JP2009200989A - Distribution-side program for data input support, input-side program, distribution-side apparatus, input-side apparatus, and data input support system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To input data while keeping confidentiality upon data input of information having confidentiality included in a document. <P>SOLUTION: A data input support system includes a distribution side apparatus 100 for generating divided image data from original image data and ciphering the divided image data such that only data inputter can decode the same, generating a distribution file including the divided image data and transmitting the distribution file to an input-side device used by the data inputter; and an input side device 200 for receiving the distribution file transmitted from the distribution side device 100, decoding the ciphered divided image data contained in the distribution file, presenting information contained in the decoded divided image data to the data inputter, receiving input of data by the data inputter, associating input data with the divided image data and containing it in the distribution file, and transmitting back the distribution file to the distribution-side device of the distribution source. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a distribution side program for data input support, an input side program, a distribution side device, an input side device, and a data input support system.

  An operation is performed in which a document including various data (characters and numbers) is read and digitized, and the data included in the document is input with reference to the digitized image data.

  For example, as shown in FIG. 13, image data of bank account information including an address, name, account number, and amount is transmitted to a supplier who performs input work, and the supplier reproduces an image from the received image data of bank account information. Referring to the image, the work of inputting the address, name, account number, and amount included in the image data is performed.

  However, when the manuscript includes information having confidentiality obligations such as personal information, there is a case where a plurality of pieces of information included in the manuscript are input to different vendors. For example, in the case of the bank account information shown in FIG. 13, as shown in FIG. 14, a divided image obtained by dividing an image into areas each including an address, name, account number, and amount of money, or areas other than the respective areas are masked. A method is employed in which mask images are sent to different vendors, and the respective vendors perform input processing on each piece of information (Patent Documents 1, 2, etc.).

JP 2003-58813 A JP 2006-229859 A

  When such a method is adopted, it is necessary for the client side to collect data input by each supplier and reproduce a combination of data included in the original image data. Therefore, it is necessary for the client and all input contractors to associate the original image data with the divided image, mask image, and input data. In particular, the input trader needs to associate the divided image or mask image with the original image data, and associate the input data with the original image data, and file management is complicated.

  One component of the present invention is an image segmentation step for generating segmented image data in which an image area including the input target information is extracted from document image data including input target information that requires input by a data input person. A divided image data encryption step for encrypting the divided image data so that only a data input person of the input target information included in the divided image data can decrypt the encrypted image data; A distribution file generation step for generating a distribution file for each original image data, and a file transmission step for transmitting the distribution file to an input side device used by a data input person. This is a distribution side program.

  Here, the first encryption key used for encrypting the divided image data is encrypted using a second encryption key that can be decrypted only by a data input person of the input target information included in the divided image data. An encryption step may be further executed by the computer, and the distribution file generation step may include the encrypted divided image data and the second encryption key in association with each other in the distribution file.

  In the distribution file generation step, the encrypted divided image data and area specifying information for specifying an image area occupied by the image of the divided image data in the document image are included in the distribution file in association with each other. Also good.

  The distribution file generation step may include the encrypted divided image data and attribute information indicating attributes of input target information included in the divided image data in association with each other in the distribution file.

  In the distribution file generation step, the encrypted divided image data and restriction information indicating restriction when inputting the input target information included in the divided image data are associated and included in the distribution file. Also good.

  According to another aspect of the present invention, there is provided a computer in which image data obtained by extracting an image area including the input target information from original image data including input target information that requires input by a data input person is encrypted. Included in the file receiving step for receiving a distribution file including image data, the image data decoding step for decoding the encrypted divided image data included in the distribution file, and the decoded divided image data A data input step for presenting information to the data input person and accepting data input by the data input person, and a distribution file for including the input data obtained in the data input step in the distribution file in association with the divided image data An update step, and a file transmission step for returning the delivery file to the delivery source device. When an input-side program for causing the processing including execution.

  Here, the computer further executes an encryption key encryption step of encrypting the input data with an encryption key that can be decrypted only by a user of the distribution side device, and the distribution file update step includes the encrypted input Data may be included in the distribution file in association with the divided image data.

  Further, when the divided image data included in the distribution file is associated with an encrypted encryption key that can be decrypted only by a data input person of the input target information included in the divided image data, An encryption key decryption step for decrypting an encryption key is further executed by a computer, and in the image data decryption step, the encrypted divided image data included in the distribution file using the decrypted encryption key It is good also as what decodes.

  When the divided image data included in the distribution file is associated with area specifying information for specifying an image area occupied by an image of the divided image data in the document image, the data input step includes the image area. The divided image data may be displayed in an image area in the document image corresponding to information for specifying the information and presented to the user.

  Further, when the divided image data included in the distribution file is associated with restriction information indicating a restriction when inputting the input target information included in the divided image data, the data input step includes the restriction It is good also as what restricts the data input by a data input person according to information.

  A plurality of data input persons are set for one piece of input target information included in any of the divided image data, and the input data input by the plurality of data input persons in the data input step is If they are different, the distribution file update process may set a data status flag indicating the difference and include it in the distribution file in association with the divided image data.

  According to another aspect of the present invention, there is provided a computer in which image data obtained by extracting an image area including the input target information from original image data including input target information that requires input by a data input person is encrypted. Image data, input data associated with the divided image data, a file receiving step for receiving a distribution file including the distribution data, and a distribution file received at the file receiving step, wherein the distribution file is associated with the same document image data. And a data assembling step for assembling input data included in a distribution file into one input database.

  Further, when the distribution file includes the divided image data, input data associated with the divided image data, and a data status flag indicating the authenticity of the input data, the distribution file is reproduced from the divided image data. And the input data associated with the divided image data are displayed, and the display mode of the input data is changed according to the data status flag associated with the divided image data at the time of display. It is good also as what to do.

  According to another aspect of the present invention, there is provided an image division that generates divided image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person. Means for encrypting the divided image data so that only a data input person of the input target information included in the divided image data can decrypt the divided image data, and the encrypted divided image A distribution side comprising distribution file generation means for generating a distribution file including data for each original image data, and file transmission means for transmitting the distribution file to an input side device used by a data input person Device.

  According to another aspect of the present invention, there is provided a divided image obtained by encrypting image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person. Included in the file receiving means for receiving the distribution file including data, the image data decoding means for decoding the encrypted divided image data included in the distribution file, and the decoded divided image data Data input means for presenting information to a data input person and accepting data input by the data input person, and update of the distribution file to include the input data obtained by the data input means in the distribution file in association with the divided image data And a file transmission means for returning the distribution file to the distribution-side distribution apparatus. It is an input-side device.

  According to another aspect of the present invention, there is provided a divided image obtained by encrypting image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person. Data, input data associated with the divided image data, file receiving means for receiving the distribution file included therein, and distribution files received by the file receiving means, which are associated with the same document image data And a data assembling unit that collects input data included in the distribution file into one input database.

An image dividing unit that combines these devices to generate divided image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person, and the divided image A divided image data encryption means for encrypting data so that only a data input person of the input target information included in the divided image data can decrypt the data;
A distribution file generating unit that generates a distribution file including the encrypted divided image data for each document image data; a first file transmission unit that transmits the distribution file to an input side device used by a data input person; The first file receiving means for receiving the delivery file returned from the input side device and the delivery file received by the file receiving means, which are included in the delivery file associated with the same document image data A data assembling unit that collects input data into one input database; a second file receiving unit that receives a distribution file transmitted from the distribution side device; and an encrypted file included in the distribution file. Image data decoding means for decoding the divided image data, and the decoded divided image data Data input means for presenting information to be entered to the data input person and receiving data input by the data input person, and delivery including the input data obtained by the data input means in the delivery file in association with the divided image data You may comprise the data input assistance system characterized by including the input side apparatus provided with a file update means and the 2nd file transmission means which returns the said delivery file to the delivery side apparatus of a delivery origin.

  According to the configuration of the first, sixth, twelfth, fourteenth, fifteenth, sixteenth and seventeenth aspects, it is possible to input information contained in the document image more safely and convert it into data. In particular, when confidentiality is required for data input processing like personal information, it is possible to maintain confidentiality when inputting data in a plurality of vendors.

  According to the configuration of claims 2, 7 and 8, by using the encryption process, the information included in the document image can be input more safely and converted into data.

  According to the configuration of the third and ninth aspects, the information included in the document image is displayed in the image area of the document image to allow the user to confirm it, and the user can input it as data after viewing it.

  According to the configuration of the fourth aspect, the attribute of the information included in the document image can be confirmed, and processing according to the attribute can be realized.

  According to the fifth and tenth aspects of the present invention, when inputting information included in a document image, data input can be restricted according to the contents.

  According to the configuration of the eleventh and thirteenth aspects, when a plurality of data input persons input data for one piece of information included in the document image, it is confirmed whether or not the input data is different depending on the data status flag. And know the authenticity of the data.

  As shown in FIG. 1, the input support system according to the embodiment of the present invention includes a distribution-side device 100 and input-side devices 200 (200a to 200d). The distribution-side device 100 is installed on the requester side that requests data input, and the input-side device 200 is installed on a supplier who performs data input. The distribution-side device 100 and the input-side device 200 are connected so as to be able to transmit information to each other using communication means such as the Internet. In this embodiment, the number of input side devices 200 is four. However, the present invention is not limited to this, and the number may be changed according to the number of items to be input processed.

  As shown in FIG. 2, the distribution-side apparatus 100 includes a central processing unit 10a, a storage unit 12a, an input unit 14a, a display unit 16a, and an interface unit 18a. These components are connected to each other by information transmission means such as a bus or a network so as to be able to transmit information to each other.

  The central processing unit 10a includes a CPU (central control device). The central processing unit 10a receives information from the storage unit 12a, the input unit 14a, and the interface unit 18a, processes the information according to a program, and outputs the information to the display unit 16a and the interface unit 18a. I do. In the present embodiment, the central processing unit 10a implements the function as the distribution side device 100 of the input support system by executing the distribution side program stored in advance in the storage unit 12a.

  The storage unit 12a includes an information storage device such as a semiconductor memory, a hard disk device, and an optical disk device. The storage unit 12a stores and holds a distribution-side program executed by the distribution-side device 100 and data used for processing by the distribution-side device 100.

  The input unit 14a includes a character data input device such as a keyboard and an information input device such as a pointing device such as a mouse. The input unit 14a is operated by a user who inputs information to the distribution side device, and is used to receive an instruction from the user and data for processing. The input unit 14a may include an image reading device such as a scanner that reads an image formed on a print medium such as paper and converts the image into image data that is electronic data. Data input from the input unit 14a is stored and held in the storage unit 12a.

  The display unit 16a includes a display device such as a display. The display unit 16a is used for presenting a user interface image and information to be processed to the user when performing processing in the application. For example, a screen that presents a user interface image, a document image, or input data that prompts the user to input information necessary for processing in the distribution side device is displayed.

  The interface unit 18a is configured to include a device for connecting the distribution side device 100 to other devices via a communication means such as LAN, WAN, and the Internet so that information can be transmitted. In the present embodiment, the distribution-side device 100 may acquire image data and data necessary for input processing from an external device using the interface unit 18a. In addition, the distribution-side device 100 transmits image data and data necessary for input processing using the interface unit 18a to an external contractor in which the input-side device 200 is installed. The interface unit 18a may be a device that realizes information transmission according to an existing protocol such as TCP / IP.

  As shown in FIG. 3, the input side device 200 includes a central processing unit 10b, a storage unit 12b, an input unit 14b, a display unit 16b, and an interface unit 18b. These components are connected to each other by information transmission means such as a bus or a network so as to be able to transmit information to each other.

  The central processing unit 10b includes a CPU (central control device). The central processing unit 10b receives information from the storage unit 12b, the input unit 14b, and the interface unit 18b, processes the information according to a program, and outputs the information to the display unit 16b and the interface unit 18b. I do. In the present embodiment, the central processing unit 10b implements the function as the input side device 200 of the input support system by executing the input side program stored in advance in the storage unit 12b.

  The storage unit 12b includes an information storage device such as a semiconductor memory, a hard disk device, and an optical disk device. The storage unit 12b stores and holds an input side program executed by the input side device 200 and data used for processing by the input side device 200.

  The input unit 14b includes a character data input device such as a keyboard and an information input device such as a pointing device such as a mouse. The input unit 14b is operated by a user (such as a data input person) who inputs information to the input side device, and is used to receive an instruction from the user and data for processing. Data input from the input unit 14b is stored and held in the storage unit 12b.

  The display unit 16b includes a display device such as a display. The display unit 16b is used to present a user interface image and information to be processed to the user when performing processing in the application. For example, a user interface image necessary for data input processing in the input side device 200 is displayed to the user.

  The interface unit 18b includes a device for connecting the input-side device 200 to other devices via a communication unit such as LBN, WBN, and the Internet so that information can be transmitted. In the present embodiment, the input side device 200 acquires image data and data necessary for data input processing from the distribution side device 100 using the interface unit 18b. Further, the input side apparatus 200 transmits the input data to the distribution side apparatus 100 using the interface unit 18b. The interface unit 18b may be a device that realizes information transmission according to an existing protocol such as TCP / IP.

  FIG. 4 is a functional block diagram showing the input support system in the present embodiment.

  As shown in FIG. 4, the distribution side apparatus 100 includes an image acquisition unit 20, an image division unit 21, a divided image data encryption unit 22, an encryption key encryption unit 23, a distribution file generation unit 24, a file transmission / reception unit 25, data The assembly means 26 and the display means 27 are included.

  The input side device 200 includes a file transmission / reception means 30, an encryption key decryption means 31, an image data decryption means 32, a data input means 33, an input data encryption means 34, and a distribution file update means 35.

  Hereinafter, processing when the functions shown in the functional block diagram of FIG. 4 are realized in the input support system will be described. In the present embodiment, description will be given by taking as an example data input of a document including bank account information shown in FIG.

  Hereinafter, a distribution file creation process and a data assembly process that are processed by executing the distribution side program in the distribution side apparatus 100, and a data input process that is processed by executing the input side program in the input side apparatus 200 will be described. Separately described.

<Delivery file creation and delivery processing>
The distribution file creation and distribution processing is executed according to the flowchart shown in FIG. The central processing unit 10a executes the distribution side program stored in the storage unit 12a and performs the processing from step S10.

  In step S10, document image data to be processed in the data input process is acquired. This step S10 corresponds to the image acquisition means 20 in FIG. The document image data can be acquired by reading a document on which an image is formed on a print medium such as paper by an image reading device included in the input unit 14a. Further, the document image data may be acquired from an external device via the interface unit 18a. The acquired document image data is stored and held in the storage unit 12a.

  In step S12, document image data division processing is performed. The central processing unit 10a divides and extracts an area including information that requires data input processing from the document image data to be processed. This step corresponds to the image dividing means 21 in FIG.

  For example, information that needs to be entered for each type of document format, such as account information, deposit slips, receipts, etc., areas containing the information, attributes of the information, and restrictions on input of the information are defined. If the information is stored in the storage unit 12a, the central processing unit 10a specifies the format of the document image data acquired in step S10 by image analysis or the like, and inputs data according to the format. An area including information that needs processing is extracted and divided as divided image data. Further, the format of the document image data may be specified by adding embedded information indicating the format to the document in advance, and reading and analyzing it.

  The area including information that requires input processing is information that identifies the area occupied by information that needs to be input in the document image data. For example, coordinates (X-axis start point, Y-axis start point, width, Information such as height). The attribute refers to information for specifying the content of input information (in the case of a manuscript relating to a bank account, an address, name, account number, amount, etc.). The restriction regarding the input of information refers to the number of characters, the character type, and the like when inputting the information.

  Alternatively, the document image data stored in the storage unit 12a may be read, and the document image may be displayed on the display unit 16a to allow the user to select an area including information that needs to be input. While referring to the document image displayed on the display unit 16a, the user inputs an area including information that needs to be input and an attribute of the information using a pointing device or the like of the input unit 14a. The central processing unit 10a generates divided image data corresponding to the area input by the input unit 14a from the document image data.

  The divided image data divided from the document image data includes coordinate information (X-axis start point, Y-axis start point, width, height) for specifying an area in the document image data for each document image data, information attributes, and input time. It is stored and held in the storage unit 12a in association with the constraint.

  In step S14, a distribution file is generated. This step corresponds to the image dividing unit 21, the divided image data encrypting unit 22, the encryption key encrypting unit 23, and the distribution file generating unit 24 in FIG.

  The distribution file has a data structure as shown in FIG. A distribution file is created for each document image data. The distribution file is given a unique identifier (file name or the like) for specifying the document image data in association with it. The distribution file includes area data, attribute data, constraint data, input data, input certificate, input key encryption data, distribution certificate, distribution key data, input data status flag, and image data. Consists of including. Such information is included in the distribution file for each divided image data.

  The area data refers to an area including information that requires the input process. Attribute data refers to attributes of information that requires the input process. The constraint data refers to constraints at the time of inputting the information that needs to be input.

  The input data is data input using the input-side device 200 by a supplier who has received the distribution file. The input data is transmitted to the input processor provided with a plurality of different input-side devices 200a to 200d, and is included in each divided image data using the respective input-side devices 200a to 200d. It is the data that the input person inputs to the information. The input data is encrypted with the public key of the distribution side device 100. When a plurality of input persons are set for each data, a plurality of input data may be included for each divided image data. In the present embodiment, two persons of input persons 1, 2, input persons 3, 4, input persons 5, 6 and input persons 7, 8 are assigned for each divided image data of address, name, account number, and amount. Yes.

  The certificate of the input person is electronic certificate data for authenticating the encryption key of the input person who inputs in the input side devices 200a to 200d. The encryption key data for input person is encryption key data for decrypting the encrypted divided image data. The encryption key data for the input person may be encrypted with the encryption key (public key) of the input person who inputs the divided image data. The encryption key (public key) of the input person is approved by the data of the input person's certificate.

  The distributor's certificate is data of an electronic certificate for authenticating the encryption key (public key) of the distributor using the distribution side device 100. Distributor encryption key data is data of a public key of a distribution side device for encrypting input data. The encryption key data for the distributor is used when the input data input in the input side devices 200a to 200d is encrypted and returned to the distribution side device 100.

  The input data status flag is a flag indicating the authenticity of the input data. In the present embodiment, specifically, it is a flag indicating whether or not the input data matches when input by a plurality of input persons is performed on one piece of data. In this embodiment, when the input data status flag is 0, there is no input data (data has not been input yet), and when it is 1, a plurality of input data for each divided image data match. This indicates that the plurality of input data for each piece of divided image data do not match.

  The image data is each divided image data. In the present embodiment, the image data of the bank account information is image data of an area including address, name, account number, and amount information. The divided image data is encrypted using an encryption key. The encryption key used to encrypt each divided image data is encrypted with the public key approved by the certificate for each input user of each divided image data and included in the distribution file as the encryption key data for the input user. It is done.

  Such information is included in the distribution file for each divided image data. Since the input data is included in the distribution file in the following data input process, in this step, area data, attribute data, constraint data, input certificate, input key data, distribution certificate, distribution data A process of including the encryption key data, the input data status flag, and the image data in the distribution file is performed. Specifically, processing is performed according to a flowchart of a subroutine shown in FIG. Each processing is performed for each divided image data divided from the document image data to be processed, and data corresponding to all the divided image data is collected as one distribution file for each document image data.

  In step S14-1, each divided image data is encrypted. This step corresponds to the divided image data encryption unit 22. Here, encryption is performed using a different encryption key for each of the divided image data divided from the original image data in step S12. The encryption key may be stored in the storage unit 12a in advance, and the central processing unit 10a may read and apply the divided image data sequentially from the storage unit 12a. Each encrypted divided image data is stored in the storage unit 12a.

  In the present embodiment, for example, the encryption key a for the divided image data A of the address, the encryption key b for the divided image data B of the name, the encryption key c for the divided image data C of the account number, and the divided image data of the amount. D is encrypted using the encryption key d. These encrypted divided image data become image data A, B, C, and D in FIG.

  In step S14-2, the encryption key applied to each divided image data is encrypted. This step corresponds to the encryption key encryption unit 23. The central processing unit 10a encrypts the encryption key applied to each divided image data by using an encryption key that can be decrypted only by an input person who performs input processing of each divided image data. For example, encryption is performed using a public key authenticated by a certificate of an input person who performs input processing of each divided image data. Each input person's encryption key (public key) and its electronic certificate data may be acquired in advance from a trader to which each input person belongs. Each encrypted encryption key is stored in the storage unit 12a.

  In the present embodiment, for the divided image data A of the address, the encryption key a is encrypted with the public key of the input person 1 and the public key of the input person 2. These are the input user encryption key data 1 and the input user encryption key data 2 in FIG. For the divided image data B of the name, the encryption key b is encrypted with the public key of the input person 3 and the public key of the input person 4. These are the input user encryption key data 3 and the input user encryption key data 4 in FIG. For the divided image data C of the account number, the encryption key c is encrypted with the public key of the input person 5 and the public key of the input person 6. These are the input user encryption key data 5 and the input user encryption key data 6 in FIG. For the divided image data D of the amount of money, the encryption key d is encrypted with the public key of the input person 7 and the public key of the input person 8. These are the input user encryption key data 7 and the input user encryption key data 8 in FIG.

  In step S14-3, the distribution file is actually configured. This step corresponds to the distribution file generation means 24. The central processing unit 10a includes area data, attribute data, constraint data, input person electronic certificate, input person encryption key data, distributor electronic certificate, distribution of each divided image data stored in the storage unit 12a. The user's encryption key data and divided image data are read out, and a distribution file is constructed in association with each divided image data.

  In this embodiment, the encryption key data for the input person is the encryption key for each input person encrypted in step S14-2, and the divided image data is each divided image data encrypted in step S14-1. Further, the distributor's electronic certificate and the provider's encryption key data may be stored and held in advance in the storage unit 12a. The input data status flag is set to an initial value “0”.

  When the process of step S14-3 ends, the process returns to step S16 of the main routine of FIG.

  In step S16, the distribution file is distributed to a supplier who performs input processing. This step corresponds to the file transmission / reception means 25 in FIG. The central processing unit 10a distributes the distribution file generated in step S14 to the input side devices 200a to 200d used by the data input person via the interface unit 18a.

  In the example of the present embodiment, the input side device 200a used by the input persons 1 and 2 who input the address, the input side apparatus 200b used by the input persons 3 and 4 who input the name, and the account number are input. The distribution file is transmitted to the input side apparatus 200c used by the input persons 5 and 6, and the input side apparatus 200d used by the input persons 7 and 8 who input the amount of money.

  With the above processing, the distribution file creation and distribution processing is completed.

<Data input process and distribution file reply process>
Next, data input processing and distribution file reply processing in the input side apparatus 200 that has received the distribution file will be described. The data input process and the delivery file return process are executed according to the flowchart shown in FIG. The central processing unit 10b executes the input side program stored in the storage unit 12b and performs the processing from step S20.

  In the present embodiment, the address, name, account number, and amount data to be input are processed by different vendors using different input devices 200a to 200d. In the following description, an address is used as an example. I will explain. Other data can be processed similarly.

  In step S20, distribution file acquisition processing is performed. This step corresponds to the file transmission / reception means 30. The central processing unit 10b receives the distribution file transmitted from the distribution side device 100 to the input side device 200 via the interface unit 18b.

  In step S22, the login process of the data input person is performed. The central processing unit 10b displays a user interface screen that prompts the data input person to log in on the display unit 16b. The user interface screen may prompt the input of the data input person ID and the login password. An input person who inputs data using the input side device 200 inputs data necessary for the login process using the input unit 14b in accordance with the user interface screen. The central processing unit 10b authenticates whether or not the user is a data inputer according to the input data, and permits login if the data inputer. For example, if the input user ID and password match the user ID and password of the input person registered in advance in the storage unit 12b, login is permitted.

  In the present embodiment, the following description will be given on the assumption that the input person 1 or 2 who is in charge of the address has logged in.

  In step S24, the encryption key for each input person included in the distribution file is decrypted. This step corresponds to the encryption key decryption means 31. The central processing unit 10b checks whether the data for the input user who has logged in at step S22 is included in the distribution file received at step S20. If it is included in the distribution file, the secret key of the input person who has logged in is read from the storage unit 12b in step S22, and the encryption key data of the input person is decrypted from the distribution file with the secret key. The secret key of each input person may be registered in advance in the storage unit 12b.

  For example, the image data A is decrypted by decrypting the encryption key data 1 for the input person of the distribution file by using the secret key corresponding to the public key of the input person 1 of the address used in step S14-2. Encryption key a can be obtained. Similarly, when the logged-in user is the input person 2, the encryption key data 2 for the input person in the distribution file is used by using the private key corresponding to the public key of the input person 2 at the address used in step S14-2. The encryption key a for decrypting the image data A can be obtained.

  In step S26, the divided image data included in the distribution file is decoded. This step corresponds to the image data decoding unit 32. The central processing unit 10b uses the encryption key decrypted in step S24 to decrypt the divided image data included in the distribution file and assigned to the logged-in input person.

  At this time, the divided image data that is not input by the input user who is logged in cannot be decrypted because it is encrypted with an encryption key different from the encryption key decrypted in step S24. For example, the image data B, C, and D cannot be decrypted with the encryption key of the input person 1 or 2 of the address decrypted in step S24.

  Further, if the input data status flag is other than “0”, it may be determined that the input of data has already been completed, and the process of not decoding the divided image data in this step may be performed. .

  In step S28, data input processing is performed. This step corresponds to a part of the data input means 33. The central processing unit 10b reproduces an image from the divided image data decoded in step S24 and causes the display unit 16b to display the image. That is, only the divided image data including information to be input is displayed on the display unit 16b as an image. Other divided image data in the document image cannot be reproduced and cannot be reproduced.

  The input user who is logged in confirms the image displayed on the display unit 16b, and inputs information included in the image to the input-side device 200 using the input unit 14b. The central processing unit 10b stores and holds the input data in the storage unit 12b.

  For example, when the input person 1 or 2 is logged in, the image data A decoded in step S26 is displayed on the display unit 16b as an image. As shown in FIG. 9, the image data A includes information regarding an address to be input. In step S26, the image data B, C, and D relating to the name, account number, and amount included in the document image cannot be decrypted, and therefore, such information is not displayed. Accordingly, the input person 1 or 2 visually checks the displayed address information and inputs the data using the input unit 14b.

  In step S30, it is determined whether or not the data input process has been completed for all input persons. This step corresponds to a part of the data input means 38. If data input has been received from all the data input persons registered in the distribution file, the process proceeds to step S32. If not, the logoff process is performed and then the process returns to step S22.

  For example, in the example of the distribution file of the present embodiment, since the input persons 1 and 2 are registered for the address, when the input of the address by the input persons 1 and 2 is accepted, the process proceeds to step S32. Otherwise, after logoff processing is performed, the process returns to step S22, and processing for accepting data input from an input person who has not yet performed input is performed.

  In step S32, the input data is encrypted. This step corresponds to a part of the input data encryption unit 34. The central processing unit 10b encrypts the data input from each input person in the process up to step S30 using the distributor's public key. The public key of the distributor is included as the encryption key data for the distributor of the distribution file. Further, the public key of the distributor is authenticated by a distributor certificate included in the distributor file.

  In step S34, the distribution file is updated. This step corresponds to the distribution file update unit 35. The central processing unit 10b includes the encrypted data as input data in the distribution file.

  For example, the address data input by the input persons 1 and 2 is encrypted with the distributor's public key included in the distribution file as distributor encryption key data associated with the divided image data A. The encrypted address data of the input persons 1 and 2 are associated with the corresponding divided image data and included in the distribution file as input data 1 and 2, respectively.

  Also, the input data status flag is set. The central processing unit 10b determines whether or not all the data received from a plurality of input persons match. If all the data match, the input data status flag is set to “1”; otherwise, it is set to “2”. The set input data status flag is associated with the corresponding divided image data and included in the distribution file.

  In step S36, the distribution file is returned to the distribution side apparatus 100. This step corresponds to the file transmitting / receiving means 30 in FIG. The central processing unit 10b returns the distribution file to the distribution side device 100 that is the distribution source of the distribution file via the interface unit 18b. The delivery file to be returned is updated with the input data (after encryption) and the set input data status flag.

  With the above processing, the data input processing and the delivery file return processing are completed. The data input process and the distribution file reply process are performed for each data to be input in the input side devices 200a to 200d that are the transmission destinations of the distribution file.

<Data assembly process>
In the distribution side apparatus 100, a process of collecting input data for each document image data from the distribution file processed by the data input process and the distribution file return process in each of the input side apparatuses 200a to 200d is performed.

  The data assembly process is executed according to the flowchart shown in FIG. The central processing unit 10a executes the delivery side program stored in the storage unit 12a and performs the processing from step S40. In the following processing, it is assumed that the login processing of the user who uses the distribution-side device 100 has been completed.

  In step S40, a delivery file acquisition process is performed. This step corresponds to the file transmission / reception means 25. The central processing unit 10a receives a distribution file transmitted from the input side devices 200a to 200d with the distribution side device 100 as a destination via the interface unit 18a. The received distribution file is stored and held in the storage unit 12a.

  In the present embodiment, a distribution file containing input address data is received from the input side device 200a in charge of input of address data, and name data already input from the input side device 200b in charge of input of name data. Is received from the input side device 200c in charge of input of account number data, and the input side device 200d in charge of input of money amount data is received from the input side device 200c. Receive a delivery file containing the amount data already entered from.

  In step S42, processing for collecting data included in each distribution file is performed. This step corresponds to the data assembling means 26. The central processing unit 10a reads the distribution file received in step S40 from the storage unit 12a, decrypts the data stored in each distribution file, and associates the data with the original image data that is the source of the distribution file. save.

  Specifically, the address data included in the distribution file received from the input side device 200a in step S40 is read. Since the address data is encrypted with the public key of the distribution-side device 100, it is decrypted using the private key authenticated by the certificate of the distribution-side device 100. Similarly, the data of name, account number, and amount included in the distribution file received from the input side devices 200b to 200d is also decrypted.

  Based on the file name associated with the document image data, the decrypted data is stored and held in the storage unit 12a as an input database for each document image data as shown in FIG.

  Also, as shown in FIG. 11, the input data status flags registered in association with the input data are read from the distribution files received from the input side devices 200a to 200d in step S40, and the input database is associated with each data. You may register with.

  In step S44, processing for the collected data or processing using the collected data is performed. In the present embodiment, a process for confirming whether there is an error in the input by presenting the document image and the input data to the user is performed. This step corresponds to the display means 27.

  The central processing unit 10a reads the document image data to be processed from the storage unit 12, and causes the display unit 16a to display the document image based on the document image data. The central processing unit 10a reads each data registered in association with the document image data to be processed from the input database of the storage unit 12, and displays the data on the display unit 16a together with the document image. .

  For example, in the present embodiment, as shown in FIG. 12, the original image 40 reproduced from the original image data to be processed, and the address and name registered in the input database in association with the original image data. , Account number and amount are displayed on the display unit 16a.

  As a result, the user of the distribution side apparatus 100 visually compares the data included in the document image with the input data, and confirms whether the data input by the input side apparatuses 200a to 200d is correct. it can.

  At this time, the input data status flag registered in association with each data in the input database is referred to. When the input data status flag is “2”, the input data is displayed in a display method different from other input data. It may be emphasized. An input data status flag of “2” indicates that the input data does not match when input by a plurality of input persons, and such input data is displayed in a manner that can be distinguished from other input data. This indicates that there is a high possibility that a data error has occurred such that the data in the document image is difficult to read.

  In FIG. 12, assuming that the input data status flag for the account number is “2”, only the input data for the account number is hatched and displayed.

  Further, when the user visually confirms each data included in the image reproduced on the screen from the document image data and each input data and determines that the input data is incorrect, the distribution side device 100 The input data may be corrected by the user using the input unit 14a.

It is a figure which shows the structure of the data input assistance system in embodiment of this invention. It is a figure which shows the structure of the delivery side apparatus in embodiment of this invention. It is a figure which shows the structure of the input side apparatus in embodiment of this invention. It is a functional block diagram of a data input support system in an embodiment of the invention. It is a flowchart of creation of a delivery file and delivery processing in an embodiment of the present invention. It is a figure which shows the structural example of the delivery file in embodiment of this invention. It is a flowchart of the subroutine of the creation process of the delivery file in embodiment of this invention. It is a flowchart of the data input process and the delivery file reply process in the embodiment of the present invention. It is a figure explaining the input process of the data in embodiment of this invention. It is a flowchart of the data assembly process in embodiment of this invention. It is a figure which shows the example of registration of the input database in embodiment of this invention. It is a figure which shows the example of a display of the confirmation screen of input data in embodiment of this invention. It is a figure explaining the input process of the conventional data. It is a figure explaining the input process of the conventional data.

Explanation of symbols

  10a, 10b Central processing unit, 12a, 12b storage unit, 14a, 14b input unit, 16a, 16b display unit, 18a, 18b interface unit, 20 image acquisition unit, 21 image division unit, 22 divided image data encryption unit, 23 Encryption key encryption means, 24 distribution file generation means, 25 file transmission / reception means, 26 data assembly means, 27 display means, 30 file transmission / reception means, 31 encryption key decryption means, 32 image data decryption means, 33 data input means, 34 input data encryption means, 35 distribution file update means, 100 distribution side apparatus, 200 (200a to 200d) input side apparatus.

Claims (17)

On the computer,
An image dividing step for generating divided image data obtained by extracting an image region including the input target information from document image data including input target information that requires input by a data input person;
A divided image data encryption step for encrypting the divided image data so that only a data input person of the input target information included in the divided image data can decrypt the data;
A distribution file generating step for generating a distribution file including the encrypted divided image data for each document image data;
A file transmission step of transmitting the distribution file to an input side device used by a data input person;
A distribution-side program that executes processing including: It is the delivery side program of Claim 1, Comprising:
Encryption key encryption step of encrypting the first encryption key used for encrypting the divided image data by using a second encryption key that can be decrypted only by a data input person of the input target information included in the divided image data Is further executed on the computer,
In the distribution file generation step, the encrypted divided image data and the second encryption key are associated with each other and included in the distribution file. The distribution-side program according to claim 1 or 2,
The distribution file generation step includes the encrypted divided image data and region specifying information for specifying an image region in which the image of the divided image data occupies the original image is included in the distribution file. Distribution side program to perform. It is the delivery side program as described in any one of Claims 1-3,
The distribution file generating step includes associating the encrypted divided image data with attribute information indicating attributes of input target information included in the divided image data in a distribution file. . It is the delivery side program as described in any one of Claims 1-4,
In the distribution file generation step, the encrypted divided image data and restriction information indicating restriction when inputting the input target information included in the divided image data are associated and included in the distribution file. Distribution side program to perform. On the computer,
A file receiving step for receiving a distribution file including divided image data obtained by encrypting image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person; ,
An image data decrypting step for decrypting the encrypted divided image data included in the distribution file;
A data input step of presenting information included in the decoded divided image data to a data input person and receiving an input of data by the data input person;
A distribution file update step of including the input data obtained in the data input step in the distribution file in association with the divided image data;
A file transmission step of returning the distribution file to a distribution-side distribution device;
An input-side program that executes processing including: The input side program according to claim 6,
Causing the computer to further execute an encryption key encryption step of encrypting the input data with an encryption key that can be decrypted only by a user of the distribution side device;
In the distribution file update step, the encrypted input data is included in the distribution file in association with the divided image data. The input side program according to claim 6 or 7,
When the divided image data included in the distribution file is associated with an encrypted encryption key that can be decrypted only by a data input person of the input target information included in the divided image data, the encryption key The computer further executes an encryption key decryption step for decrypting
In the image data decrypting step, the encrypted divided image data included in the distribution file is decrypted using the decrypted encryption key. An input-side program according to any one of claims 6 to 8,
When area specifying information for specifying an image area occupied by the image of the divided image data in the original image is associated with the divided image data included in the distribution file,
The data input step displays the divided image data in an image area in the document image corresponding to information specifying the image area and presents it to the user. An input-side program according to any one of claims 6 to 9,
When the restriction information indicating the restriction when inputting the input target information included in the divided image data is associated with the divided image data included in the distribution file,
The data input step restricts data input by a data input person according to the restriction information. It is an input side program as described in any one of Claims 6-10, Comprising:
A plurality of data input persons are set for one piece of input target information included in any of the divided image data, and the input data input by the plurality of data input persons in the data input step is different. If
The distribution file update process sets a data status flag indicating the difference, and associates it with the divided image data and includes it in the distribution file. On the computer,
Split image data obtained by encrypting image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person, and input data associated with the split image data And a file receiving step for receiving a distribution file including:
A data assembling step for collecting the input data included in the distribution file received in the file reception step and associated with the same document image data into one input database;
A distribution-side program that executes processing including: It is a delivery side program of Claim 12, Comprising:
When the distribution file includes the divided image data, input data associated with the divided image data, and a data status flag indicating the authenticity of the input data,
An image reproduced from the divided image data and input data associated with the divided image data are displayed, and the input data is displayed according to a data status flag associated with the divided image data at the time of display. A distribution-side program, wherein a display mode is changed and displayed. Image dividing means for generating divided image data obtained by extracting an image region including the input target information from document image data including input target information that requires input by a data input person;
A divided image data encryption means for encrypting the divided image data so that only a data input person of the input target information included in the divided image data can decrypt the data;
A distribution file generating means for generating a distribution file including the encrypted divided image data for each document image data;
A file transmission means for transmitting the distribution file to an input side device used by a data input person;
A distribution-side device comprising: File receiving means for receiving a distribution file including divided image data obtained by encrypting image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person; ,
Image data decrypting means for decrypting the encrypted divided image data included in the distribution file;
Data input means for presenting information included in the decoded divided image data to a data input person and receiving data input by the data input person;
A delivery file update means for including the input data obtained by the data input means in the delivery file in association with the divided image data;
File transmission means for returning the distribution file to the distribution-side distribution device;
An input side device comprising: Split image data obtained by encrypting image data obtained by extracting an image area including the input target information from document image data including input target information that requires input by a data input person, and input data associated with the split image data And a file receiving means for receiving a distribution file including:
A data assembling unit for collecting input data included in a distribution file received by the file receiving unit and associated with the same document image data in one input database;
A distribution-side device comprising: Image dividing means for generating divided image data obtained by extracting an image region including the input target information from document image data including input target information that requires input by a data input person;
A divided image data encryption means for encrypting the divided image data so that only a data input person of the input target information included in the divided image data can decrypt the data;
A distribution file generating means for generating a distribution file including the encrypted divided image data for each document image data;
First file transmission means for transmitting the distribution file to an input side device used by a data input person;
First file receiving means for receiving a delivery file returned from the input side device;
A data assembling unit for collecting input data included in a distribution file received by the file receiving unit and associated with the same document image data in one input database;
A distribution side device comprising:
Second file receiving means for receiving a distribution file transmitted from the distribution side device;
Image data decrypting means for decrypting the encrypted divided image data included in the distribution file;
Data input means for presenting information included in the decoded divided image data to a data input person and receiving data input by the data input person;
A distribution file updating unit that includes the input data obtained by the data input unit in the distribution file in association with the divided image data;
A second file sending means for returning the delivery file to the delivery-side delivery device;
An input side device comprising:
A data input support system comprising:

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