JP2009278176A - Method and system for managing paper document electronization data - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To automatically correlate paper documents with electronization data, namely the print source of the paper documents, and to improve the recycling and workability in it management. <P>SOLUTION: Morphology operation is performed to the used paper documents P', in advance, to detect falsification. The paper documents P' are read as the electronization data I'f, file information D1 including storage place information on the electronization data 141, namely, the print source, is extracted from the electronization data I'f, and the morphology operation is performed to the electronization data I'f again. In this manner, by utilizing the idempotence of the morphology operation, the electronization data, namely the printing source, can be acquired and unified management with falsification information can be made. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention associates paper material used in a tamperable environment such as a meeting with original data (raw paper electronic file) that can be edited, and various tampering added in the tamperable environment. The present invention relates to a management method and management system for digitized data of paper materials for centrally managing information.

In recent years, the digitization and sharing of documents in offices and the like has become popular. For this reason, digitized data of paper materials distributed in a tamperable environment such as a conference is generally registered as an attached document in a conference management system or the like. Also, as an attempt to save labor when digitizing paper materials, for example, Patent Document 1 proposes a management technique for digitized data using a barcode or the like.
JP 2007-13935 A

  The inventors have discovered the following problems as a result of examining computerized data management technology in the conventional conference management system and the like as described above.

  In other words, paper materials that have been used once in a meeting or the like, which is one of the tamperable environments, can be digitized by a scanner or the like because there is no way to extract the base paper digitized file that is the printing source of the paper materials There was a problem that the image data could not be edited.

  Further, even paper materials that have been used once in a meeting or the like, tampering information is not always added to all paper materials. However, since there is no automatic method for specifying whether or not a memo is written on a paper material, the target paper material must be selected visually in a situation where only the memo-written paper material is to be scanned. On the other hand, when a paper material is scanned, there is no method for automatically specifying the material name of the paper material, so a meaningless file name is given to the scanned digitized data. In this case, it is necessary to manually specify or change the file name. In addition, there is no method for automatically identifying organization information such as paper material categories, so scanned digitized data (image files) cannot be automatically saved and organized (specify the save destination manually). There were various problems.

  The present invention has been made in order to solve the above-described problems, and enables the association between a paper material actually used and a base paper digitized file from which the paper material is printed, as well as a paper material. It is an object of the present invention to provide a management method and management system for digitized paper material data having a structure for improving the workability of reuse and management of digitized paper material data.

  The method for managing digitized data on paper material according to the present invention relates to a method for storing and managing paper material used in a tamperable environment such as a meeting as digitized data, and in particular, the paper material actually used and the It enables association with base paper digitized data, which is a printing source of paper material, and centrally manages falsification information and base paper digitized data added in the falsification environment. In order to enable such management, in the management method of the paper material digitized data, before the paper material collected from the tamperable environment is digitized, the paper material used in the tamperable environment is printed. An operation for falsification detection processing is performed in advance. The tamperable environment includes an environment where paper materials are used, such as a meeting. In addition, the alteration in the tamperable environment includes not only information directly written by the conference participant on the printed paper material, but also paper material newly added during the conference (paper material of unknown origin).

  Specifically, in the paper data digitization data management method according to the present invention, the used paper data collected from the tamperable environment is stored in advance with respect to the print image (image information) of the base paper digitized file. This is a paper material printed after the first morphological operation. Further, in the pre-stage or post-stage of the first morphological operation, file information including at least information on the storage location of the base paper digitized file is added to the base paper digitized file or print image. Here, the base paper digitized file is digitized data that can be edited by an electronic information processing device such as a personal computer, and includes document files and electronic documents. These binarized images, still images, and moving images are included. Each frame image constituting the image is also included. Note that the area on which the morphological operation is performed does not have to be the entire base paper digitized file. For example, even if it is an effective area of the base paper digitized file in which information is written, a part of the base paper digitized file (memo Column). In addition, the area on which the morphological operation is performed may be a plurality of locations in the base paper digitized file.

  Further, in the management method, the paper material is read as image data (paper material computerized data) (digitization of the collected paper material). This work is performed whenever a participant such as a meeting wishes to edit the provided paper material. The read digitized data is subjected to a second morphological operation, whereby new comparative digitized data is generated. It should be noted that visible or invisible file information added in advance before or after the second morphological operation is extracted from the digitized data to be printed (base paper digitized file or print image). By extracting the file information in this way, a base paper digitized file database (D / B) (D / B in which an editable base paper digitized file from which the printed paper material is printed is stored) Therefore, the base paper digitized file can be acquired via a transmission means such as a network (association of paper material and base paper digitized file). Then, the tampering information added to the paper material in the tamperable environment is extracted by calculating the difference between the generated computerized data for comparison and the paper material digitized data. The extracted alteration information is stored as image data in a management database (D / B) for each category prepared for centralized management in a state associated with a base paper digitization file of paper material.

  In this way, falsification information and raw paper digitized files are associated with each other and managed for each paper material collection source (for example, conference participants), thereby enabling highly transparent data management. The collection source can arbitrarily select necessary digitized data.

Morphology Operation applied to the management method as one of the falsification detection processes is the authenticity of images (including print images of document files, digital images, etc.) using its idempotency (Idempotent) This is an information security technology that proves the above, and can achieve the same or better effect than the conventional digital watermark technology with a smaller amount of calculation (higher speed). The paper data digitization data management method and management system according to the present invention applies a morphological operation to the extraction of falsification information, whereby a base paper digitization file and falsification information added in a falsification-enabled environment. Each can be managed independently. Here, the idempotency of the morphological operation is the same as that for the morphological image _If obtained by performing the morphological operation f on the image (printed image of the paper material) I using the structural element e. Even if the morphological operation f is performed again using the structural element e (a morphological image _Iff is obtained), the identity between the images before and after the operation (I _f = I _ff ) is maintained.

  In the paper data digitized data management method according to the present invention, the print image of the base paper digitized file or the base paper digitized file that is the object of the first morphological operation includes information on the storage location of the base paper digitized file. It is preferable to add at least file information. This file information may be visible information such as a barcode or an IP address, or may be invisible information embedded in a print image of a base paper digitized file. In addition, the file information may be combined with the base paper digitized file before generating the print image, embedded as visible or invisible information in the print image, or visible or invisible in the print image after the morphological operation is completed. It may be added as information. Note that file information added at a later stage of the first morphological calculation can be extracted as falsification information.

  In this way, by adding file information to the paper material to be printed, the location, purpose of use (meeting ID, etc.) of the base paper digitized file that has become the digitized data of the paper material can be obtained as auxiliary information. In addition, newly added paper materials can be clearly distinguished from the paper materials collected from the tamperable environment.

  Furthermore, in the method for managing digitized paper material data according to the present invention, it is preferable to authenticate the collection source of the paper material prior to digitization of the paper material collected from the tamperable environment. This is because the security level in paper material management can be improved.

  The system for realizing the paper data digitized data management method according to the present invention configured as described above can be constructed under a predetermined network environment or by a single personal computer. The paper material digitized data management system according to the present invention includes an external recording device, an input / output unit, digitizing means, and a control unit in order to realize the above-described paper material digitized data management method.

  The external recording device may be a hard disk of a personal computer, or may be composed of a plurality of file servers managed on a network. This external recording device includes at least a management database (D / B) and a personal information table for managing the operation authority of the conference participants in order to enhance the security level. In addition, the base paper electronic file database (D / B) and the reservation table for scheduling meetings are managed by a paper material printing system (conference management system) used in a tamperable environment. In general, the management system can acquire these electronic data via a predetermined transmission means. The base paper digitized file D / B stores a base paper digitized file that is a printing source of the paper material to be printed. In the management D / B, for each collection source of paper material, the extracted falsification information is stored in association with the base paper digitization file together with the base paper digitization file of the collected paper material.

  The input / output unit includes a communication interface that prints paper material and enables data exchange with, for example, a network-connected printing system. The digitizing means includes a scanner that captures paper data collected from a tamperable environment as image data. In addition, the control unit performs digital arithmetic processing (for example, morphological arithmetic for falsification detection processing) on the base paper electronic file and the paper material electronic data digitized by the electronic means.

  Each embodiment according to the present invention can be more fully understood from the following detailed description and the accompanying drawings. These examples are given for illustration only and should not be construed as limiting the invention.

  Further scope of applicability of the present invention will become apparent from the detailed description given below. However, the detailed description and specific examples, while indicating the preferred embodiment of the invention, are presented for purposes of illustration only and various modifications and improvements within the scope of the invention may It will be apparent to those skilled in the art from the detailed description.

  As described above, according to the present invention, by applying a morphological operation effective for improving the security technology to the information extraction technology, the paper material used in the tamperable environment and the electronic source that is the printing source of the paper material Enables association with data, and can be managed individually for various categories, for example, for each information source (for example, collection source) and for each information element (image data including only a base paper digitized file and falsification information) Become. As a result, the workability of reusing and managing the paper material digitized data is significantly improved for the user of the paper material.

  Hereinafter, embodiments of a management method and management system for digitized data of paper material according to the present invention will be described in detail with reference to FIGS. In the description of the drawings, the same portions and the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a diagram showing a schematic configuration of a paper material digitized data management system according to the present invention, together with a paper material printing system (conference management system). As shown in FIG. 1, the paper material P provided to the tamperable environment 400 is printed by a printing system 100 such as a conference management system. The printing system 100 includes an input / output unit 130 (I / O) that is a communication interface that enables data exchange with the control unit 110, the printer 120, and other systems via the network 300 (included in the transmission unit). And an external recording device. The external recording device in the printing system 100 manages a base paper digitized file D / B 140 in which editable digitized data (base paper digitized file 141) serving as a printing source of the paper material P is stored, a schedule, and the like. Reservation table 150 at least. On the other hand, the paper material digitized data management system 200 is a system that can exchange data with the printing system 100 via the network 300, and includes a control unit 210 and an input / output unit (I / O) 230 that is a communication interface. And a scanner 220 (electronic means) and an external recording device. The external recording device in the management system 200 includes a management D / B 240 for centrally managing falsification information and the like, and a personal information table 250 for security, together with a base paper digitized file from which the paper material is printed. The management D / B 240 stores a personal folder 241 for centrally managing a plurality of types of files for each collection source of paper materials. The management system can also be constructed in a predetermined network environment (whether wired or wireless) or a personal computer alone. The base paper digitized file D / B 140 may be managed by a file server via a predetermined transmission means.

  The external recording device in the printing system 100 and the management system 200 may be a hard disk of a personal computer or a file server managed on a network. In particular, in the embodiment shown in FIG. 1, the external recording apparatus in the printing system 100 includes a reservation table 150 (see FIG. 6) for scheduling a meeting in addition to the base paper digitized file D / B 140. . On the other hand, the external recording device in the management system 200 includes, in addition to the management D / B 240, a personal information table 250 (see FIG. 6) for managing the operation authority of the conference participants for enhancing the security level. In the base paper digitized file D / B 140, a base paper digitized file (such as editable document data of the paper material to be printed) 141 that is a printing source of the paper material is recorded (see FIG. 2). The management D / B 240 stores the extracted alteration information together with the base paper digitized file 141 acquired based on the file information extracted from the collected paper material for each collection source (conference participant) of the paper material. The personal folder 241 is stored in a state associated with the base paper digitized file 141. Specifically, the personal folder 241 is a folder specified by the personal ID of the conference participant who is the collection source of the paper material and the conference ID for specifying the held conference, and is registered in the personal information table 250. It is sequentially generated for each person who is present and for each meeting.

  The I / Os 130 and 230 in the printing system 100 and the management system 200 are communication interfaces that enable data exchange between the systems via the network 300. Further, the paper material P printed by the printer 120 (including a printer connected to the network) of the printing system 100 is used in a tamperable environment 400 such as a meeting. On the other hand, the scanner 220 in the management system 200 takes in the paper material P ′ collected from the tamperable environment 400 as image data (paper material digitized data). The paper material digitized data read by the scanner 220 as described above becomes a management target of the management system 200.

  The control unit 110 in the printing system 100 performs digital arithmetic processing, for example, morphological arithmetic for falsification detection processing, on the print image of the base paper digitized file 141. On the other hand, the control unit 210 in the management system 200 also performs digital arithmetic processing such as morphological arithmetic on the paper material digitized data digitized by the scanner 220.

  FIG. 2 is a process diagram for specifically explaining the pre-processing process of the falsification detection process in the printing system 100 shown in FIG. Here, the following tamperable environment 400 includes an environment in which the paper material P is used, such as a meeting. Further, the alteration in the tamperable environment 400 includes not only information directly written by the conference participant on the printed paper material P but also paper material newly added during the conference (paper material of unknown origin). .

As shown in FIG. 2, in the printing system 100, prior to printing the paper material P by the printer 120, first, the base paper digitized file 141 (document) of the paper material P to be printed from the base paper digitized file D / B 140. The digitized data D ₀ ) is read out, and the file information D ₁ including the location information of the base paper digitized file 141 is combined (step ST1), and an original image (print image) I is obtained. The document digitized data D ₀ that is the base paper digitized file 141 is digitized data that can be edited by an electronic information processing device such as a personal computer, and includes document files and electronic documents. Each frame image constituting the digitized image, still image, and moving image is also included.

The first morphological operation is performed on the print image I generated after combining the editable digitized data D ₀ and the file information D ₁ using the structural element e (step ST2). ). The first morphology image I _f the morphology operation in the first round has been performed is printed by the printer 120 (step ST3). When printing, the conference paper material P is printed by the number of copies corresponding to the number of participants by referring to the reservation table 150 that collectively manages the conference schedule and the like. The file information D _1, for example a bar code may be either invisible information embedded in the print image I of the base paper electronic file even visible information such as the IP address. Although file information D ₁ before generation of the print image I is added to the electronic data D ₀ of the base paper electronic file 141 in this embodiment, the file information D ₁ is capable added in the various steps up to printing is there. In other words, the file information D ₁ is also coupled to the base paper electronic file 141 before generating a print image I, even embedded as visible or invisible information in print image I, further, printing after the morphology operation completion It may be added to the image _If as visible or invisible information. Note that file information added at a later stage of the first morphological calculation can be extracted as falsification information.

The printed paper material P may be written down by a conference participant in a tamperable environment 400 such as a conference. In addition, another paper material may be newly added. In this context, by confirming the presence or absence of the file information D ₁ indicating the location of the base paper electronic file 141, can be easily performed anew whether additional paper documents determined that during the meeting.

  On the other hand, FIG. 3 is a process diagram for explaining falsification detection processing in the management method (management system) of digitized paper material data according to the present invention.

  The paper material P ′ collected from the tamperable environment 400 such as a meeting is once digitized by the scanner 220 to enable unified management (step ST4). The collected paper material P ′ is digitized by digitizing means such as the scanner 220. At that time, the operation authority of the collection source of the paper material P ′ is confirmed by the personal information table 250. In this way, by confirming the operation authority of the collection source when the collected paper material P ′ is digitized, the security level of the management system 200 that realizes the management method can be improved.

Once the paper document image I _^'f read by the scanner 220, it is possible that some tampering information is added in tamperable environment. Therefore, the second morphological operation is performed using the same structural element e as the structural element in the first morphological operation (step ST4), and the presence / absence of such falsification information is confirmed. Then, falsification determination is performed based on the second morphological image I ^′ _ff (comparison digitized data) obtained by the second morphological operation and the paper material image I ^′ _f (step ST6). Note that this alteration determination is simply ^'not only performs authenticity determination of _f, paper materials P' read paper document image I by the scanner 220 are lines extracted alteration information added to and file information D ₁ Is called.

First, the file information D ₁ that has been added to the paper materials P 'are extracted, on the basis of the file information D _1, the base paper electronic file 141 corresponding stored base paper electronic file D / B 140 is, Acquired via the network 300. On the other hand, when the falsification information added to the paper material P ′ is extracted in the falsification determination process (step ST6), the extracted falsification information (image data) is also a base paper digitized file from which the paper material P is printed. 141 is stored in the management D / B 240 while being associated with each other. At that time, paper materials other than the paper material P prepared for the conference are also stored in the management D / B 240 in a state of being associated together.

  As described above, the falsification information and the base paper digitized file 141 are associated with each other, and are stored in the management D / B 240 for each collection source (for example, a conference participant) of the paper material, so that the transparency is high. Data management becomes possible, and the collection source can arbitrarily select necessary digitized data.

Note that, as described above, subject to the original image I of the first morphology operation (step ST2) includes an electronic data D ₀ is a base paper electronic file 141, the location of the electronic data D ₀ file information D ₁ including at least information is printing images coupled. The file information D ₁ may be either invisible information embedded in the visible information or electronic data I _0, such as a bar code. When using the file information I ₁ as visible information, it is preferable to simultaneously print the first morphology image first round of morphological operations (step ST2) is performed (the electronic data) in printing a paper medium . On the other hand, when using the file information I ₁ as invisible information, it is also possible added at any stage prior to stage or rear stage of the first morphology operation (step ST2). Note that the file information I ₁ to be added in the later stages of the first morphology operation (step ST2) is extracted as tampering information.

In this way, by the paper materials P to be printed in advance by adding file information D _1, location of the base paper electronic file 141 as a print source of the paper article as such intended use (such as conference ID) auxiliary information In addition to being obtained, it is possible to clearly distinguish newly added paper materials from among the paper materials P ′ collected from the tamperable environment.

  Next, the principle of the morphological operation applied to the image processing method and the image inspection method according to the present invention will be described in detail with reference to FIGS.

The morphological operation f is composed of an element called an structuring element e (Structuring Element) and an operation called Minkowski sum and Minkowski difference. That is, in the morphological operation, it is performed by a combination of contraction (Erosion) for calculating the Minkowski sum and expansion (Dilation) for calculating the Minkowski difference, and in particular, the morphological operation performed in the order of contraction and expansion is called opening (Opening). The morphological operation performed in the order of expansion and contraction is called closing. It has been confirmed that both the idempotency of opening and the idempotency of closing are maintained, and either opening or closing may be performed as a morphological operation. Note that idempotency means that a morphological operation f using the same structural element e is applied to a morphological image _If obtained by performing a morphological operation f on the original image I using the structural element e. Even if it is applied again (a morphological image I _ff is obtained), it refers to a property of the morphological operation that the identity (I _f = I _ff ) between images before and after the operation is maintained.

For example, a case where the structural element shown in the region (a) of FIG. 4 is applied as the structural element e will be described. The structural element e shown in the area (a) of FIG. 4 is a structural element that moves the original image I in each of the directions A to D around the original image I. In FIG. 4, the area (b) shows the original image I. In this area (b), I ₁₀₀ indicates the virtual image space, and the solid line of I ₂₀₀ indicates the original image frame.

Using the structural element e (region (a) in FIG. 4), a morphological operation (which may be either opening or closing) is performed on the original image I (matching with the frame I ₂₀₀ in the region (b) in FIG. 4). First, in the virtual image space I ₁₀₀ , shift images A to D obtained by moving the original image I in the direction indicated by the structural element e are obtained (region (c) in FIG. 4).

FIG. 5 shows a conceptual diagram of an image generation process by contraction processing and expansion processing. That is, by calculating the Minkowski difference of the shift images A to D thus obtained (shrinkage), a shrinkage image _IE is obtained. On the other hand, by calculating the Minkowski sum of the shift images A to D (expansion), the expansion image _ID is obtained. In the morphological operation, when the opening is performed on the original image, a plurality of shift images are obtained by moving the original image in the direction indicated by the structural element in the virtual image space I ₁₀₀ , and these shift images are obtained. In contrast, expansion is performed after contraction is performed. When closing is performed on the original image, the plurality of shift images obtained using the structural element e are expanded and then contracted.

  FIG. 6 shows a reservation table 150 managed by the printing system 100 shown in FIG. 1 and a personal information table 150 managed by the management system 200 (paper data digitized data management system according to the present invention). It is a figure which shows an example of this logical structure. Each of the reservation table 150 and the personal table 250 does not need to be managed by the printing system 100 or the management system 200, and may be managed by an arbitrary file server or the like on the network 300.

  As shown in FIG. 6A, in the personal information table 250, for each personal ID (Pa, Pb, Pc, Pd,...) For specifying each conference participant, authority items P-1, The presence / absence of authority for each of P-2, P-3, P-4,... Is recorded. On the other hand, as shown in the area (b) of FIG. 6, the reservation table 150 includes conference IDs (Da, Db, Dc, Dd,...) For specifying the conference to be held. In each case, the personal ID of the conference participant is recorded.

  FIG. 7 is a process diagram for explaining in more detail the data storage process in the paper data digitized data management method according to the present invention.

  The paper material P ′ collected from the tamperable environment 400 such as a conference is received by the user of the management system 200 who desires a data link from the paper material P ′ in order to enable centralized management. After confirming the operation authority of the conference participant), it is once digitized (step ST4), subjected to the second morphological operation using the structural element e (step ST5), falsification determination (step ST6) and data Is stored and managed (step ST7).

Specifically, in the carried out falsification determination in step ST6, firstly, a confirmation whether contains file information D ₁ is performed in the second morphology image I _^'ff for second morphology operation is performed (step ST61 ). In the file information D ₁ , the location, use purpose (meeting ID, etc.) of the base paper digitized file 141 that is the printing source of the paper material P ′ is obtained as auxiliary information, and the paper material collected from the tamperable environment 400 It becomes possible to clearly distinguish newly added paper materials among P ′. Therefore, if the file information D ₁ from the second morphology image I _^'ff obtained can not be detected, the image data of the newly added paper article in tamperable environment 400, the corresponding personal folders 241 (personal ID It is stored in the management D / B 240 as a part of data constituting the management file identified by the conference ID (step ST74).

On the other hand, ^'if the _ff contains file information D _1, tampering from the environment 400 recovered paper materials P' second morphology image I is an image data of a paper document image I _{^'f (first} morphology image I possibility of tampering information is added to _f of an image) and performs a differential operation between the second morphology image I _^'ff, the presence or absence of falsification is determined on the basis of the difference information (step ST62). In tampering judgment at this step ST62, when it is determined that the alteration was not, file information on the basis of the D _1, electronic data D ₀ editable a base paper electronic file 141 corresponding the base paper electronic file D / B 140 Is acquired via the network 300 (step ST71) and stored in the management D / B 240 as a part of data constituting the corresponding personal folder 241 (management file identified by the personal ID and conference ID) (step ST71). ST72). Conversely, the tampering judgment at this step ST62, when it is determined that there is tampering, the electronic data D ₀ is a base paper electronic file 141 corresponding the base paper electronic file D / B 140 based on the file information D ₁ Obtained via the network 300 (step ST71), the difference information I _d (= I ^′ _ff −I ^′ _f : image data including only falsification information included in the paper material P ′) and the acquired digitized data D ₀ is stored in the management D / B 240 as a part of data constituting the corresponding personal folder 241 (management file identified by the personal ID and conference ID) (steps ST72 and ST73). The electronic data D ₀ obtained, since the user performs an editing operation, may be managed by an external recording apparatus other than the management D / B 240.

As described above, each of the digitized data D ₀ , the difference information I _d of the base paper digitized file 141, and the paper material digitized data I ^′ _f of the collected paper material P ′ is managed in the associated state. / B240 is stored. The user of the management system 200 can extract and use necessary digitized data according to his / her purpose.

  Next, various operations faced during the specific operation of the paper material digitized data management system 200 according to the present invention will be specifically described together with the operation of the paper material printing system 100.

The first embodiment, the file information D ₁ embedded in the printed paper materials P, relating to the operation to retrieve the information associated with the base paper electronic file 141.

In Example 1, when the electronic data D ₀ is a base paper electronic file 141 is printed, the file information D _{1 (File} Directory, a file name, such as author) are also printed to suit. File information D ₁ includes a case to be printed as an invisible information and the like morphology operation f, there is a case where a bar code, such as by IP address is printed as visible information. In particular, file information D _1, when printed as visible information, so as not to obstruct the view of the printed paper materials P, printed on (surrounding the active area region of the paper materials P) and the back surface sheet periphery Is done. The base paper digitized file 141 is assumed to be editable document data, presentation material data, a mount file for writing notes, and the like.

The printed paper material P is distributed to the participants at the meeting. When the conference participant wants the digitized data D _{0 as} the printing source of the distributed paper material P, the paper material P ′ (paper material P ′ collected from the tamperable environment) is read by the scanner 220.

At that time, the file information D ₁ embedded at the time of printing is extracted from the digitized data (paper material digitized data I ^′ _f ) of the paper material P ′ read by the scanner 220. Then, the storage location of the file information D ₁ that has been extracted base paper electronic file 141 is identified, electronic data D ₀ of the base paper electronic file 141 is stored in a personal folder 241 of the participants specified. In addition, electronic data D ₀ obtained may be sent to the participants, such as e-mail.

Next, the second embodiment, by specifying the file information D ₁ and personal ID embedded in the printed paper materials P, regarding the operation of managing the extraction rights conference participants.

In the second embodiment, when the scanner 220 is used, the user of the scanner 220 is specified by an IC card or the like, and whether or not there is an authority to access the storage location of the base paper digitized file 141 from which the paper material P is printed. Is confirmed by referring to the personal information table 250. Then, the access information is included in the file information D ₁ embedded in the collected printed matter P ′, and the processing method for the user specified by the new file information D ^′ ₁ is determined. For example, if it is impossible to read the base paper digitized file 141 as the access management information, processing such as not permitting reading of the base paper digitized file 141 is performed.

  The third embodiment relates to an operation of automatically detecting whether or not a memo is written on the collected paper material P ′ by the falsification detection process performed on the printed paper material P.

In the third embodiment, prior to printing of the print image I in which the digitized data D ₀ of the base paper digitized file 141 and the file information D ₁ are combined, a morphological operation that is one of alteration detection processing for the print image I is performed. (Using the structural element e) is performed. In this way, the print image I subjected to the morphological operation using the structural element e is printed. The printed paper material P is distributed to participants in a meeting such as a meeting (tamperable environment 400), and the memo content is written in a partial area of the paper material P by the participant.

Participants, if you want to leave a note, (digitization of paper materials P ') to load the _f' image data I of the ^{'memo-written} paper material P to the scanner 220. The thus loaded paper documents electronic data I _^'f is subjected to the morphology operation using again structural elements e (falsification detection processing). Note that the image data (paper material digitized data I ^′ _f read by the scanner 220) of the paper material P ′ (the page where the memo is written) that has been tampered with is stored in the management D / B 240. On the other hand, the paper material P ′ that has not been tampered with is not stored in the management D / B 240 (because the digitized data D ₀ is acquired separately).

Example 4 by the file information D ₁ embedded in the printed paper materials P, relating to the operation of automatically determining the storage destination of the loaded paper documents electronic data I _^'f the scanner 220.

In the fourth embodiment, when the paper material P ′ (including the memo-written paper material) collected from the tamperable environment 400 is stored as image data (paper material digitized data I ^′ _f ), the paper material P ′. based on the file information D ₁ that is embedded in, location and file name are determined.

Example 5, based on the meeting of the reservation information (reservation table 150), relating to the operation of automatically determining a destination of a paper document digitized data I ^_'f.

  In the fifth embodiment, a conference room to be used is reserved in advance by a conference reservation system (included in the printing system 100 of FIG. 1) or the like. At that time, management information such as meeting contents, meeting date and time, and participants is registered in the conference reservation system. A scanner 220 is installed in the conference room as an input / output unit, and a user (conference participant) of the scanner 200 is specified from the personal information table 250 by an IC card or the like when the scanner 200 is used. Based on the specified user information and date / time information, the conference information is checked against the reservation information (reservation table 150) of the conference reservation system, and the conference information is extracted.

When the conference participant causes the scanner 200 to read the paper material P ′ (paper material collected from the tamperable environment 400), the folder name of the save destination is based on the conference information extracted from information such as an IC card. , the file name is automatically determined and stored in the management D / B 240 with the file name paper document digitized data I _^'f read by the scanner 220 is determined. For example, the management D / B 240 is provided with a folder whose folder name is a character combination of “user name” + “meeting content” or a character combination of “meeting content” + “memo” + “date”. If the conference information cannot be specified (the conference ID is unknown), a folder name and a file name are generated using a character combination of “conference room name” + “when held”.

  From the above description of the present invention, it is apparent that the present invention can be modified in various ways. Such modifications cannot be construed as departing from the spirit and scope of the invention, and modifications obvious to one skilled in the art are intended to be included within the scope of the following claims.

  As a typical example, the paper material data management method and management system according to the present invention stores and manages paper material distributed at a meeting or the like, which is a tamperable environment, as digitized data (paper material digitized data). The present invention can be applied to a conference management system or the like, and can be applied to a general information processing system that manages a large amount of paper material as digitized data.

It is a figure which shows schematic structure (a printing system is included) of the management system of the paper material digitization data based on this invention. FIG. 2 is a process diagram for specifically explaining a pre-processing step of falsification detection processing in the printing system shown in FIG. 1. It is process drawing for demonstrating the alteration detection process in the management method (management system) of the paper material digitization data based on this invention. It is the conceptual diagram for demonstrating the principle of the morphological operation applied to the management method of the paper material digitization data based on this invention (the 1). It is a conceptual diagram for demonstrating the principle of the morphological operation applied to the management method of the paper material digitization data based on this invention (the 2). It is a figure which shows an example of the logical structure of the personal information table and reservation table which are each managed by the management system of paper material digitization data concerning this invention, and a printing system. It is process drawing for demonstrating in detail the data preservation | save process in the management method of the paper material digitization data based on this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Printing system (conference management system), 110, 210 ... Control part, 120 ... Printer, 130, 230 ... Input / output part (I / O), 140 ... Base paper digitization file D / B, 141 ... Base paper digitization file , 150 ... reservation table, 220 ... scanner (electronic means), 240 ... management D / B, 241 ... personal folder, 300 ... network (transmission means), 400 ... tamperable environment.

Claims (5)

The first morphological operation is performed on the printed image of the base paper digitized file that is used paper material collected from the tamperable environment and is stored in advance, and the first morphological operation is performed. In the previous stage or the subsequent stage, the paper material printed after the file information including at least the storage location information of the base paper digitized file is added to the base paper digitized file or the print image is read as image data. ,
The computerized data for comparison is generated by performing a second morphological operation on the paper data digitized data that is the read image data,
The file information is extracted from the paper material digitized data in the pre-stage or post-stage of the second morphological operation,
By calculating the difference between the generated digitized data for comparison and the digitized data for paper material, the falsification information added to the paper material in the falsifiable environment is extracted,
While acquiring the base paper digitized file based on the extracted file information, when the falsification information is extracted, at least the extracted falsification information is associated with the acquired base paper digitized file. Management method for computerized data of paper materials to be stored.   Of the read digitized data of paper material, the digitized data of paper material to which the file information is not added is stored in a state associated with the acquired digitized paper file and the extracted falsification information. The method for managing digitized data of paper material according to claim 1.   The method for managing digitized paper material data according to claim 1 or 2, wherein authentication of the collection source of the paper material is performed prior to digitization of the paper material collected from a tamperable environment. A used paper material collected from a tamperable environment, which is subjected to arithmetic processing for falsification detection processing on a preliminarily stored base paper digitized file, and before or after the arithmetic processing In this case, the paper material printed after the file information including at least information on the storage location of the base paper digitized file is added to the base paper digitized file is read as image data,
The file information is extracted from the paper material digitized data that is the read image data, and the paper material digitized data is subjected to the falsification detection process, whereby the paper material in the falsifiable environment is processed. Extract the tampering information added, and
While obtaining the base paper digitized file based on the extracted file information, when falsification information is extracted, at least the extracted falsification information is associated with the acquired base paper digitized file. Management method for computerized data of paper materials to be stored. A management system for realizing the management method of electronic data of paper material according to any one of claims 1 to 4,
An input / output unit for performing data exchange with a base paper digitized file database for storing base paper digitized files to be printed as paper material via a predetermined transmission means;
Electronic means for reading paper data collected from a tamperable environment as image data;
A control unit that extracts the file information from the paper material digitized data and performs falsification detection processing, and acquires a corresponding base paper digitized file from the base paper digitized file database based on the extracted file information A control unit;
A paper document digitized data management system comprising at least a management database for storing falsification information obtained by the falsification process in a state associated with the obtained base paper digitized file.

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