JP2006039868A - Writing information input device, document processing system, writing information input program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To execute specified processing to a paper document formed by handwriting on a standard-size or nonstandard-size paper document; and to effectively make full use of writing information acquired without reading paper ID (Identification). <P>SOLUTION: The above problem is solved by additionally providing a paper ID issue means 400 issuing novel paper ID in a writing information input device 60 having: a coordinate input means 74 detecting the writing information on the paper document; a paper ID information reading means 75 recognizing the paper ID identifying the paper document located on the paper document and reading the paper ID; a storage means 71 retaining the read paper ID; a transmission means 72 transmitting the retained paper ID to other device. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a writing information input device, a document processing system, a writing information input program, and a recording medium.

  While the digitization of business is progressing and the distribution of electronic documents is increasing, the document display quality of displays such as CRTs and LCDs is still inferior to the print quality on paper. Opportunities to print on paper as documents are increasing.

  Therefore, for example, in Patent Document 1, when creating and editing a document, a plurality of authors and editors can easily access the original electronic document from a paper document in a printed form and edit the electronic document. A document processing apparatus that can do this is disclosed. Patent Document 1 discloses that an original electronic document is obtained from a paper document and information is exchanged between the electronic document and the paper document.

In Patent Document 2, an electronic document and a paper document on which the electronic document is printed are associated with each other, a means for identifying the electronic document that is the original of the paper document is provided, and a retouching is inserted into the identified electronic document. Therefore, an apparatus and a method are disclosed in which an additional work applied to a paper document can be reflected in an electronic document and a difference between the documents can be eliminated.
In Patent Document 3, means for creating a form (paper) by assigning an identifier such as a document ID is disclosed as “barcode conversion means” and “first printing means”. The relationship between the identifier on the paper document and the electronic document is disclosed in the “management table”. Means for obtaining the paper ID and writing information is indicated by the explanation of “print sheet”. Further, stroke-type input means is also described in “Optical Reader”. The means for obtaining the paper ID from the image is indicated by “barcode decoding means”, and the identifier such as the barcode is indicated by “barcode”. The processing means for interpreting the layout from the image in which the original document is recorded and performing processing corresponding to each area is described in “Additional reading processing means”.

  Patent Document 4 discloses and describes in detail a means for creating a form (paper) by assigning an identifier such as a document ID. Further, the relationship between the identifier on the paper document and the electronic document is shown in “Search Format File Database by Document ID” in FIG. 15, and is described in detail in paragraphs “0056” and “0057”. As a means for acquiring paper ID and writing information, scanner, pen type, and pad type are shown in FIG. 26, FIG. 2 and FIG. 17, and the paper ID acquisition is also disclosed. It is explained by.

  Furthermore, the means for acquiring the paper ID from the image is also described by the code reader 15 in FIG. The identifiers such as bar codes are also indicated in paragraphs “0034” to “0036”. The processing means that interprets the layout from the image of the original document that has been rewritten and performs processing in accordance with each area, “clusters the handwritten coordinates according to the format information” in FIG. 15, “formats the clustered coordinate group Process according to information processing description (OCR, Image processing, etc.) ”,“ Register OCR-processed data in nursing record database ”,“ Image-processed database is saved in .shc, .tki file as coordinate data series It is specified in a series of processing. Means for acquiring the paper ID, document ID, and processing information are described in paragraphs “0077” and “0078”.

  Patent Document 5 relates to a customer service technology that uses a bar code including operation identification information and object identification information, reads the bar code with a communication device with an optical reader, and corresponds to the bar code information. It is.

  Patent Document 6 discloses a customer service based on a bar code that encodes a check box for instructing selection of a product and a processing method, a character entry area, a printed matter ID, a check box arrangement, and a character entry area position information. It is about technology. It is disclosed that a service desired by a user can be provided by using a printed matter that is familiar to the user and a copy FAX multifunction peripheral.

  Patent Document 7 relates to customer service technology, and the content is distributed to customers with communication destination information, coordinate information indicating coordinates on the paper, and a code including information on the paper type. It can be held by hand and can be written. The information input device disclosed in Patent Document 7 has a communication function for reading a code and transmitting to a communication destination included in communication destination information included in the code. The information input device transmits the read information to the server, and the server receives the coordinate information and the media identification information included in the code, and performs a predetermined process corresponding to the received information.

  In the above-mentioned Patent Document 6, the customer needs to read the printed matter added by the writing work with the copy FAX multifunction machine. However, in Patent Document 7, the code including various information is read with an information input device such as a writing tool and It is characterized by having a function to send.

Patent Document 8 discloses a medium paper having a database storing a plurality of electronic documents, a document information section in which document information is recorded, and a barcode information section in which electronic information corresponding to the content of the document information is converted into barcode information and recorded. And a document information management system for searching and outputting a document file from a database based on the selection mark and barcode information by a marking means for selecting a desired word from a medium sheet and assigning a selection mark. .
Japanese Patent No. 3219251 Japanese Patent Laid-Open No. 10-63820 JP 2002-2222075 A JP 2002-31478 A JP 2002-281179 A JP 2002-183520 A JP 2002-215768 A Japanese Patent Laid-Open No. 11-96166

  However, in Patent Document 1, since content editing is performed only on an electronic document, the electronic document is called from a document delivered as a paper document by using a computer, and the document content is proofread / edited on the electronic document. It must be made. If you are working in a normal office, there is no particular problem with this form, but if you try to proofread and edit the document content when you are away from home or traveling in transit, you can efficiently edit the document electronically. Often you do not need tools to edit. In other words, it is difficult to carry out practical work such as inconvenience of portability such as large and heavy notebook PCs and battery duration, and small display devices, small input devices, The same goes for poorness.

Further, Patent Document 2 simply inserts the additional information added to the paper document into the electronic document. As described above, simply inserting a retouched image into an electronic document only creates an electronic document having the same appearance by eliminating the difference between the paper document and the electronic document. The electronic document in Patent Document 2 is a simple paper document. Is just a replacement. For this reason, the electronic document created according to Patent Document 2 is only practically used for the task of reading the contents.
In addition, for example, just reading the appearance of the contents filled in the answers to the questionnaires created, it is necessary for humans to tabulate again like conventional paper documents, but the work is cumbersome and it is automatically tabulated There is a need for means to do this. Such automatic processing of additional information is not limited to tabulation, and various processing and utilization are required, but cannot be realized in Patent Document 2.
Further, Patent Document 3 discloses a process related to associating an original electronic document with additional information, a process for registering process information such as a process ID, a process for editing a form itself, a paper ID, a document ID, and a process. It does not have a configuration relating to means for acquiring information.

  Further, Patent Document 4 does not mention a process for associating the original electronic document with the additional information, and describes that the association with the patient information only needs to be performed. It does not require processing related to information association. Further, it does not include a process for registering process information such as a process ID or a process for editing the form itself.

  In Patent Document 5, only a service corresponding to bar code information prepared in advance is processed, and the range of user selection is limited.

  Patent Document 6 is an invention that is limited only to preset routine processing, and does not support atypical processing.

  Patent Document 7 is also an invention that is limited to a preset routine process, and does not support an atypical process.

  Patent Document 8 is an invention that enables direct access to the digital world even from a paper document that has not been converted to hypertext. However, this invention is also an invention that is limited only to preset routine processing. Processing other than is not supported. Patent Document 8 is a patent specialized only for searching a document file in a database, and does not support other applied processes.

  In addition, the above-mentioned patent document has a problem that a case where the paper ID is not read for some reason is not taken. For example, when the paper ID is not read and the writing information is read, the writing information cannot be used effectively because it cannot specify the writing target or the original electronic document to be processed. was there.

  The present invention has been made in view of the above-described points, and performs predetermined processing on a paper document handwritten on a standard or non-standard paper document, and also obtains written information acquired without reading a paper ID. The purpose is to make effective use.

  In order to solve the above problems, the present invention includes a coordinate input unit that detects writing information on a paper document, a paper ID information reading unit that recognizes and reads a paper ID for identifying the paper document on the paper document, A writing information input apparatus having a storage means for holding a read paper ID and a transmission means for transmitting the held paper ID to another apparatus, further comprising a paper ID issuing means for issuing a new paper ID. It is characterized by that.

  The present invention holds coordinate input means for detecting writing information on a paper document, paper ID information reading means for recognizing and reading a paper ID for identifying the paper document on the paper document, and the read paper ID. A writing information input apparatus having a storage means and a transmission means for transmitting the held paper ID to another apparatus, further comprising a paper ID issuing means for issuing a new paper ID. It is possible to execute a predetermined process on the paper document handwritten on the paper document and to effectively use the writing information acquired without reading the paper ID.

  Further, as means for solving the above problems, a document processing system, a writing information input program, and a recording medium may be used.

  Note that the printing means, the processing paper ID related means, and the document paper ID related means described in the claims correspond to, for example, an element A described later. The paper ID management means corresponds to, for example, an element B described later. Moreover, an information acquisition means respond | corresponds to the element D mentioned later, for example. The decoding unit corresponds to, for example, an element E described later. The encoding unit corresponds to, for example, an element F described later. The encoded paper ID corresponds to a paper ID encoded by, for example, an element F described later.

  ADVANTAGE OF THE INVENTION According to this invention, while performing a predetermined process with respect to the paper document handwritten by the fixed form or the atypical paper document, the writing information acquired without reading paper ID can be utilized effectively.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, an outline of the present embodiment will be described first, and then an overall configuration diagram will be described.

  The document processing system in this embodiment connects the paper world and the electronic world. For example, there is a system in which a form is opened on a Web screen, input is performed with a keyboard, and finally, a Submit button is pressed, input data is sent to a server and subsequent processing (for example, shopping) is performed.

  Similarly, the document processing system implements a system in which writing information written with the pen is sent to the server and the subsequent processing is performed in exactly the same way by writing on the form of the paper document with the pen. Is for. In other words, the document processing system equivalently realizes the work performed with the screen and the keyboard in the electronic world by performing the work with the paper document and the pen.

  An overall configuration diagram of a document processing system that performs such processing will be described with reference to FIG. 1 includes a form creation PC 101, a printing apparatus 102, a form processing PC 103, a scanner 105, a digital PAD (hereinafter referred to as D-PAD) 104, an image acquisition apparatus 500, and a data server 106. A network 107 is shown.

  The form creation PC 101 creates a paper document form to be written. The printing apparatus 102 prints a form that is a paper document. The form processing PC 103 performs processing related to written data from a written paper document according to a form form. The scanner 105 reads a written form. The D-PAD 104 acquires handwritten coordinates continuously, and as a result, acquires writing information written on a form. The data server 106 is a database for form processing. The image acquisition apparatus 500 acquires an image using the area CCD as an imaging device.

  In the following description, a form that is read by the scanner 105, that is, a scan image, and a handwritten coordinate that is acquired by the D-Pad 104, that is, a stroke data that is generically referred to as handwritten information.

  In the following description, the form creation PC 101 and the printing apparatus 102 are combined into a form creation apparatus 108, the form processing PC 103, the scanner 105, the D-PAD 104, and the image acquisition apparatus 500 are combined into a form processing apparatus 109 and a data server 106. Sometimes expressed as a storage device 100.

  Next, the hardware configuration of each PC shown in FIG. 1 will be described with reference to FIG. The hardware configuration shown in FIG. 2 includes an input device 31, a display device 32, a drive device 33, a recording medium 34, an auxiliary storage device 35, and a memory device 36 that are connected to each other via a bus B. The arithmetic processing unit 37 and the interface unit 38 are included.

  The input device 31 includes a keyboard and a mouse operated by a user of the PC, and is used to input various operation signals to the PC. The display device 32 displays various windows and data necessary for operating the PC. The interface device 38 is an interface for connecting a PC to a network, and includes, for example, a NIC (Network Interface Card) or a modem.

  A program for operating the PC is provided by a recording medium 34 such as a CD-ROM or downloaded through a network. In addition, the recording medium 34 is set in the drive device 33, and data and programs are installed in the auxiliary storage device 35 from the recording medium 34 via the drive device 33.

  The auxiliary storage device 35 that is a storage stores data and programs, and stores necessary files and the like. The memory device 36 reads the program from the auxiliary storage device 35 and stores it when the PC is activated. The arithmetic processing unit 37 executes processing in accordance with a program read and stored in the memory device 36.

  The overall configuration shown in FIG. 1 described above is an example, and the document processing system may include the elements described in FIG. 3, so other configurations may be possible.

  FIG. 3 is a diagram showing elements A to K constituting the document processing system and their relationship, and the relationship between the user, an external processing program described later, and storage.

  A user 110 shown in FIG. 3 is a user who uses the document processing system. The external processing program is a program that performs a predetermined operation based on written contents, and this program needs to be prepared in advance. The storage 112 is a storage device that stores information, and includes, for example, the hard disk, the MO drive, and the semiconductor disk.

  Next, each element will be described. The element A121 assigns and prints a paper ID on paper, and associates the paper ID with the document ID and the processing ID. Each of these IDs will be described later. The element B122 manages the paper ID, and associates the document ID assigned to the electronic document with a fixed form with the paper ID.

  Element C123 is a paper document to which a paper ID is assigned, and the user 110 writes on the paper document. The element D124 acquires data and a paper ID from a paper document. Element E125 is for decoding the paper ID. Element F126 encodes a paper ID. Element G127 is a paper ID. The element H128 associates the process ID with the external process program 111 and manages the process ID. Element I129 is for editing / managing form layout information and processing method. Element J130 is for disassembling and storing the writing information from the form layout information and processing method into writing information. The element K131 converts the paper ID into a document ID and a processing method.

  In the case of FIG. 1, these elements A, B, and E are mounted on the form creation device 108, the element I is mounted on the storage device 100, and the elements D, F, J, and K are mounted on the form processing PC 109. Has been.

  If it is clear from a drawing or the like that the code is a two-dimensional code, code, or encoded paper ID, the encoded paper ID may be simply expressed as a paper ID.

  The elements described above can be realized as software or hardware. For this reason, in the following description, the expression “module” may be used to describe what constitutes them. Further, although each ID is a paper ID, it is uniquely assigned to each paper, and the IDs of all the papers are different IDs. Alternatively, when printing a plurality of the same document ID and the same page, these may be the same paper ID.

  The process ID is an ID assigned to a process for writing information performed in the document management system. The document ID is an ID assigned to an electronic document and may be expressed as an original document ID.

  Next, a series of document processing will be described in detail in relation to the elements described above.

  First, an external processing program and a document processing system will be described. Since the interface between the external processing program and the document processing system is predetermined, an external processing program corresponding to the interface is created.

  The external processing programs created in this way can be classified into two types, one is an external processing program that performs atypical processing that processes the writing information itself, and the other is the writing information that is written on a paper document. This is an external processing program that decomposes data according to the form and performs standard processing on the data.

  Here, the standard processing is called so-called form processing, which means that a field to be pre-filled, that is, a form is provided, and the subsequent processing is determined depending on where the data is entered. For example, anything entered in the address field is treated as an address. In other words, the processing is determined by the place of writing. Here, the atypical process refers to a process other than the above-described standard process.

  In this embodiment, in the atypical process, a data file in which writing information is described is stored in a predetermined folder. An external processing program that performs atypical processing is a program that periodically monitors this folder or database, acquires a new file if it is created, and processes the new file.

  Alternatively, it is a program that uses an OS (Operating System) that generates an event when a new file is stored in a folder or database, and performs processing by catching this event.

  As an example of an external processing program for performing such an atypical process, there is a program in which writing information is superimposed on an electronic document and mailed as an attached file to a predetermined person.

  Next, in the present embodiment, since data such as writing information is stored in a predetermined database in this embodiment, an external processing program that performs the routine processing periodically monitors the database to create new data. If so, it is created as a program that acquires and processes it.

  Alternatively, an external processing program for routine processing is created as a program that uses a database that generates an event when new data is registered in the database and catches the event. Examples of such an external processing program for routine processing include questionnaire processing.

  Note that both an external processing program that performs non-standard processing and an external processing program that performs standard processing are not necessarily required, but at least one is necessary to perform some processing. In the following description, an external processing program that performs atypical processing is expressed as an atypical processing program, and an external processing program that performs standard processing is expressed as a standard processing program.

  The external processing program described above is registered in the document processing system in order to associate with the document processing system.

  First, details of a module for registering an atypical processing program are described in element H. Processing information is registered using this module.

  This processing information represents an interface method between the system and the atypical processing program, and includes, for example, a folder name in which data is stored. At this time, the data format is determined in advance. As will be described later, since it is necessary to select which external processing program is to be activated at the time of printing, an explanatory text necessary for that purpose is also registered. By registering, the process ID is automatically assigned in the element H, and is reused as described later.

  Next, the standard processing will be described. In order to perform routine processing, the form must first be designed. Details of the module for that purpose are described in Element I. This is to edit and register the layout information and processing information of each element of the form. In this embodiment, the routine process is registered in advance with a process ID of 0. The layout information here represents, for example, the position of the input field on paper, and the processing information represents which element is registered in which database, and whether character recognition is performed. Represents such as.

  A user who uses the document processing system first prints a paper document. For this purpose, first, an electronic document to be printed is printed using the element A. This electronic document is stored as a file, and the file name includes an extension normally used to determine what kind of file the file is.

  Since the electronic document for the standard processing has a specific extension, the standard processing or the non-standard processing is determined by the extension of the electronic document to be printed.

  In the case of non-standard processing, when printing is instructed to the above module, this module presents information regarding the external processing program registered in the element H to the user, and requests selection of processing to be performed after writing. The process ID is determined by selecting which process the user performs.

  When the process ID is determined, the module registers the ID of the electronic document and the process ID in the element B, and acquires the paper ID. Thereafter, this paper ID is assigned to the paper document and printing is performed to obtain a paper document assigned with the paper ID, that is, the element C.

  In the case of standard processing, when the module is instructed to print, unlike the case of non-standard processing, the processing ID is set to 0. The electronic document ID and processing ID are registered, and the paper ID is acquired. Thereafter, printing is performed in the same manner as before, and the element C is obtained.

  With the above processing, the paper document is associated with the electronic document and the processing to be written. That is, a paper ID is assigned to a paper document, and a document ID and a processing ID are associated with the paper document. When writing on the paper, which paper was written and what processing is performed after writing. This is registered in the document processing system. The original document represents a document for which writing information is not yet described.

  Next, the operation after writing on paper will be described. The user writes on the paper document that is the created element C, and inputs the paper document as an image using a scanner corresponding to the element D, for example, a scanner unit of an MFP (Multi Function Printer). Thereby, the paper ID is acquired by the element E in the element D. These paper IDs and images are sent to element K.

  Alternatively, the user installs a paper document, which is the created element C, on the coordinate input device corresponding to the element D, and performs writing. Then, the writing information is acquired by the element D, and the paper ID is acquired by the element E in the element D. These paper ID and writing information are sent to the element K.

  In the element K, the document ID and the processing ID are specified by inquiring the element B from the acquired paper ID. This identification is possible because the document ID and processing ID are registered in the element B and the paper ID is acquired.

  Next, by querying the element H, it is possible to obtain from which folder the writing information is stored from the processing ID, and the document ID and the image are stored together there.

  Next, a case where the process ID is 0 will be described. When the process ID is 0, the standard process is performed. First, the document ID and image are passed to element J. Element J makes an inquiry to element I and obtains form layout information and processing information from the document ID. The processing information here is data storage destination, character recognition / mark recognition of writing information, and the like.

  Therefore, first, based on the layout information, the image is decomposed for each entry field that is a field, and when the scanner is used as the element D, the image of the electronic document is compared with the image of the written paper document. Only get an image. Alternatively, when a coordinate input device is used as the element D, the written coordinate sequence is obtained as it is. Thereafter, character recognition, mark recognition, and the like are performed according to the processing information, and the result is stored in the database.

  The above is a detailed description of a series of document processing. Next, details of each element will be described.

  First, the element A will be described. In the description of the element A, five examples will be described. First, the first embodiment will be described with reference to FIG.

  The flowchart shown in FIG. 4 shows processing when a document is independently printed on a stand-alone PC without using a network.

  First, in step S101, the layout editor is activated to display the created electronic document. This layout editor can browse / select process IDs, obtain paper IDs, and display / edit / print electronic documents. Specifically, the above-described functions are realized by linking elements B, F, and H, element I “form creation program” in the case of a standard document, and word processor software in the case of an atypical document. In step S102, the electronic document is edited as necessary.

  In the next step S103, when the user makes a print request, the standard document / atypical document is discriminated based on the extension of the electronic document as described above, and in the case of atypical processing, the external processing program registered in the element H The information regarding is presented to the user, and the process ID of the process performed after writing is determined. In the case of the standard processing, when the printing instruction is given, unlike the case of the non-standard processing, the processing ID is set to 0, so that the user is not prompted to select the processing.

  In the next step S104, the paper ID is acquired. In step S105, the paper ID is encoded into a two-dimensional code, and in step S106, the two-dimensional code is pasted at a predetermined position in the electronic document. In step S107, the electronic document is printed.

  For obtaining the paper ID in this processing, the element B is used, and the paper ID is associated with each page of the electronic document and the processing ID, and the management database is used for them. The element F is used to create a two-dimensional code from the paper ID after obtaining the paper ID.

  The created two-dimensional code is superimposed at a designated position in the electronic document when a superimposition position is designated, and is superposed at a predetermined position in a predetermined electronic document when no superposition position is designated. . A series of flow from obtaining the ID to inserting the two-dimensional code into the document is automatically performed when the user executes printing with word processing software. Or it prepares in a menu and a user makes it execute at arbitrary time explicitly.

  For this purpose, if the word processing software has a macro function, it can be realized by using the macro function. In this case, if the element B and the element G are software modules and are in the form of Windows (registered trademark) COM, these modules can be called from the macro function, and if the AddPicture method of the module called WordObjectLibrary is used. Images can be inserted at any position in the electronic document. In this way, the paper document as the element C is printed.

  When acquiring the paper ID in step S104, the element B is used first. At this time, the paper ID is also managed by the element B. Further, the process ID is associated with the paper ID, and the document ID is associated with the paper ID.

  Next, a second embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing a process when printing is performed by the print service after a document is created / edited. First, in step S201, the user creates an electronic document. Each component (object) and its characteristics are described in this electronic document.

  In step S202, the user activates / displays / modifies the layout editor as necessary. In the next step S203, processing ID selection / paper ID acquisition is performed using the function of the layout editor. In this process, the element H is used to select the process ID, and the element B is used to acquire the paper ID. The paper ID is associated with each page of the electronic document, and the process ID, and a database for managing them. Is used. The process ID is selected only for an atypical document. In the case of a standard process, the process ID is set to 0, and the user is not prompted to select a process.

  In step S204, a two-dimensional code is created from the paper ID by the element F. In step S205, the created two-dimensional code is displayed at a designated position in the electronic document when the superimposition position is designated, or at a predetermined position in the electronic document that is predetermined when the superposition position is not designated. Is superimposed on.

  In the next step S206, the created two-dimensional code superimposed electronic document or the storage location of the electronic document is transmitted to the print service using SOAP (Simple Object Access Protocol). When transmitting the storage location of the electronic document, the two-dimensional code superimposed electronic document is stored in a location accessible from the print service.

  In step S207, the process branches depending on whether the transmitted document is an electronic document or an electronic document storage location. In the case of an electronic document, the electronic document is printed in step S209 by the function of the layout editor or viewer.

  When the storage location of the electronic document is transmitted, the electronic document is acquired from the storage location received inside the print service in step S208, and the electronic document is printed in step S209.

  The second embodiment described above enables printing even when a printing environment such as a printer driver is not installed in a PC that performs layout editing.

  Note that the printing service operates on a predetermined PC, and the printing environment installed on the PC is open to other PCs as a service. Can be used to print electronic documents. In other words, an electronic document printing command can be issued even on a PC without a printing environment. Also, since there is no need to edit inside the print service, it is only necessary that a viewer having a print command is installed in the PC on which the print service operates.

  Next, the third embodiment will be described with reference to FIG. FIG. 6 is a flowchart illustrating a process for printing using a print service without editing an electronic document.

  After the user creates an electronic document in step S301, in step S302, the electronic document, the storage location of the electronic document, and the process ID are transmitted to the print service using SOAP. At this time, when transmitting the storage location of the electronic document, the electronic document to be printed is stored in a location accessible from the print service.

  The process ID to be transmitted is determined by obtaining a list of process IDs by element H when the electronic document is an atypical document and prompting the user to select a process ID. If the electronic document is a standard document, the process ID is determined. 0 is used as the ID.

  In step S303, the process branches depending on whether the transmitted document is an electronic document or an electronic document storage location. When the electronic document is transmitted, the process proceeds from step S303 to step S305. When the storage location of the electronic document is transmitted, the process proceeds from step S303 to step S304, and the electronic document is acquired from the storage location received in the print service.

  When the electronic document is acquired or received, in step S305, the PC on which the printing service operates acquires a paper ID. For obtaining the paper ID in this processing, the element B is used, and the paper ID is associated with each page of the electronic document and the processing ID, and a database for managing them is used.

  In the next step S306, a two-dimensional code is created from the paper ID by the element F. In step S307, the created two-dimensional code is displayed at a designated position in the electronic document when the superimposition position is designated, or at a predetermined position in the electronic document that is predetermined when the superposition position is not designated. Is superimposed on.

  In step S308, the electronic image printing image file on which the two-dimensional code is superimposed is printed on paper. Among these, the functions of the layout editor already installed in the PC on which the printing service operates are used for paper ID acquisition, two-dimensional code creation, two-dimensional code pasting, and printing.

  The third embodiment described above enables printing even if an electronic document is created on a PC in which no layout editor is installed. If the print service operates on a predetermined PC and a layout editor is installed only on the PC, the electronic document can be printed using the function. That is, a print command for an electronic document can be issued even on a PC without a layout editor.

  Next, a fourth embodiment will be described with reference to FIG. FIG. 7 is a flowchart illustrating processing for printing using a print service without editing an electronic document.

  In step S401, after the user creates an electronic document, in step S402, the electronic document or the storage location of the electronic document, and in addition, the processing ID is transmitted to the print service using SOAP. At this time, when transmitting the storage location of the electronic document, the electronic document to be printed is stored in a location accessible from the print service. In addition, when the electronic document is an atypical document, the process ID to be transmitted is determined by obtaining a list of process IDs by the element H and prompting the user to select a process ID. When the electronic document is a standard document The process ID is 0.

  In step S403, the process branches depending on whether the transmitted document is an electronic document or an electronic document storage location. When the electronic document is transmitted, the process proceeds from step S403 to step S405. If the storage location of the electronic document is transmitted, the electronic document is acquired from the storage location received in the print service in step S404.

  In step S405, the acquired or received electronic document is converted into a print image file by the layout editor or the viewer function in the print service. In the next step S406, the PC on which the print service operates acquires the paper ID. For obtaining the paper ID in this processing, the element B is used, and the paper ID is associated with each page of the electronic document and the processing ID, and a database for managing them is used.

  In the next step S407, a two-dimensional code is created from the paper ID by the element F. In step S408, the created two-dimensional code is converted into a print image file in the same manner as the electronic document. When the superimposition position is designated, the superposition position is not designated at the designated position in the electronic document. In such a case, the image is superimposed on a predetermined position in a predetermined electronic document. In step S409, an image file for printing an electronic document on which the two-dimensional code is superimposed is printed on paper.

  The fourth embodiment described above enables printing even if an electronic document is created on a PC in which no layout editor is installed. If the print service operates on a predetermined PC and a layout editor is installed only on the PC, the electronic document can be printed using the function.

  In other words, a layout file print command can be issued even on a PC without a layout editor. In addition, since the print service does not edit the electronic document itself but performs an image superimposition operation on the print image file, a viewer having functions such as file output by a print command operates the print service. What is necessary is just to be introduced into PC.

  Further, since the two-dimensional code superimposing operation in the print service is performed on the converted file after being converted into the image file for printing, it can be performed in a unified operation regardless of the format of the original electronic document. Another advantage of the fourth embodiment is that the dimension code data can be superimposed and output to paper.

  Next, a fifth embodiment will be described with reference to FIG. FIG. 8 is a flowchart illustrating processing for printing using the print service. After the user creates and edits the electronic document using the layout editor in step S501, in step S502, a print image or page description language that does not depend on the platform from the document (hereinafter referred to as a print image including the page description language and the like). ). When an existing electronic document is used without being edited, a print image such as a layout viewer is used to create a print image from the electronic document. The print image represents an image of a paper document actually printed on paper.

  In step S503, the print image of the electronic document created in this way is transmitted to the print service using SOAP. At this time, the process ID selected by the user and the document ID indicating the storage destination of the electronic document are transmitted to the print service together. In the PC running the print service, after receiving the print image, the document ID, and the process ID, the paper ID is acquired in step S504. For obtaining the paper ID in this process, the element B is used, and the paper ID and the electronic document are associated with each other and a database for managing them is used.

  In the next step S505, a two-dimensional code is created from the paper ID by the element F. In step S506, the created two-dimensional code is converted according to the format of the print image of the electronic document received earlier, and if the superimposition position is designated, the superposition position is designated at the designated position in the electronic document. If there is no, it is superimposed at a predetermined position in a predetermined electronic document.

  In step S507, an image file for printing an electronic document on which the two-dimensional code is superimposed is printed on paper.

  The fifth embodiment described above enables printing with a two-dimensional code even when the storage destination of the original electronic document is in a place where access from the printing service is not possible. The print service superimposes the two-dimensional code and the electronic document after receiving the print image of the electronic document, but the layout editor does not need to be installed in the PC because the layout editor is not used for this superimposition processing. .

  Further, when printing an existing electronic document that does not need to be edited, the PC that creates the electronic document only needs to be able to issue a print command for the layout file necessary for creating the print image, and the PC has an editing function. There is no need to have a layout editor installed.

  That is, it becomes possible to superimpose a two-dimensional code on an electronic document without using a layout editor for both of the two PCs to exchange. For example, in the case of a PDF file, it is not necessary that an editing application such as Acrobat (registered trademark) of Adobe Corporation is installed on a computer that is a PC for creating an electronic document, and a printing command such as Acrobat (registered trademark) Reader is used. It is sufficient that only applications that can be issued are installed.

  Next, the element B that manages the paper ID will be described. 9 and 10 show examples of management tables used in the element B that associates and manages paper IDs and documents.

  When a paper ID registration request is made for paper output from another element, element B receives at least information that can uniquely specify an electronic document, and assigns a paper ID that is unique in the management table to it. Document information is stored in the management table.

  The management table will be described. In FIG. 9 and FIG. 10, each row as a group as shown in the row 145 is a unit of document information corresponding to the registered paper ID, and each column is a registration element of the paper ID.

  The column 141 stores the assigned paper ID. A column 142 stores information for uniquely specifying an electronic document. In FIG. 9, a path name is designated as information for uniquely designating an electronic document. However, when handling up to electronic documents stored in different PCs, as shown in FIG. Or URI (Uniform Resource Identifiers). When a multi-page electronic document is handled, document information exists for each page, and the column 142 includes information on the number of pages. Further, as shown in FIG. 10, when information regarding the number of pages is not stored in the column 142, it is stored in another column 146. In that case, the electronic document is uniquely specified by the column 142 and the column 146.

  Further, when the storage destination of the electronic document is a document management system, the management ID may be used. Furthermore, even if the electronic document storage destination systems are different as shown in FIG. 10, there may be a plurality of storage destination systems as long as the stored electronic documents can be identified. Further, when accepting the registration request, the electronic document itself may be received, stored in a file name that can be distinguished from other documents, and then registered by assigning a paper ID.

  The management table further includes a column 143 to which a processing ID indicating what processing program is to be processed with respect to the paper document or writing on the paper document. A detailed description of the process ID is given in element H.

  Further, the document information has a column 144 indicating from what application the electronic document was created. Any number of attribute information regarding the electronic document or the paper document may be stored in the column 144 and below.

  Further, when a paper ID is designated and a reference request, which is a request for management information, is made, the element B searches for the corresponding paper ID from the paper ID in the column 141 in FIG. 9, and corresponds to the searched paper ID. Information for uniquely specifying the electronic document shown in the column 142 is passed to the request source. Element B may also pass attribute information from column 143 onward, but at least the information of column 142 is passed. In the case of FIG. 10, the information of at least column 142 and column 146 is passed.

  Further, when the element B is a program, the contents of the management table shown in FIGS. 9 and 10 may be stored in a memory in which the program operates, or are stored as a file system file at a certain timing. May be. There is also a form in which the contents of the management table are stored as electronic information in a database. In this case, the paper ID and its attribute information are stored as one record, and the paper ID is associated with the electronic document by storing or retrieving information such as a document by using the paper ID as a key. Good.

  In this way, even if the element B stops once by storing the management table managed by the element B not only in the memory that performs the program operation but also in a nonvolatile storage such as a file on the hard disk. The document processing system can use the association information that has been managed until then.

  In addition, by storing the association information between the managed paper ID and the electronic document as a network accessible database in the nonvolatile storage device, a plurality of elements B that refer to the association information to the database exist on the system. It becomes a document processing system that can.

  Furthermore, the element B exists in a device independent of the other elements, and may be connected in a network accessible from the devices of the other elements. At this time, in particular, the element B exists in the form of RPC (Remote Procedure Call), Web service, and the like, and accepts registration requests and reference requests from other means via the network.

  In this way, if the element B is connected to other elements through a network and the element B is the only one that issues an identifier for a paper document in the system, it is possible to further The system can receive a registration request and a management information reference request from an element device.

  Further, even when the electronic document information is received, even if the same electronic document name exists on the network, the name can be distinguished and managed by including the stored PC name such as the network path name. It becomes a possible system. A system capable of receiving and storing an electronic document to be registered, managing the stored electronic document name in association with the assigned paper ID, and managing the same electronic document name separately for each registration; Become.

  Next, element C, which is a paper document to which a paper ID is assigned, will be described. First, an example of a paper document will be described with reference to FIG. FIG. 11 shows an example of a paper document as a member registration / unregistration form 40 such as a circle. The paper document is generated by printing an electronic document managed on a computer by a printer. In addition, this withdrawal / membership registration form 40 is plain paper.

  On the unregistration / admission registration form 40, a content 46 defined by an electronic document, a machine-readable two-dimensional code 45, and four timing marks 41, 42, 43, and 44 are printed. The timing marks 41, 42, 43, and 44 are used for alignment when reading written information, but the shape, number, size, color, and the like are not limited. In addition, there may be no timing mark.

  Incidentally, as shown in the withdrawal / admission registration form 47, the withdrawal / admission registration form 40 is filled in with an appropriate writing instrument.

  Further, there may be a paper document in which data is embedded in the content, such as the paper document shown in FIG. FIG. 12 shows a paper document example 59, four timing marks 48, 49, 50, and 51, an enlarged view 53 of a part of the enlarged content 52, an identifier 54, and a code frame and alignment. A dot 55 and a data dot 56 are shown. Thus, in the paper document example 59, data is embedded in the content.

  In the present embodiment, the element C is expressed as a paper document. However, the element C may be anything that can be written with a writing tool, and paper, a sheet-like plastic film, or the like can be used.

  Next, the element D for acquiring writing information from a paper document will be described.

  An image acquisition apparatus using an area CCD such as a digital camera as an example of the element D as an imaging device will be described.

  In the case of this image acquisition device, for example, if an A4 size paper document is captured at once with an area CCD (number of pixels 2048 × 1536 (pixels)) of 3 million pixel class, the converted effective resolution is about 170 (dpi). . In order to capture an image with a large amount of information such as a two-dimensional code and decode it, a correspondingly high resolution is required, and 170 (dpi) may not be sufficient. In this case, it may be possible to improve the resolution by increasing the integration degree of the area CCD, but there is a limit in the process of the semiconductor manufacturing technology.

  Therefore, in this embodiment, the area CCD is used as an imaging device, and an imaging unit having a zoom lens with a variable imaging magnification is provided, and a partial region of the subject is zoomed up by a driving unit that moves the imaging unit as a divided region. An image acquisition apparatus that realizes high resolution by capturing and synthesizing images and that can read a two-dimensional code or the like will be described.

  A configuration example of this image acquisition apparatus is shown in FIG. The image acquisition apparatus shown in FIG. 52 includes an imaging unit 201, a drive unit 202, a support column 203, a control unit 205, an interface 204, a support base 206, and two operation switches 207.

  The driving unit 202 drives the imaging unit 201 to rotate as indicated by a dotted line. The support column 203 supports the imaging unit 201 and the driving unit 202. The control unit 205 is configured to control the image acquisition device and to support the support column 203 together with the support base 206. The operation switch 207 is for operating the image acquisition apparatus. The partial areas indicated by the dotted lines A to I of the paper document 208 represent the partial areas photographed by the image acquisition apparatus.

  Next, further detailed configurations of the above-described imaging unit 201, driving unit 202, and control unit 205 are shown in FIG.

  The control unit 205 includes a system controller 211, a CPU (Central Processing Unit) 210, an SDRAM (Synchronous Dynamic Random Access Memory) 212, a PCI (Peripheral Component Interconnect) bus 213, and a PCMCIA (Personal Computer Memory Card International Association) 214. I / O (Input / Output) input / output device 215, IDE 217, PCI / ISA (Industry Standard Architecture) bridge IDE (Integrated Drive Electronics) USB (Universal Serial Bus) conversion interface 218, USB 219, and hard disk 216 And a small board computer unit comprising an ISA bus 220, an I / O controller 221, a serial 222, a parallel 234, and a LAN (Local Area Network) interface 235.

  The control unit 205 performs operation control of the imaging unit 201, image processing, editing, recording, and the like of the image transferred from the imaging device 201, and is connected to the external device via the interface 204 (see FIG. 52). Communication.

  As the interface 204, a general-purpose interface for PC, for example, RS-232C, USB, IEEE1394, a network adapter, or IrDA (Infrared Data Association) is used. In the present embodiment, the configuration using the control unit 205 is shown, but the processing and recording performed by the control unit 205 may be replaced by the MPU 236 in the imaging unit 201.

  Next, the drive unit 202 will be described. The drive unit 202 includes a stepping motor X255, a stepping motor Y256, a rotary encoder X244 for detecting the rotation amount, a rotary encoder Y257, a detection circuit 258, and a drive circuit 243.

  Note that if a rotation position of the stepping motor is calibrated by providing a reference position that stops at a predetermined rotation position, the rotary encoders and the detection circuit may not be provided.

  Next, the imaging unit 201 will be described. The imaging unit 201 will be described with reference to FIG. 54 in which a lens is also shown together with the imaging unit 201.

  FIG. 54 shows a CDS (Correlated Double Sampling) 241, an A / D converter 242, an IPP (Image Pre-Processor) 281, a memory 240, a TG (Timing Generator) 280, and an MPU 236. And an I / O controller 237, an I / O device 261, fixed lenses 267 and 268, a zoom lens 266, a diaphragm mechanism 265, a shutter 264, a focus lens 263, and an image sensor 262. Note that the I / O device 261 collectively represents the serial 238 and the USB 239 described with reference to FIG.

  The image of the subject is formed on the image sensor 262 by controlling the exposure time by the shutter 264 through the fixed lenses 267 and 268, the zoom lens 266, the aperture mechanism 265, and the focus lens 263. The image signal from the image sensor 262 is sampled by the CDS 241 and then converted into a digital signal by the A / D converter 242. The timing at this time is generated by TG280. Thereafter, the image signal is subjected to image processing such as aperture correction, compression, and the like by the IPP 281, and is stored in the memory 240.

  The operation of each unit is controlled by the MPU 236. The I / O controller 237 is connected to an external device via the I / O device 261, and is used for image input / output, communication of shooting control signals, and the like.

Next, the movement of the control unit 205 when a single subject is divided and shot will be described with reference to FIG. 53 again.
(1) The control unit 205 applies a pulse voltage from the I / O input / output device 215 to the drive circuit 243 of the drive unit 202, and feeds back the rotation detection value of the detection circuit 258 so that a predetermined angle is obtained.
(2) The control unit 205 transmits a shooting control signal from the USB 219 to the USB 239 of the imaging unit 201.
(3) (1) and (2) are repeated as necessary. When image transfer is instructed, the image is transferred from the imaging apparatus 201 to the control unit 205 via the USB 239, and the control unit 205 transmits the image to the network via the LAN interface 235.
(4) It is assumed that the paper document 208 (see FIG. 52) is printed with data identification information such as a two-dimensional code 290 described later, as shown in FIG. The two-dimensional code that is the encoded paper ID is decoded by the element E. If the decoding is successful and the paper ID can be acquired, the information such as the device type, the paper ID, and the image is converted into the element K as data in the XML format. Sent to.

  Next, processing of the image acquisition apparatus from shooting of an image on a paper document to associating a result of decoding a two-dimensional code with an image obtained by shooting will be described with reference to the flowchart of FIG.

  In step S1401, the image acquisition apparatus adjusts the zoom lens, and captures the entire image so that the entire paper document that is the subject is captured in a positional relationship in which the subject and the imaging surface face each other. In step S1402, the image acquisition apparatus detects a code area in which a code such as a two-dimensional code exists from the captured image. Next, in step S1403, the image acquisition apparatus calculates the area coordinates and the barycentric position of the code area. In this case, the speed of step S1403 may be increased by prescribing the area where the code exists. Alternatively, the area may be a circumscribed rectangular area of the code area, and the barycentric position of the circumscribed rectangular area may be calculated.

  From the region coordinates obtained in step S1403 and the coordinates of the barycentric position thereof, in step S1404, the image acquisition apparatus linearly sets the zoom magnification and the driving amount of the driving unit 202 for acquiring information for identifying data as a larger captured image. Calculate by calculation. This drive amount is calculated from two directions of pan (left and right) and tilt (up and down) with the optical axis as the roll axis.

  Based on the calculated result, the image acquisition apparatus drives the drive unit 202 in step S1405. In the next step S1406, the image acquisition device captures an image at the driven position. In step S 1407, the image acquisition apparatus decodes the read code by the element E. In step S1408, the image acquisition apparatus associates the decoding result with the entire captured image.

  As a result, only the code area can be acquired with high resolution, and a highly reliable paper ID can be assigned to the entire image captured at high speed.

  Next, actual photographing will be described. As described above, the image acquisition device is configured to divide and shoot a paper document by driving the imaging unit, and to synthesize each of the divided and captured images into one image.

  First, split imaging will be described. As illustrated in FIG. 52 described above, the imaging unit 201 can drive the areas A, B, and C by driving in the left-right direction indicated by the dotted line.

  Furthermore, as shown in FIG. 57, the imaging unit 201 can drive all the areas from A to I by driving in the vertical direction. FIG. 57 shows a state where the imaging unit 201 captures a paper document 208. The imaging unit 201 captures two areas 301 and 302 of the paper document 208.

  As described above, when shooting a subject with high resolution, the angle of view of the imaging system is made as narrow as possible and shot at a plurality of positions. In this case, shooting is performed so that all parts of the subject are shot in one of the divided images.

  A divided image shot in this way and a synthesized image synthesized by joining the divided images will be described with reference to FIGS. 58 and 59. FIG. As shown in FIG. 58, the divided image is obtained by dividing an image on which an alphabet is drawn into six parts. As shown in FIG. 58, it can be seen that the characters in the downward direction in the figure are smaller. An image obtained by joining these six divided images is an image shown in FIG.

  Not only when images are joined by such a method, but also when a subject is photographed without being divided, trapezoidal distortion (tilt distortion) as shown in FIG. 59 occurs. Therefore, it is necessary to make the image face up as shown in FIG. The image shown in FIG. 60 is an image obtained by correcting tilt distortion and removing noise from the image of FIG.

  The correction of tilt distortion is based on the directly-facing image at the position facing the subject, and a projection transformation matrix between the facing image and another image is obtained in advance, and the image is rearranged using it. Can be obtained.

  In order to simplify the description of this shooting, a case will be described in which the two areas 301 and 302 shown in FIG. First, a point on the region 301 and a point on the region 302 are each assumed to be two points represented by Equation 1.

このとき、被写体が平面の場合、両者には、次に示す数２、数３の関係が成り立つ。

At this time, when the subject is a flat surface, the following relationships 2 and 3 are established.

数２、数３の各ｈは、以下の行列で定まるものである。

Each h in Equations 2 and 3 is determined by the following matrix.

数４に示される行列は、射影変換行列であり、画像が撮影される２つの位置が同じ場合、この関係は一定である。従って、予め既知の組(u1,v1)、(u2,v2)からh1〜h8を算出すれば良い。

The matrix shown in Equation 4 is a projective transformation matrix, and this relationship is constant when the two positions where the image is taken are the same. Therefore, h1 to h8 may be calculated from the known sets (u1, v1) and (u2, v2) in advance.

  By using Equation 1, Equation 2, and Equation 3, the position when each point on the region 302 is photographed at the position on the region 301 can be calculated. A pixel on the region 302 can be mapped to the area. Even when there are three or more divided images, for example, a projection transformation matrix between one area and another area is calculated in advance. By doing so, a face-to-face divided image is obtained, and by sequentially joining, the face-to-face image shown in FIG. 60 can be obtained.

  The above is the configuration and processing content of the image acquisition apparatus. Next, six modified examples of the image acquisition device will be described. In the following description, the description of the already described symbols such as the symbols described in FIG. 52 is omitted.

  The image acquisition apparatus shown in FIG. 61, which is a first modification, includes an image pickup unit 310 for reading a code such as a two-dimensional code in the image acquisition apparatus shown in FIG. This is provided separately from 201.

  The image acquisition apparatus shown in FIG. 61 is provided for the purpose of capturing a small area where a code exists with high resolution, and therefore may be configured with an image input apparatus that is smaller and less expensive than the imaging unit 201. In this case, the image acquisition apparatus records the decoding result of the code 311 on the image captured by the imaging unit 310 in correspondence with the image captured by the imaging unit 201.

  The second modified example shown in FIG. 62 includes a paper ID information reading unit 312 instead of the imaging unit 310. The paper ID information reading unit 312 is assumed to use an imaging unit used in a general-purpose bar code reader or the like.

  Next, a third modification will be described with reference to FIG. The image acquisition apparatus shown in FIG. 63 has an apparatus configuration in which a code 311 is provided on an underlay 313 of a paper document 208 to be input, and the column 203 is supported by a support base 315. As a result, a code can be given to paper to which no code is given, and a code can also be given by combining it with a printer or the like and outputting it again on paper.

  The fourth modified example shown in FIG. 64 has a device configuration in which a cord 314 is provided on a planar member that can be stored in the support base 315.

  The fifth modified example shown in FIG. 65 has an apparatus configuration in which the projection unit 316 is provided on the imaging unit 201 so that the code 316 can be projected onto the projection region 317 indicated by the dotted line. The code freely projected by the user can be edited as electronic data.

  The projection unit 316 is provided on the imaging unit 201 in FIG. 65, but may be fixed to another part. The projection unit 316 has a configuration similar to a typical liquid crystal projector including a light source, a condenser lens, a mirror, a liquid crystal panel, and a projection lens, or a DLP (Digital Light Processing) using a DMD (Digital Mirror Device). However, it is better to make it small.

  A sixth modification shown in FIG. 66 is a paper document to be captured by providing a portable information terminal 318 having a display device such as a liquid crystal display in the imaging range indicated by a dotted line and displaying a code on the display device. A code corresponding to 208 can be assigned.

  The above are the six modified examples, but the fact that the drive unit is not shown in FIGS. 63 to 66 indicates that the configuration is not limited to the configuration having the drive unit.

  Next, a writing information input device 60 which is another embodiment of the element D is shown in FIG. The writing information input device 60 is a paper ID information reading device 75 for associating and identifying a coordinate input device 74 such as a digitizer for acquiring writing information on paper and information printed on paper and electronic information. A paper ID issuance button 401 for instructing the issuance of an electronic paper ID, a paper ID issuing device 400 for newly fermenting the paper ID, a storage device 71 for holding the acquired information, and the acquired / held information A communication device 72 that transmits the information to the PC, and a control device 73 that controls these devices.

  As the coordinate input device 74, a digitizer that continuously acquires handwritten coordinates can be used. When using a digitizer, there are known methods such as an electromagnetic induction method and a triangulation method using the principle of an ultrasonic distance meter, both of which were performed on paper with a sensor and a dedicated input pen. It is a device that detects a writing action and measures writing information, in this case, writing coordinates which are coordinates of a written locus. A set of handwritten coordinates measured in this way becomes handwritten information.

  It is desirable that the pen tip of the dedicated input pen is provided with a pen tip that can actually be written on paper so that the writing locus can be written on the paper simultaneously with electronic detection of the writing coordinates.

  The paper ID information reading device 75 is a device that reads and decodes an encoded paper ID printed on paper by a printer, for example, and uses a two-dimensional code reader, a one-dimensional bar code reader, or the like as a publicly known one. Here, when a two-dimensional code reader is used for the paper ID information reading device, for example, when a known QR code (registered trademark) is used for encoding, information of up to 4296 alphanumeric characters is identified. In general, a sufficient capacity can be obtained to identify a document printed by a user.

  A paper ID issue button 401 is a button used when an instruction to issue a new paper ID is given. By pressing the paper ID issue button 401, an instruction to issue a new paper ID is given to the paper ID issuing device 400, and the paper ID issuing device 400 issues a new paper ID. The paper ID newly issued by the paper ID issuing device 400 (hereinafter referred to as device issued paper ID) is issued by the document processing system, printed on the paper surface, and the same as the paper ID read by the paper ID information reading device 75. In addition, it is stored and processed in the storage device 71 together with the handwritten coordinate information.

  The paper ID issuing device 400 is a device that newly generates and issues a device issuing paper ID. As described above, the device issue paper ID is processed in the same manner as the paper ID issued by the document processing system. Here, the paper ID issuing device 400 can also be installed in the writing information input device 60 as software on the control device 73.

The storage device 71 is a hard disk or a non-volatile memory, and a removable memory such as a compact flash (registered trademark) disk can also be used. The writing coordinates and printing condition information acquired by the paper ID information reading device 75 are used. Save electronic document information. At this time, data can be exchanged with the PC by directly connecting the memory, and the communication device 72 can be omitted.
The communication device 72 is a device that transmits stored information, and uses network technologies such as Ethernet (registered trademark) and wireless LAN, USB, Bluetooth, and serial connection technologies.

  The control device 73 is constituted by, for example, a microcomputer, and controls the operation of the above device according to operations described later.

  These devices can be configured integrally, or can be configured separately for each device. Moreover, when it is configured as an integral type, it can be moved to various places and used by being driven by a battery. Since the writing work on the printed paper is not limited to being performed on an office desk, it is desirable that the writing information input device is configured to be integrated and portable.

  FIG. 14 shows an example of the appearance of the writing information input device 60 formed into an integral type. In the illustrated example, the paper ID information reading device 75 (see FIG. 13) is realized as a two-dimensional code reader 62, and a printed document body 65 and a paper ID 63 are printed in advance on the installed paper document. Has been. The coordinate input device 74 is realized by an ultrasonic digitizer, and it is possible to actually add writing information 64 and acquire coordinate data using a dedicated input pen 66.

  Next, processing when the portable digitizer type writing information input device 60 is used will be described with reference to FIG. First, in step S601, the coordinate input device 74 determines whether or not the pen tip of the dedicated input pen 66 is in contact with the paper document (pen down). If the coordinate input device 74 determines that the pen is down (YES in step S601), the process proceeds to step S602. If the coordinate input device 74 determines that the pen is not down (NO in step S601), the process of step S601 is repeated.

  In step S602, the coordinate input device 74 measures coordinates as writing information using the same technique as that of the digitizer.

  On the other hand, in step S603, the paper ID information reading device 75 executes a process of reading the paper ID 63 encoded in the two-dimensional code. Note that the paper ID information reading device 75 reads the encoded paper ID 63 when the coordinate input device 74 is reading coordinates as writing information or when the coordinate input device 74 detects a pen down. Done.

  In step S604, the paper ID information reading device 75 determines whether or not the encoded paper ID 63 can be decoded. If the paper ID information reading device 75 determines that the encoded paper ID 63 can be decoded (YES in step S604), the paper ID information reading device 75 executes the output code, proceeds to step S605, and for some reason, the process of step S603 fails. If it is determined that the encoded paper ID 63 cannot be read or the read encoded paper ID 63 cannot be decoded (NO in step S604), the process advances to step S608.

  When the process proceeds from step S604 to step S605, for example, the control device 73 reads the paper ID read by the paper ID information reading device 75 in step S603 and decoded in step S604 and the writing information read by the coordinate input device 74 in step S602. , And temporarily stored in the storage device 71.

  Proceeding from step S605 to step S606, for example, the control device 73 determines whether or not to end the acquisition process of writing information and the like. If control device 73 determines that the acquisition process of writing information or the like is to be ended (YES in step S606), the process proceeds to step S607, and if it is determined not to end the acquisition process of writing information or the like (NO in step S606), from step S601. Repeat the process.

  Proceeding from step S606 to step S607, for example, the control device 73 transmits the paper ID, writing information, and the like saved in the storage device 71 in step S605 to the PC via the communication device 72.

  On the other hand, when the process proceeds from step S604 to step S608, for example, the control device 73 determines whether or not a device issue paper ID has already been issued. If control device 73 determines that a device issuance ID has already been issued (YES in step S608), control device 73 proceeds to step S609. If control device 73 determines that a device issuance ID has not yet been issued (NO in step S608), step S610 is performed. Proceed to

  For example, the control device 73 refers to tables such as those shown in FIGS. 16 and 17 (to be described later) stored in the storage device 71 and determines whether or not a device issue ID has already been issued.

  When the process proceeds from step S608 to step S609, for example, the control device 73 reads the device issue ID already issued from the storage device 71, and proceeds to step S605.

  When the process proceeds from step S609 to step S605, for example, the control device 73 associates the device issue paper ID read in step S609 with the writing information read by the coordinate input device 74 in step S602, and temporarily stores the storage device. Save to 71. The processing after step S606 is the same as described above.

  On the other hand, when the process proceeds from step S608 to step S610, the paper ID issuing device 400 issues a device issued paper ID in response to a request from the control device 73, for example.

  When the process proceeds from step S610 to step S605, for example, the control device 73 associates the device issue paper ID issued by the paper ID issuing device 400 in step S610 with the writing information read by the coordinate input device 74 in step S602. Temporarily stored in the storage device 71. The processing after step S606 is the same as described above.

  When the paper ID issue button 401 or the like is pressed by the user, an interruption process is executed, and as shown in step S610, the paper ID issuing device 400 issues a device issued paper ID, which will be described later with reference to FIG. And the apparatus issue paper ID is stored in the location of the corresponding paper ID number in the table as shown in FIG.

  Here, examples of information stored in the storage device and transmitted to the PC will be described with reference to FIGS. 16 and 17. FIG. 16 is an example (part 1) of information stored in the storage device.

  The storage device 71 holds a table as shown in FIG. 16, for example. As shown in FIG. 16, the table includes an apparatus identification number, a paper ID number, a writing X coordinate, a writing Y coordinate, and a pen U / D as items. FIG. 16 shows an example of a table when the device issue paper ID is not issued.

  In the apparatus identification number shown in FIG. 16, an identification number for identifying the writing information input apparatus 60 is stored. Also, the paper ID number shown in FIG. 16 stores the paper ID of the paper read by the writing information input device 60. In addition, the X coordinate of the writing coordinate information read by the writing information input device 60 is stored in the writing X coordinate shown in FIG. In addition, the Y coordinate of the writing coordinate information read by the writing information input device 60 is stored in the writing Y coordinate shown in FIG. Also, the pen U / D shown in FIG. 16 stores an identifier (U or D in the example of the figure) for identifying up / down of the dedicated input pen.

  FIG. 17 is an example (part 2) of information stored in the storage device. Note that FIG. 17 shows an example of a table when an apparatus issue paper ID is issued.

  The paper ID number shown in FIG. 17 stores the paper ID of the paper read by the writing information input device 60 or the device issuing paper ID issued by the writing information input device 60.

  For example, the first line of the paper ID number in FIG. 17 stores 0001 and the paper ID of the paper read by the writing information input device 60. In addition, in the second to ninth lines of the paper ID number in FIG. 17, the device issue paper ID (P0001) issued by the writing information input device 60 is stored.

  As described above, the device issuance paper ID is a combination of alphabets and numbers, and the read paper ID and the issued device issuance paper ID are clearly identifiable.

  In addition, the 10th and 11th lines of the paper ID number in FIG. 17 store apparatus issue paper IDs issued by the writing information input device 60 and different from the 2nd to 9th lines. For example, the paper ID issuance button 401 in a state in which the paper ID 63 encoded in the two-dimensional code cannot be read and the paper ID issuing device 400 of the writing information input device 60 has already issued the device paper issuing ID. Is pressed by the user, indicating that a new device paper issue ID has been issued. For example, when using a plurality of unreadable papers that cannot read the paper ID 63 encoded in the two-dimensional code, the user sets a new unreadable paper in the writing information input device 60 and then issues a paper ID issue button. The user presses 401 to issue a new device paper issue ID.

  As shown in FIG. 13, the writing information input device 60 includes a coordinate input device 74 and a paper ID information reading device 75, and these can be read separately, so that the paper to paper Even if the ID cannot be read, the written information can be acquired.

  An appropriate paper ID is issued for the writing information acquired when the paper ID cannot be read by the configuration and processing shown in FIGS. 13 to 17, and the acquired writing information (or writing coordinates) is obtained. It can be used effectively.

  Next, another embodiment of the element D will be described. In this embodiment, an electronic image of a paper document is acquired from a paper document that has been filled in using a scanner or the like, and data is transferred to the element E.

  First, the image input apparatus will be described with reference to FIG. The image input device 88 communicates with a control device 82 for controlling each device in the image input device 88, a storage device 83 for storing programs and images, an externally connected scanner 80 and MFP 86, and the like. A scanner control device 81 for controlling the image, an image processing device 84 for processing an image, and a network control device 85 for controlling communication with an external network.

  An image can be input to the image input device 88 using a directly connected scanner 80 or an MFP 86 that can communicate via the network 87.

  The processing of this image input apparatus will be described using the flowchart of FIG. The flowchart shown in FIG. 19 shows a process of acquiring coordinates using an image input device and passing data to an element K.

  Step S701 is image reading. This is a process of reading an image of a document that the user has completed using the scanner 80 or the MFP 86. The reading condition in this case is, for example, 600 dpi, monochrome binary image. The binarization of an image uses a binarization function that a normal scanner has.

  In step S702, the read image of the paper document is stored as an image file in a predetermined folder of the storage device 83, and enters a queue for next processing. It is the role of the scanner control device 81 to control the read image to be stored as an image file in a predetermined folder. The button of the scanner 80 or MFP 86 is pressed to detect that the image is transferred from them, The transferred image is stored in a predetermined folder of the storage device 83.

  The image processing device 84 monitors a folder in the storage device 83 in which images input from the scanner 80 and the MFP 86 are stored, and performs image erecting processing in step S703 in order from the image at the head of the queue, and step S704. In step S705, the region extraction process is performed, and the decoding process is performed. In step S706, it is determined whether or not decoding is possible. If decoding is possible, a paper ID is obtained, and the process ends. The process is also terminated when the decoding fails.

  The flowchart shown in FIG. 19 shows processing in the information acquisition stage. Further, the paper ID acquired in this way can be converted into a document ID and a processing ID by a management table described later.

  Note that the cue method is used in the process of step S702 when a large number of images are input using an ADF (Auto Document Feeder) or the like and a plurality of images are processed at the same time. The reason is that the load becomes very high and the operation may become unstable, and the processing speed becomes slow.

  In the image erecting process in step S703, since the area is extracted from the image in which the area extracting process in the next step 704 is erecting, an image in which the direction read from the scanner is not known is erecting. It is processing to do.

  Details of the image erecting process will be described with reference to the flowchart of FIG. First, in step S801, OCR processing is performed on the read image, and the result is stored. In the next loop of step S802, step S803, and step S801, the image is rotated by 90 degrees to perform OCR processing, and the results are also saved.

  When the OCR process is performed in the four directions rotated by 90 degrees, in step S804, the image direction is determined using the certainty factor which is one of the scales of the OCR process result. The certainty factor is the certainty of the recognized character, and the certainty factor used for the image direction determination is an average of the certainty factor of each character. It is determined that the image in the direction having the largest average certainty factor is upright.

  When the image erecting process is completed in this manner, an area extraction process for detecting and decoding a two-dimensional code having a paper ID, which is the process in step S704 of FIG. 19, is performed. In the area extraction process, an area including black pixels surrounded by white pixels in the image is detected. Details of this region extraction will be described with reference to the flowchart of FIG.

  First, in the connected black pixel labeling process in step S901, the image is scanned from the upper left origin. When the upper left, upper, and left pixels are white pixels, and the currently focused pixel is a black pixel, a new label is attached to the black pixel. In the case of other pixels, the pixel is labeled with a black pixel on any of the upper left, upper, or left.

  This will be specifically described with reference to FIG. First, it is assumed that all the squares with numbers shown in FIG. 22 are black pixels. Based on this, the above processing will be described using the pixels 90, 91, 92, and 93 in FIG. The scanning order at this time is the order of the pixels 90, 91, 92, and 93.

  First, when attention is paid to the pixel 90, the upper left, upper, and left pixels of the pixel 90 are white pixels, and the currently focused pixel 90 is a black pixel. Therefore, the label “1” is attached to the pixel 90.

  Focusing on the pixel 91 to be scanned next, the upper left and upper pixels are white pixels, but since the left is not a white pixel, the pixel 91 is labeled with a black pixel in any of the upper left, upper, or left. . Therefore, the same label “1” as the pixel 90 is attached to the pixel 91.

  Next, focusing on the pixel 92, the upper left, upper, and left pixels of the pixel 92 are white pixels, and the currently focused pixel 92 is a black pixel, so a new label “2” is attached to the pixel 92. .

  Focusing on the pixel 93 to be scanned next, the upper left and upper pixels are white pixels, but the left is not a white pixel, so the black pixel label on either the upper left, upper or left is currently focused. The pixel 93 is attached. Therefore, the same label “2” as the pixel 92 is attached to the pixel 93.

  In this way, the same processing is performed for the following pixels.

  In the circumscribed rectangular coordinate detection process of the connected black pixels performed in the next step S902, circumscribed rectangular coordinates surrounding the black pixel group having the same label are detected. FIG. 23 shows this. As shown in FIG. 23, a circumscribed rectangle 94 of the black pixel group labeled “1” and a circumscribed rectangle 95 of the black pixel group labeled “2” are detected.

  The next step S903 is a process of integrating circumscribed rectangles that overlap and touch, and is a process of integrating circumscribed rectangles that overlap or touch each circumscribed rectangle to form a new circumscribed rectangle. This is the circumscribed rectangle 96 in FIG.

  In step S904, a circumscribed rectangle having a size within a predetermined range is extracted in order to exclude a circumscribed rectangle having a size that is impossible as the size of the two-dimensional code. As described above, since an area including black pixels surrounded by white is detected, the image processing device 84 can perform decoding on all the detected rectangular areas.

  If the position of the two-dimensional code is known in advance, the decoding may be performed only on the rectangular area at the predetermined position. If the position of the two-dimensional code is not known depending on the layout of the paper document, the detected rectangular area Decoding is performed for all, and the decoded one is detected as a paper ID. The details of decoding will be described in the explanation of the next element E.

  If the decoding is successful and the paper ID is obtained, the device type, paper ID, and writing information are transmitted to the element K. In this case, the information is transmitted to the element K as data in XML (eXtensible Markup Language) format.

  In addition to the flatbed scanner, the image pickup apparatus such as a digital camera or a document camera can be used as the scanner used here.

  Next, the element E that decodes the paper ID will be described. First, as an explanation of the element E, a barcode reader that reads a two-dimensional code will be described. As shown in FIG. 25, the barcode reader includes a vertex candidate detection unit 11, a code frame detection unit 12, a projective transformation coefficient calculation unit 13, a data sampling unit 14, an error correction unit 15, and a format conversion. Part 16. Further, as shown in the above-described two-dimensional code reader 62 in FIG. 14, the barcode reader reads a two-dimensional code from diagonally above.

  The vertex candidate detection unit 11 detects a vertex candidate of the two-dimensional code. The code frame detection unit 12 detects a code frame to be described later based on the vertex candidates. By detecting the code frame, the vertex candidate is determined as a true vertex.

  The projective transformation coefficient calculation unit 13 creates the two-dimensional code created from the coordinates of each vertex of the code frame detected by the code frame detection unit 12 and the specified coordinates of each vertex of the code frame when the two-dimensional code is created. A projective transformation coefficient, which is a coefficient for mapping the specified center coordinates of each cell and the center of each cell of the read two-dimensional code, is obtained.

  The data sampling unit 14 samples the data of the two-dimensional code using the projection transformation coefficient obtained by the projection transformation coefficient calculation unit 13. The error correction unit 15 determines whether the data read by the data sampling unit 14 is an error. If there is no error or error correction is possible, the format conversion unit 16 converts the integer type 56-bit data other than the error correction code. Output to. The format converter 16 converts the data into a numeric character string and outputs it.

  Next, details of processing of the vertex candidate detection unit 11 will be described. FIG. 26 is a diagram illustrating processing for detecting vertex candidates of an input image. As shown in FIG. 26, the vertex is detected by scanning the input image in the direction indicated by the arrow. More specifically, oblique scanning is performed from the four corners of the input image, black pixels are detected, and the detected black pixels are set as A, B, C, and D.

  Next, processing for detecting whether A, B, C, and D are vertex candidates will be described with reference to FIG. FIG. 27 is an enlarged view of the two-dimensional code. For this two-dimensional code, the vertex candidate detection unit 11 determines the number of pixels on one side of the cell from A, B, C, D to the direction of the arrow, for example, 45 degrees lower right for A and 45 degrees lower left for B. The pixels are tracked by the number of pixels of 1 / √2 to determine whether they are all black pixels. If all of them are black pixels, the vertex candidate detection unit 11 detects A, B, C, and D as vertex candidates, and moves the processing to the code frame detection unit 12.

  Next, the code frame detection unit 12 will be described. As shown in FIG. 28, the code frame detection unit 12 passes through black frame determination lines 76, 77, 78, and 79 that connect the end points tracked by the number of pixels of 1 / √2 from the vertex candidates A, B, C, and D. If the ratio of black pixels of pixels is 80% or more for every straight line in each straight line, it is determined that it is a code frame, and vertex candidates A, B, C, and D are designated as vertices A, B, and C of the two-dimensional code. , D is confirmed. At this time, the coordinates of the vertices A, B, C, and D are also detected.

  Next, the projective transformation coefficient calculation unit 13 will be described. The projective transformation coefficient calculation unit 13 creates the two-dimensional code created from the coordinates of each vertex of the code frame detected by the code frame detection unit 12 and the specified coordinates of each vertex of the code frame when the two-dimensional code is created. A projective transformation coefficient, which is a coefficient for mapping the specified center coordinates of each cell and the center of each cell of the read two-dimensional code, is obtained. A method for obtaining the projective transformation coefficient will be described later.

  Next, the data sampling unit 14 will be described. The data sampling unit 14 receives the specified center coordinates and projective transformation coefficients of each cell when the two-dimensional code and the two-dimensional code are created. The data sampling unit 14 performs projective transformation of the specified central coordinates of each cell of the created two-dimensional code using the projection transformation coefficient obtained by the projection transformation coefficient calculation unit 13, so that each cell of the read two-dimensional code is read. Find the center coordinates.

  The data sampling unit 14 uses the obtained center coordinates as the sampling center coordinates of the image, and sets the data as “1” if the number of black pixels of 3 × 3 pixels centering on the coordinates exceeds the number of white pixels, and as “0” otherwise. Is read. The read 72-bit data is input and arranged in the error correction unit 15, and determination of error correction is performed. If there is no error or error correction is possible, the error correction unit 15 outputs integer type 56-bit data other than the error correction code to the format conversion unit 16. The format conversion unit 16 restores the numeric character string by converting the data into a numeric character string and outputting it.

  The above-described reading of the two-dimensional code may be performed by software. FIG. 29 shows a flowchart of the processing. In step S1001, a two-dimensional code obtained by imaging the two-dimensional code is input from obliquely above. In step S1002, a vertex candidate of the two-dimensional code is detected.

  In step S1002, diagonal scanning is performed from the four corners of the image as shown in FIG. 26, and black pixels are detected. Let the detected black pixels be A, B, C, and D. Further, in step S1002, as shown in FIG. 27, the direction of the arrow from A, B, C, D, for example, 45 degrees on the lower right for A and 45 degrees on the lower left for B, the number of pixels on one side of the cell is 1 Pixels are tracked by the number of pixels of / √2, and it is determined whether or not they are all black pixels. If they are all black pixels, A, B, C, and D are detected as vertex candidates, and the process proceeds to step S1003.

  In step S1003, as shown in FIG. 28, all the black pixel ratios of pixels passing through the black frame determination lines 52, 53, 54, and 55 connecting the end points tracked from the vertex candidates A, B, C, and D If there is 80% or more of each straight line, it is determined as a code frame. Then, the vertex candidates A, B, C, and D are determined as the vertices A, B, C, and D of the two-dimensional code. At this time, the coordinates of the vertices A, B, C, and D are also detected.

  If the code frame cannot be detected in step S1003, the process branches to the end in the branch process of step S1004, and the reading ends. If a code frame is detected, the process proceeds to the next step S1005.

  In step S1005, the specified center coordinates of each cell of the created two-dimensional code from the coordinates of each vertex of the code frame detected in step S1003 and the specified coordinates of each vertex of the code frame when the two-dimensional code is created. Then, a projective transformation coefficient that is a coefficient for mapping the center of each cell of the read two-dimensional code is calculated.

  In the next step S1006, data sampling is performed. Specifically, the two-dimensional code, the projective transformation coefficient, and the specified center coordinates of each cell of the created two-dimensional code are input, and each cell of the created two-dimensional code is created using the projective transformation coefficient obtained in step S1005. By performing projective transformation of the prescribed center coordinates, the center coordinates of each cell of the read two-dimensional code are obtained.

  Then, the obtained center coordinates are set as the sampling center coordinates of the image, and data is read as ‘1’ if the number of black pixels of 3 × 3 pixels centering on the coordinates exceeds the number of white pixels, and ‘0’ otherwise. The read 72-bit data is subjected to error correction determination in step S1007. If there is no error or error correction is possible, the integer type 56-bit data other than the error correction code is converted into a numeric character string in step S1008, and a numeric character string is output in step S1009. The

  Next, how to obtain the projective transformation coefficient will be described. Projective transformation is transformation when a figure / object in a three-dimensional space is displayed on a two-dimensional plane / screen. This is a technique for converting the coordinates of an object in a three-dimensional space into coordinates on a two-dimensional plane, and is widely known as a three-dimensional image processing technique.

  In order to perform such projection conversion accurately, it is necessary to clarify the position of the imaging system, optical characteristics, and the like. However, considering the compatibility with various devices, it is difficult to specify and accurately determine the positions of the imaging systems of all the various devices.

  On the other hand, it is not always necessary to perform an accurate projective transformation in order to exhibit the effect of being easily read by an optical system that captures an image from an oblique direction. For example, a trapezoidal or various density code can be used to facilitate reading with an oblique optical system, instead of a conventional rectangular and two-dimensional code expressed by uniform density cells. it can.

  A simple example for realizing such trapezoidal codes and various cell sizes will be described with reference to FIG. In the optical system as shown in FIG. 30, the read image is transformed into a trapezoidal figure by the projective transformation.

  At this time, the ratio (X1 / X3) between the long side and the short side of the trapezoid is equal to the reciprocal (L3 / L1) of the ratio of the distance from the image sensor to each area of the code. In this embodiment, a two-dimensional code having a cell shape and size that can cancel the above-described projective transformation is created instead of a two-dimensional code that is normally rectangular and the size of each cell is uniform.

  The cell size is determined at a constant magnification for each line of the two-dimensional code. The magnification of this deformation is different in the distance from the imaging surface even in one line of the two-dimensional code. For example, the magnification at the middle position of one line is converted at the same magnification from the upper part to the lower part of one line. . By this operation, a two-dimensional code having a stepped cell boundary as shown in FIG. 31 or 32 is obtained. Alternatively, a two-dimensional code as shown in FIG. 33 may be created by strictly performing projective transformation calculation. 31, 32, and 33 will be described in detail in the description of the element G.

  Next, the projective transformation will be described with reference to FIG. FIG. 34 shows a two-dimensional code 67 schematically showing the read two-dimensional code and a two-dimensional code 68 schematically showing the two-dimensional code generated electronically. Further, As, Bs, Cs, and Ds of the two-dimensional code 67 and Ar, Br, Cr, and Dr of the two-dimensional code 68 are vertices, and xs1 and yr2 in parentheses represent coordinates. Psk and Prk represent the center coordinates of the cell.

  As, Bs, Cs, and Ds of the two-dimensional code 67 and the vertices of Ar, Br, Cr, and Dr of the two-dimensional code 68 satisfy the mathematical formula shown in FIG. These mathematical formulas (1) and (2) represent conversion formulas from coordinates for determining the coordinates of the two-dimensional code such as the two-dimensional code 68 to coordinates for determining the coordinates of the two-dimensional code such as the two-dimensional code 67. , Ar, Br, Cr, Dr to As, Bs, Cs, Ds.

  Expression (1) is an expression related to the X coordinate of the vertex, Expression (2) is an expression related to the Y coordinate of the vertex, and the subscript i in Expressions (1) and (2) moves from 1 to 4. In these mathematical formulas, b1 to b8 are conversion parameters, which are unknown numbers. These conversion parameters are obtained by solving an eight-way linear simultaneous equation obtained by substituting the coordinate values of Ar to Dr and As to Ds into the equation. When b1 to b8 are obtained, the center coordinate Prk of each cell of the two-dimensional code generated electronically can be converted to obtain the sampling center coordinate Psk of the two-dimensional code.

  Next, the element F that encodes the paper ID will be described. A two-dimensional code creation device corresponding to the element F while creating a two-dimensional code corresponding to the element G will be described with reference to FIG.

  The two-dimensional code creation device includes a format conversion unit 20, an error correction unit 21, and a two-dimensional code creation unit 23.

  The format conversion unit 20 converts the input numeric character string into integer 56-bit data that is normally handled in the computer.

  The error correction unit 21 adds 16 bits of an error correction code to the data converted into the integer type 56-bit data.

  A Reed-Solomon code is used as this error correction code. This Reed-Solomon code is a powerful error correction method capable of correcting an error in byte units, and can correct an error of half or less of the error correction code length. The details of Reed-Solomon error correction codes are described in many books such as Shogodo “Code Theory (Computer Fundamental Course 18)” by Miyagawa, Iwabuchi, and Imai.

  In this embodiment, since the error correction code length is 2 bytes, 1-byte error correction is possible.

  The two-dimensional code creation unit 23 assigns the data and the error correction code data to each cell of the two-dimensional code as shown in FIG. 37 and creates a two-dimensional code. The numbers shown in each cell in FIG. 37 are numbers to which arrangement positions are assigned.

  Data and error correction code data are assigned to cells in which integer 56-bit data is 1 to 56 cells and error correction code data 16 bits is 57 to 72 cells. In creating a two-dimensional code, specified vertex coordinates and cell center coordinates are used. The specified coordinates are also used when reading a two-dimensional code.

  The creation of the two-dimensional code may be performed by software, and FIG. 38 shows a flowchart showing the processing.

  First, in step S1101, a numeric character string is input. In step S1102, the format of the numeric character string is converted into integer 56-bit data that is normally handled in the computer. In step S1103, 16-bit error correction code is created and added to the data converted to integer type data. As this error correction code, a Reed-Solomon code is used as before. The integer type data and error correction code data created in this way are assigned to each cell of the two-dimensional code as shown in FIGS. 37 and 39 in step S1104, and a two-dimensional code is created. 37 and 39 will be described in detail in the description of the element G.

  As in the previous case, data is assigned to cells in which integer type 56-bit data is 1 to 56 cells and error correction code data 16 bits are 57 to 72 cells. The specified vertex coordinates and cell center coordinates are used when creating a two-dimensional code. The specified coordinates are also used when reading a two-dimensional code.

  Next, the element G that is a paper ID will be described. First, the two-dimensional code shown in FIG. 31 will be described. As shown in FIG. 31, the two-dimensional code is surrounded by a black frame, and the cell which is the smallest unit and information area representing 1-bit information in white or black is as shown in FIG. 72 are arranged. Therefore, this two-dimensional code can express 72-bit information.

  When this two-dimensional code is read obliquely from above, the two-dimensional code obtained by the barcode reader is reduced to a trapezoidal shape by reducing the lower part where the cells are large. Although the two-dimensional code is distorted in this way, each cell in the two-dimensional code photographed by the barcode reader occupies a plurality of pixels of the image sensor, and the area thereof is approximately equal regardless of the position of the cell.

  The image sensor of the barcode reader provided to read the two-dimensional code obliquely from above with the two-dimensional code in which the size of the upper cell is small and the size of the lower cell is large is Stable shooting of black and white information becomes possible.

  Another example of the two-dimensional code is a trapezoidal code (plan view) shown in FIG. This trapezoidal code is a two-dimensional code in which the size of the cell increases in accordance with the distance between the imaging element and each cell when the barcode reader reads from obliquely above.

  In the case of this trapezoidal code, 12 cells are arranged in each row and there are 6 rows, so the total number of cells is 72. Since the total number of cells is equal to the total number of cells of the two-dimensional code in FIG. 31, the number of bits that can be expressed by the trapezoid code is equal to the number of bits that can be expressed by the two-dimensional code of FIG. Incidentally, the 72-bit data is arranged as shown in FIG. 39 showing the arrangement of the data.

  As another example of the two-dimensional code, a two-dimensional code obtained by projective transformation of a rectangular two-dimensional code 57 as shown in FIG. 33 and transformed into a trapezoidal two-dimensional code 58 can be used. In this case, an image of the two-dimensional code obtained when the image is taken obliquely from above is obtained close to the two-dimensional code 57. The amount of information that can be expressed by the two-dimensional code 58 is 72 bits.

  One thing common to the three two-dimensional codes described above is that they are horizontally long. The reason for this is that if the cell is vertically long, the length of the cell increases in length, the overall size of the two-dimensional code becomes very large, and the advantage of the two-dimensional code that a large amount of data can be expressed with a small size is lost. Because.

  Further, when viewed from the bar code reader, the distance from the two-dimensional code is larger in the horizontal direction than in the vertical direction, so that the cell far from the bar code reader has a large aspect ratio. Is appropriate. Therefore, in the example of FIGS. 32 and 33, the change in the vertical length is made larger than the change in the horizontal length of the cell, so that the two-dimensional code photographed by the barcode reader has a shape close to a square. .

  Next, the element H that associates the process ID with the external process program and manages the process ID will be described. FIG. 40 is an example of a management table used in element H.

  The element H that associates the process ID with the external process program and manages the process ID requests a process ID from another element means to a certain external process program (registration request). At least the PC on which the element H is mounted The information that can uniquely define the external processing program is received, and an ID that is unique in the management table is assigned to the information, and the external processing program information is stored in the management table.

  In FIG. 40, each row as a group as shown in a row 155 is a unit of external processing program information corresponding to the processing ID, and columns 151, 152, 153, and 154 are registration elements.

  Among these, the assigned processing ID is stored in the column 151. The column 152 stores information for uniquely specifying an external processing program to be processed. In the first row of column 152, the file path of the external processing program is shown. Thereby, the program to be processed is uniquely determined. In the second row of the column 152, a path name indicating the folder name in which the job is stored is designated. Here, it is assumed that the external processing program processes a file in one job folder, and the correspondence between the processing IDs in the column 151 and the external processing program is related by defining the correspondence one-to-one.

  In the example of the second line in FIG. 40, a program for processing a standard document that receives writing information from a paper document on which an electronic document with a process ID 0001 of * .doc is printed as a job in a folder of c: \ JobFolder \ WordPrint Is registered. In the third row of column 152, a program on another computer is designated as the URL of the Web service, and is associated with the process ID.

  In addition, in FIG. 40, there is a column 153 which is attribute information indicating what kind of electronic document print information can be handled by the external processing program. In column 154, the description of the external processing program is written in characters. Any number of attribute information regarding external processing programs such as columns 153 and 154 may be provided in addition to columns 153 and 154.

  When a process ID is specified and management information about an external process program is requested (reference request), element H searches for the corresponding ID from the ID in column 151 in FIG. 40, and at least the corresponding ID registration element The information for uniquely specifying the folder path name in the column 152 is passed to the request source. At this time, the attribute information after column 153 may be passed at the same time.

  Further, when the element H is a program, the contents of the management table of FIG. 40 may be held in a memory in which the program operates, or may be saved as a file system file at a certain timing. Some are stored as electronic information in a database system. Alternatively, the process ID and attribute information related to the process ID are stored as one record, the process ID is stored as a key, and the external process program information is stored or retrieved to associate the process ID with the electronic program and manage it. Good.

  As described above, the association information between the managed process ID and the external process program is stored not only in the memory performing the program operation but also in a non-volatile storage device such as a file on the hard disk. Even if the device is stopped once, it becomes a system that can use the association information managed until then.

  Further, since the process ID and the directory name processed by the corresponding processing program are stored and managed in the element H, the management information in the element H up to that time can be obtained even if the processing program name or the processing program itself is changed. It becomes a system that can be handled without change.

  The element H exists in a device independent of the device of the other element, and may be in a form connected to the device of the other element via a network. At this time, in particular, the element H exists in the form of RPC (Remote Procedure Call), Web service, and the like, and accepts registration requests and reference requests from other elements via the network.

In this case, the association information between the managed process ID and the external processing program is stored in a network accessible database as a non-volatile storage device, so that the association information can be registered and referred to by the system in a unified manner. In this system, a plurality of elements H can be present.
Furthermore, since it is possible to designate an external processing program in another device on the network, the system can be installed with each external processing program to be registered on the host device meeting the operating conditions of the program.

  In addition, the only element H device on the system is connected to the other element device via the network, and the process ID and the external processing program are associated with each other via the network and managed. Thus, the system can register and refer to the association information uniformly from the devices of other elements that are discrete in the network.

  Next, the element I for editing / managing form layout information and processing methods will be described. The element I is a system that reads a paper document, converts the recognized writing information into an information table, which will be described later, based on the layout and processing information defined in the paper document, and stores the information.

  This will be specifically described with reference to FIGS. 41 and 42. FIG. 41 shows what is written in the unsubscription / membership application form described in FIG. As shown in FIG. 41, the withdrawal / admission application form includes an entry part A170, an entry part B171, an entry part C172, an entry part D173, and an entry part E174 as entry parts. In addition, in the unsubscription / enrollment application form, a name label 175, other member numbers, request items, and comments are written as labels.

  FIG. 42 shows an information table. The information table is a table composed of registration information and processing information. The registration information includes an ID, a name, and a membership number, and the processing information includes a name, a membership number, processing, and a comment.

  In this way, the information table records information written on the withdrawal / enrollment application form.

  The written information written in the entry part A170, entry part B171, entry part E174 of the unsubscription / membership application form is recorded in the name, member number, and comment in the information table shown in FIG. In the writing information written in the entry part D173, “delete” or “registration” is recorded in the process according to the checked entry part.

  Next, a form creation program will be described. In the following description, a file defining form layout information and a processing method is called a form definition body, and software for editing the form definition body is called a form creation program.

  A specific apparatus example will be described again with reference to FIG. A form creation program is executed on the form creation PC 101. In the data server 106, a database program operates. In this database program, input / output management of form definition bodies generated by the form creation program and input / output of information tables used in form processing are performed.

  The form creation program is a program that defines the form layout and form processing method as shown in FIG. 41 as a form structure as shown in FIG. 43, and creates and edits the contents. In the form structure shown in FIG. 43, the entry part A170 is sectioned into a property group for each semantic unit, the layout information of the form is the element label <Layout>, the recognition information is the element label <Input>, and the storage destination information Are managed by element labels <Registration>, and the contents thereof are described as XML properties.

  The form creation program has a GUI as shown in FIG. This GUI includes a layout area 155 and a tool box 156. The tool box 156 includes a label tool 151, a text box 152, a check box 153, and a barcode 154.

  A form creator can create a form by arranging labels and text boxes in the layout area 155 using the tool box 156.

  The label tool 151 creates a label in the layout area 155. The text box 152 creates a text box in the layout area 155. The check box 153 is for creating a check box in the layout area 155. The barcode 154 creates a barcode in the layout area 155.

  In this way, elements corresponding to the contents to be arranged from the tool box 156 are arranged in the layout area 155, and the attributes (properties) are set on the screen. The elements referred to here correspond to the purpose of use such as the label tool 151, the text box 152, the check box 153, and the barcode 154.

  For example, as shown in FIG. 45, a field for writing a name is created using a text box 152.

  Each element has a property group as shown in FIG. 46, and these properties define the contents actually displayed on the form and its processing method. This property group will be described. The property group shown in FIG. 46 is an example of the property group corresponding to the name label 175 and the entry part A170 of FIG. The property group is roughly divided into layout information (container start to border) 176, recognition information (input to recognition result) 177, and storage destination information (registration server to registration record) 178.

  The layout information 176 manages the position and size of elements, and the state of characters and frame lines displayed there. The recognition information 177 manages the information conversion manner of the content handwritten on the element at the time of form processing. Here, various information used for character recognition is managed. The storage destination information 178 manages the storage destination of the result converted by the recognition information 177 used at the time of form processing.

  The element with ID 0001 shown in FIG. 46 is a name label element because the “type” is “Label”. This name label element has the name “name” displayed without a border because “border” is “none”, and “input” is “impossible”. There is no special processing when written on the screen, and since the “conversion” is “none”, there is no conversion for the input character. Further, since the storage destination information 178 is blank, data is not stored.

  Since the “type” of the entry A170 with ID 0002 is “Textbox”, the text to be displayed is not a “character” blank, and the “border” is “ Since it is “enclosed”, it is displayed with an enclosing (frame). When handwritten, since “input” is “possible”, there is some processing, and character recognition “Japanese”, “handwritten” expressed by “recognition knowledge” 1 to 3, This is done as information conversion of "first and last name". The obtained recognition result is stored in a location described in the storage destination information 178.

  As described above, a form structure and a processing method are defined by providing and managing such a property group in a form structure.

  Next, the element J that decomposes the writing information into data and stores it from the layout information and processing method of the form will be described. When a scanner is used as the element D, the description will be made using the withdrawal / enrollment application form shown in FIG. 47. The element J takes the difference between the read form image 180 read and the unwritten form image 181 that has not been written. The writing image 182 is obtained, and is decomposed into each element such as a name and a membership number and stored.

  When a coordinate input device is used as the element D, a written coordinate string, that is, written information can be obtained as it is, so that it is decomposed into each element such as a name and a membership number and stored. In the case of atypical processing, there is no concept of a form, so it is saved as a whole without being decomposed into each element.

  When the scanner is used as the element D, as described above, the difference between the image of the unfilled paper document and the image of the filled paper document is taken and only the added portion is taken out.

  When a coordinate input device is used as the element D, the written data is obtained as it is.

  This process will be described with reference to the flowchart of FIG. In addition, this flowchart has shown the process of the handwriting process program which performs the process which takes the difference mentioned above.

  Step S1201 is form recognition. Step S1202 is generation of an image of a blank form. This process is a process for generating an unfilled form image from the form definition body called in step S1201.

  Step S1203 is the alignment of the blank form image and the filled form image. This process is a process of matching the image of the filled form with the image of the unfilled form using the timing mark. The position / shape information of the timing mark is acquired from the form definition body. If no timing mark exists, this step is not performed.

  Step S1204 is generation of a written image. This process is a process for obtaining the difference between the blank form image and the filled form image.

  Processing from the next step S1205 to step S1208 is performed for each element indicated in the form definition body. First, step S1205 is generation of a partial image corresponding to each element. This process is performed in accordance with element properties (layout information), and is a process for generating partial images such as “Taro Yamada” and “56-381” in FIG. 47, for example.

  Step S1206 is character recognition of the partial image. This processing is performed according to the element property (recognition information). Step S1207 is processing for storing the result of converting information from partial images to characters by character recognition.

  In the next step S1208, it is determined whether or not all elements have been processed. If there is an element that has not yet been processed, the process proceeds to step S1205, and all elements have been processed. ,finish.

  Next, the element K for converting the paper ID into the document ID and the processing method will be described. FIG. 49 shows a schematic diagram of the processing procedure of the element K for converting the paper ID into the document ID and the processing ID. In FIG. 49, with the element K as the center, the rectangular figure indicates each element, the balloon indicates the contents of the data or request, the arrow indicates the direction of the data or request, and the steps on the arrow indicate the order.

  First, in step S1301, the element K acquires a paper ID and writing information from the D-PAD. Alternatively, the element K reads a paper document written by the scanner or the scanner unit of the MFP, and acquires a paper ID and an image.

  In the next step S1302, the paper ID collating apparatus reads the paper ID acquired by the element K in step S1301. Next, in step S1302, the paper ID collation apparatus requests the element B to collate the paper ID read in step S1301 with the existing paper ID managed in the element B via the element K.

  Here, when receiving a response from the element B that the paper ID read in step S1302 is already managed in the element B, the element K executes processing from step S1306 described later.

  On the other hand, when the response indicating that the paper ID read in step S1301 is not managed in element B is received from element B, the paper ID collating apparatus does not manage the paper ID read in step S1301 in element B. The paper ID read in step S1302 is transmitted to the paper ID conversion device via element K, and a paper ID conversion request is made (step S1304).

  The paper ID conversion device refers to the paper ID (device issued paper ID) received in step S1304 with reference to the paper ID conversion table as shown in FIG. Convert and pass to element K (step S1305). In the paper ID conversion table shown in FIG. 50, the device-issued paper ID number and the paper ID number managed in element B are associated with each other.

  In the next step S1306, the element K sends a paper ID to the element B and requests management information related to the corresponding paper document. As a result, in step S1307, the element K acquires information for uniquely specifying an electronic document that is an ID registration element corresponding to the paper document, a processing ID, and the like.

  Next, the element K sends its processing ID to the element H in step S1308, and requests management information of the processing program related to the paper document. As a result, in step S1309, the element K acquires information for uniquely specifying the folder path name registered with the corresponding identifier from the element H.

  In step S1310, the element K stores all the information acquired through the D-PAD or the image input device such as a scanner or MFP, the element B, and the element H in a file, and the folder path obtained by the above processing. Save as a file with the name.

  Thereby, in step S1311, the element K delivers the job from the form layout display and processing method, which is the next stage processing, to the element J or the atypical processing program that decomposes and saves the data into data.

  Note that, as shown in FIG. 17, the paper ID issued by the paper ID issuing device 400 (device issued paper ID) is clearly different from the paper ID read from the normal paper, so the processing in steps S1302 and S1303 is performed. If the element K determines that the paper ID acquired by the element K in step S1301 is the device-issued paper ID, the processing from step S1304 may be performed. However, for the sake of simplicity, the following description will be made assuming that the paper ID matching process is performed.

  Here, in the case of the system configuration as shown in FIG. 1, the paper ID collating device and the paper ID converting device shown in FIG. 49 are mounted on the form processing PC 109, for example. The paper ID collating device and the paper ID converting device may be realized as software or hardware, like the elements.

  An example of the paper ID collation / conversion process will be described below with reference to FIG. FIG. 51 is a flowchart showing a paper ID collation / conversion process.

  In step S1501, the paper ID collating device reads the paper ID from the element K.

  Progressing to step S1502 following step S1501, the paper ID collating apparatus requests the element B to collate the paper ID read in step S1501 with the existing paper ID managed in the element B via the element K. .

  Progressing to step S1503 following step S1502, the paper ID collating apparatus determines whether the paper ID requested for collation in step S1502 is a paper ID managed in element B based on the collation response from element B. judge. If the paper ID collating apparatus determines that the paper ID requested for collation in step S1502 is the paper ID managed in element B (YES in step S1503), the paper ID collating apparatus proceeds to step S1505, and requested collation in step S1502. If it is determined that the paper ID is not the paper ID managed in element B (NO in step S1503), the process advances to step S1504.

  In step S1504, in response to a request from the paper ID verification device, the paper ID conversion device uses the paper ID conversion table shown in FIG. 50 to change the device issued paper ID to the paper ID managed in the element B. Convert.

  In step S1505, the element K sends a paper ID to the element B, and requests management information regarding the corresponding paper document. The element K sends, for example, the paper ID read in step S1501 or the paper ID converted by the paper ID conversion device in step S1504 to the element B, and requests management information regarding the corresponding paper document.

  As described above, according to the present invention, predetermined processing is executed on a paper document handwritten on a standard or atypical paper document, and writing information acquired without reading a paper ID is effectively used. can do.

  The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments, and various modifications can be made within the scope of the gist of the present invention described in the claims.・ Change is possible.

It is a figure which shows the whole block diagram of a document processing system. It is a figure which shows the hardware constitutions of PC. It is a figure which shows the elements AJ which comprise a document processing system. 3 is a flowchart illustrating a first example of an element A. It is a flowchart which shows the 2nd Example of the element A. It is a flowchart which shows the 3rd Example of the element A. It is a flowchart which shows the 4th Example of the element A. It is a flowchart which shows the 5th Example of the element A. It is a figure which shows a management table. It is a figure which shows a management table. It is a figure which shows the example of a paper document. It is a figure which shows the example of a paper document. It is a figure which shows a writing information input device. It is a figure which shows the example of an external appearance of a writing information input device. It is a flowchart which shows the process of a writing information input device. Example of information stored in the storage device (part 1) Example of information stored in storage device (part 2) It is a figure which shows an image input device. It is a flowchart which shows the process of an image input device. It is a flowchart which shows an image erecting process. It is a flowchart which shows an area | region extraction process. It is a figure which shows a mode that a pixel is labeled. It is a figure which shows a circumscribed rectangular coordinate detection process. It is a figure which shows the circumscribed rectangle which integrated the circumscribed rectangles. It is a figure which shows each part which comprises a barcode reader. It is a figure which shows a vertex pixel detection. It is a figure which shows vertex candidate detection. It is a figure which shows code frame detection. It is a flowchart which shows a two-dimensional code reading process. It is a figure which shows a mode that it reads from the diagonal direction. It is a figure which shows a two-dimensional code. It is a figure which shows a two-dimensional code. It is a figure which shows projective transformation. It is a figure which shows the two-dimensional code read with the two-dimensional code. It is a figure which shows the numerical formula which calculates | requires a conversion parameter. It is a figure which shows each part which comprises a two-dimensional code production apparatus. It is a figure which shows the arrangement position of data. It is a flowchart which shows a two-dimensional code creation process. It is a figure which shows the arrangement position of data. It is a figure which shows a management table. It is a figure which shows a form. It is a figure which shows an information table. It is a figure which shows a form structure. It is a figure which shows the user interface of a form creation program. It is a figure which shows a mode that a text box is created. It is a figure which shows a property group. It is a figure which shows a mode that writing information is decomposed | disassembled into data. It is a flowchart which shows the process which decomposes | disassembles writing information into data and preserve | saves it. It is a figure which shows the relationship between the element K and another element. It is a figure which shows a paper ID conversion table. It is a flowchart which shows a paper ID collation and conversion process. It is a figure which shows the structural example of an image acquisition apparatus. It is a figure which shows the detailed structural example of an imaging part, a drive part, and a control part. It is a figure which shows the structural example of an imaging part. It is a figure which shows the example of a paper document. It is a flowchart which shows the process of an image acquisition apparatus. It is a figure which shows the drive to an up-down direction of an imaging part. It is a figure which shows a divided image. It is a figure which shows the joined image. It is a figure which shows the image which performed correction of tilt distortion. It is a figure which shows the structural example of an image acquisition apparatus. It is a figure which shows the structural example of an image acquisition apparatus. It is a figure which shows the structural example of an image acquisition apparatus. It is a figure which shows the structural example of an image acquisition apparatus. It is a figure which shows the structural example of an image acquisition apparatus. It is a figure which shows the structural example of an image acquisition apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Vertex candidate detection part 12 Code frame detection part 13 Projection transformation coefficient calculation part 14 Data sampling part 15 Error correction part 16, 20 Format conversion part 21 Error correction part 23 Two-dimensional code creation part 31 Input device 32 Display device 33 Drive device 34 Recording medium 35 Auxiliary storage device 36 Memory device 37 Arithmetic processing device 38 Interface device 40, 47 Unsubscription / enrollment registration form 41, 42, 43, 44, 48, 49, 50, 51 Timing mark 45, 57, 58, 67, 68 290 Two-dimensional code 46 Content 52 Part of content 53 Enlarged view of part of content 54 Identifier 55 Code frame / alignment dot 56 Data dot 59 Paper document example 60 Writing information input device 63 Paper ID
64 Written information 65 Document body 66 Dedicated input pen 71 Storage device 72 Communication device 73 Control device 74 Coordinate input device 75 Paper ID information reading device 76, 77, 78, 79 Black frame determination line 80 Scanner 81 Scanner control device 82 Control device 83 Storage Device 84 Image processing device 85 Network control device 86 MFP
87 Network 88 Image input device 90, 91, 92, 93 Pixel 94, 95, 96 circumscribed rectangle 100 Storage device 101 Form creation PC
102 Printing device 103 Form processing PC
104 D-PAD
105 Scanner 106 Data Server 107 Network 108 Form Generation Device 109 Form Processing Device 110 User 111 External Processing Program 112 Storage 121 Element A
122 Element B
123 Element C
124 Element D
125 Element E
126 Element F
127 Element G
128 Element H
129 Element I
130 Element J
131 Element K
141, 142, 143, 144, 146, 151, 152, 153, 154 columns 145, 155 rows 170 entry A
171 entry B
172 entry C
173 entry D
174 entry E
175 Name label 176 Layout information 177 Recognition information 178 Storage destination information 180 Completed form image 181 Unfilled form image 182 Written image 201, 310 Imaging unit 202 Drive unit 203 Column 204 Interface 205 Control unit 206 Support stand 207 Operation switch 208 Paper document 210 CPU
211 System controller 212 SDRAM
213 PCI bus 214 PCMCIA
215 I / O input / output device 216 Hard disk 217 IDE
218 PCI / ISA bridge IDE USB conversion interface 219, 239 USB
220 ISA bus 221, 237 I / O controller 222, 238 Serial 234 Parallel 235 LAN interface 236 MPU
240 memory 241 CDS
242 A / D converter 243 Drive circuit 244 Rotary encoder X
255 Stepping motor X
256 Stepping motor Y
257 Rotary encoder Y
258 Detection circuit 261 I / O device 262 Image sensor 263 Focus lens 264 Shutter 265 Aperture mechanism 266 Zoom lens 267, 268 Fixed lens 280 TG
281 IPP
301, 302 area 310 imaging unit 311, 314 data identification information 312 paper ID information reading unit 313 underlay 315 support base 316 projection unit 317 projection area 318 portable information terminal 400 paper ID issuing device 401 paper ID issuing button 401

Claims (10)

Coordinate input means for detecting writing information on a paper document; paper ID information reading means for recognizing and reading a paper ID for identifying the paper document on the paper document; storage means for holding the read paper ID; A writing information input device having a transmission means for transmitting the held paper ID to another device,
A writing information input device further comprising paper ID issuing means for issuing a new paper ID. The paper ID issuing unit issues a new paper ID when the paper ID information reading unit cannot read or recognize the paper ID on the paper document. The writing information input device according to claim 1. The writing information input device has a paper ID issue button,
2. The writing information input device according to claim 1, wherein the paper ID issuing means issues a new paper ID based on an instruction from the paper ID issue button. An encoding means for creating an encoded paper ID obtained by encoding a paper ID for identifying a paper document, a decoding means for decoding the encoded paper ID, a document ID assigned to an electronic document, and the paper ID Document paper ID related means for associating; printing means for acquiring the paper ID and printing the encoded paper ID created by the encoding means on the paper document; paper ID management means for managing the paper ID; An information acquisition means for acquiring the writing information and the paper ID decoded by the decoding means from a paper document having a printed paper ID printed and handwritten writing information, and acquired by the information acquisition means A document processing system having a processing paper ID related means for associating a processing ID indicating processing performed on writing information with the paper ID,
The document processing system according to claim 1, wherein the information acquisition unit is the writing information input device according to claim 1. 5. The document according to claim 4, further comprising a paper ID collation determination unit that determines whether or not the paper ID acquired in the writing information input device is a paper ID managed by the paper ID management unit. Management system. When the paper ID collation determination means determines that the paper ID acquired in the writing information input device is a paper ID that is not managed by the paper ID management means, it is acquired in the writing information input device. 6. The document management system according to claim 5, further comprising paper ID conversion means for converting a paper ID into a paper ID managed by the paper ID management means. Computer
Coordinate input means for detecting written information on a paper document;
Paper ID information reading means for recognizing and reading a paper ID for identifying the paper document on the paper document;
Storage means for holding the read paper ID;
Transmission means for transmitting the held paper ID to another device;
A paper ID issuing means for issuing a new paper ID;
Written information input program characterized by being executed. The paper ID issuing unit issues a new paper ID when the paper ID information reading unit cannot read or recognize the paper ID on the paper document. 8. The writing information input program according to claim 7. 8. The writing information input program according to claim 7, wherein the paper ID issuing means issues a new paper ID based on an instruction from a paper ID issue button. A computer-readable recording medium on which the writing information input program according to any one of claims 7 to 9 is recorded.

Images