JP6086416B1 - Data processing system, data management device, method and program, data processing device, method and program - Google Patents

Abstract

To provide a data management apparatus capable of processing data without holding original data generated by a provider as it is. A division unit that divides image data, and a linkage that generates linkage information by associating each divided image data divided by the division unit with an entry number indicating a part of the original image data. Information generation unit 12, divided image data transmission unit 13 that transmits the divided image data divided by division unit 11 to data processing device 4 in any order, and a process that receives post-processing data transmitted from data processing device 4 The post-data receiving unit 14, the specifying unit 15 for specifying the entry number of the post-processing data received by the post-processing data receiving unit 14 based on the connection information, and the original image data from the entry number specified by the specifying unit 15 And a connecting unit 16 for associating post-processing data constituting the. [Selection] Figure 2

Description

  The present invention relates to a data processing system, a data management apparatus, a method and a program for processing data, a data processing apparatus, a method and a program.

  In recent years, a service called BPO (Business Process Outsourcing) has been provided. BPO refers to entrusting part of the company's business processes to an external company.

  For example, in the BPO service, there is a form in which processing for converting a handwritten application form, an account transfer request form, and the like into text is outsourced to an external company. In this form, an application form or the like is read by an image scanner or the like and converted into image data, and the converted image data is transmitted to an external company via a network such as the Internet.

  However, when transmitting image data via a network, the image data may be leaked to a third party.

  Japanese Patent Application Laid-Open No. 2004-133260 discloses a technique that can perform encryption for each transmission frame when transmitting an image, and in particular, can select whether encryption is performed for each transmission frame or not.

Japanese Patent Laid-Open No. 06-54325

  By the way, when personal information is included in the data, even if encryption is performed, the data is stored as it is on a PC of an external company, which is a problem from the viewpoint of data safety management. It is not sufficient to simply perform encryption.

  According to the present invention, a data processing system, a data management device, a method and a program, a data processing device, a method and a program capable of processing data without holding the original data generated by the provider as it is The purpose is to provide.

To achieve the above object, a data processing system according to an aspect of the present invention is a data processing system in which a data management device and a data processing device are connected via a network, and the data management device divides image data. A dividing unit for generating the connection information by associating each divided image data divided by the dividing unit with an entry number indicating a part of the original image data, and the dividing unit. Based on the divided information, a divided image data transmitting unit that transmits the divided divided image data to the data processing device in random order, a post-processing data receiving unit that receives post-processing data transmitted from the data processing device, and the connection information The specifying unit for specifying the entry number of the post-processing data received by the post-processing data receiving unit and the specifying unit A segmented image for receiving segmented image data transmitted in random order from the segmented image data transmitting unit. A data reception unit; and a post-processing data transmission unit that transmits post-processing data of the divided image data to the data management device. In the data management device, the connection information generation unit is divided by the division unit. An item number transmission that generates an association number by associating each divided image data with an entry number indicating a part of the original image data and a unique item number, and transmits the item number to the data processing device Section, a key receiving unit that receives the encryption key transmitted from the data processing device, and the item number by the encryption key received by the key receiving unit. An encryption unit that encrypts the divided image data of the item number transmitted by the transmission unit, and the divided image data transmission unit receives an item number corresponding to the encrypted divided image data encrypted by the encryption unit. And transmitting to the data processing device, the specifying unit specifies an entry number from the item number attached to the post-processing data received by the post-processing data receiving unit based on the connection information, A data processing device includes a key generation unit that generates a unique encryption key for the item number transmitted from the item number transmission unit, and a key that transmits the encryption key generated by the key generation unit to the data management device The transmitting unit and the divided image data receiving unit receive the encrypted divided image data transmitted from the divided image data transmitting unit, and the encrypted image received by the divided image data receiving unit. An encrypted divided image data decrypting unit that decrypts the encrypted divided image data, and the post-processing data transmission unit attaches a corresponding item number and transmits the processed data to the data management device .

  In the data processing system according to the aspect of the present invention, the data processing device transmits a key generation unit that generates an encryption key that is valid for a predetermined period, and the encryption key generated by the key generation unit to the data management device. A key transmission unit, wherein the data management device receives a cryptographic key transmitted from the data processing device, and a cipher that encrypts the divided image data with the cryptographic key received by the key reception unit. The divided image data transmission unit may transmit the divided image data encrypted by the encryption unit to the data processing device in any order.

  Further, in the data processing system according to one aspect of the present invention, the post-processing data transmission unit encrypts the post-processing data, transmits the encrypted post-processing data to the data management device, and the data management device May include a post-encryption data decryption unit that decrypts the post-encryption data transmitted from the post-process data transmission unit.

  In the data processing system according to an aspect of the present invention, the data processing device includes a data processing unit that processes the divided image data received by the divided image data receiving unit, and the post-processing data transmission unit includes the data The configuration may be such that post-processing data processed by the processing unit is transmitted to the data management device.

  In the data processing system according to the aspect of the present invention, the data processing device includes a reception unit that receives an input operation based on the divided image data received by the divided image data reception unit, and the post-processing data transmission unit includes: The post-processing data based on the input operation received by the receiving unit may be transmitted to the data management device.

  In the data processing system according to the aspect of the present invention, the dividing unit divides the image data into items, and the data processing unit performs character recognition processing on the divided image data to convert it into text data. The post-processing data transmission unit may transmit the text data converted by the data processing unit to the data management apparatus as the post-processing data.

  In the data processing system according to an aspect of the present invention, the dividing unit extracts a feature portion of image data, and the data processing unit performs image recognition processing on the divided image data to generate image recognition data. The post-processing data transmission unit may transmit the image recognition data generated by the data processing unit to the data management apparatus as the post-processing data.

In order to achieve the above object, a data management apparatus according to an aspect of the present invention includes a dividing unit that divides image data, and each divided image data divided by the dividing unit is part of the original image data. a divided image data transmission unit for transmitting to the data processing device and the connection information generation unit for generating the connection information in association with the entry number, the divided image data divided by the division unit in random order to show that, from the data processing device A post-processing data receiving unit that receives transmitted post-processing data, a specifying unit that specifies an entry number of the post-processing data received by the post-processing data receiving unit based on the connection information, and the specifying unit and a connecting portion for connecting the processed data that constitute the original image data from the identified entry number, the connection information generation unit, the dividing unit The division information is generated by associating each divided image data with an entry number indicating that it is a part of the original image data and a unique item number, and transmitting the item number to the data processing device. Item number transmission unit, key reception unit that receives an encryption key transmitted from the data processing device, and divided image data of the item number transmitted by the item number transmission unit by the encryption key received by the key reception unit And the divided image data transmission unit sends an item number corresponding to the encrypted divided image data encrypted by the encryption unit to the data processing device, The specifying unit specifies an entry number from an item number attached to the post-processing data received by the post-processing data receiving unit based on the connection information .

In order to achieve the above object, a data management method according to an aspect of the present invention includes a dividing step of dividing image data, and each divided image data divided by the dividing step is part of the original image data. A link information generation step for generating link information by associating an entry number indicating that, an item number transmission step for transmitting the item number to the data processing device, and a key reception for receiving the encryption key transmitted from the data processing device A step of encrypting the divided image data of the item number transmitted in the item number transmission step with the encryption key received in the key reception step, and the divided image data divided in the division step in no particular order. A divided image data transmission step for transmitting to the data processing device; and a post-processing data reception for receiving post-processing data transmitted from the data processing device. A step of specifying the entry number of the post-processing data received by the post-processing data receiving step based on the link information, and a process of configuring the original image data from the entry number specified in the specifying step A link step for linking subsequent data, and the link information generation step includes, in each divided image data divided by the division step, an entry number indicating a part of the original image data, and a unique The divided image data transmission step attaches an item number corresponding to the encrypted divided image data encrypted in the encryption step to the data processing device. transmitted, the specific process, the entry from the based on the connection information, the item number assigned to the processed data received by the post-processing data receiving step To identify the number.

In order to achieve the above object, a data management program according to an aspect of the present invention is a part of original image data in a dividing step of dividing image data and each divided image data divided by the dividing step. A link information generation step for generating link information by associating an entry number indicating that, an item number transmission step for transmitting the item number to the data processing device, and a key reception for receiving the encryption key transmitted from the data processing device A step of encrypting the divided image data of the item number transmitted in the item number transmission step with the encryption key received in the key reception step, and the divided image data divided in the division step in no particular order. A divided image data transmission step for transmitting to the data processing device; and a post-processing data for receiving the post-processing data transmitted from the data processing device. The original image data is composed of the data receiving step, the specifying step for specifying the entry number of the post-processing data received by the post-processing data receiving step based on the connection information, and the entry number specified in the specifying step A connection step of connecting the post-processing data to each other by a computer, wherein the connection information generation step adds one piece of original image data to each divided image data divided by the division step. The link information is generated by associating an entry number indicating that it is a part with a unique item number, and the divided image data transmission step corresponds to the encrypted divided image data encrypted in the encryption step. It is denoted by the item number and transmitted to the data processing apparatus, wherein the identifying step is based on the connection information, by the post-processing data receiving step Is a program that identifies the entry number from the entry number assigned to signal the processed data.

To achieve the above object, a data processing device according to an aspect of the present invention includes a key generation unit that generates a unique encryption key for an item number transmitted from an item number transmission unit of a data management device, A key transmission unit that transmits the encryption key generated by the key generation unit to the data management device, and a divided image data reception unit that receives the encrypted divided image data transmitted in random order from the divided image data transmission unit of the data management device When the divided image data and the encrypted divided image data decoding unit for decoding the encrypted split image data received by the receiving unit, the post-processing data of the divided image data decoded by said encrypted split image data decoding section data a processed data transmitting unit that transmits to the management apparatus, the processed data transmission unit, the post-processing data are denoted by the corresponding item number data Sent to the management apparatus.

In order to achieve the above object, a data processing method according to an aspect of the present invention includes a key generation step of generating a unique encryption key for an item number transmitted from an item number transmission unit of a data management device, A key transmission step for transmitting the encryption key generated by the key generation step to the data management device; and a divided image data reception for receiving encrypted divided image data transmitted in random order from the divided image data transmission unit of the data management device An encrypted divided image data decrypting step for decrypting the encrypted divided image data received by the divided image data receiving step, and processed data of the divided image data decrypted by the encrypted divided image data decrypting step A post-processing data transmission step for transmitting to the data management device, and the post-processing data transmission step is assigned a corresponding item number. Transmitting the management data after the data management device.

To achieve the above object, a data processing program according to an aspect of the present invention includes a key generation step of generating a unique encryption key for an item number transmitted from an item number transmission unit of a data management device; A key transmission step for transmitting the encryption key generated by the key generation step to the data management device; and a divided image data reception for receiving encrypted divided image data transmitted in random order from the divided image data transmission unit of the data management device An encrypted divided image data decrypting step for decrypting the encrypted divided image data received by the divided image data receiving step, and processed data of the divided image data decrypted by the encrypted divided image data decrypting step A data processing program for realizing a post-processing data transmission process to be transmitted to a data management device by a computer A beam, the processed data transmitting step is a post-processing data are denoted by the corresponding item number programs to be transmitted to the data management device.

  According to the present invention, data processing can be performed without retaining the original data generated by the provider as it is.

It is a figure which shows the structure of a data processing system. It is a block diagram which shows the structure of a data management apparatus. It is a figure where it uses for description about the procedure which produces | generates divided image data from image data. It is a figure which shows the structure of connection information. It is a block diagram which shows the 1st structure of a data processor. It is a block diagram which shows the structure of a data processing part. It is a figure which shows typically the mode of the feature extraction and vector conversion by an image recognition part. It is a figure which shows typically the mode of determination of the character type by an image recognition part. It is a figure where it uses for description about the procedure which extracts a feature part from image data. It is a 1st figure with which it uses for description about the flow of operation | movement of a data processing system. It is a 2nd figure with which it uses for description about the flow of operation | movement of a data processing system. It is a 3rd figure with which it uses for description about the flow of operation | movement of a data processing system. It is a 4th figure with which it uses for description about the flow of operation | movement of a data processing system. It is a block diagram which shows the 2nd structure of a data processor.

  Hereinafter, a data processing system, a data management device, a method and a program, a data processing device, a method and a program according to an embodiment of the present invention will be described with reference to the drawings. In all the drawings for explaining the embodiments, common constituent elements are denoted by the same reference numerals, and repeated explanation is omitted.

  In the following, as an example, on the customer terminal device side, the image data to be processed is divided, and the divided divided image data is transmitted to the data processing device in random order, and the data processing device side performs predetermined processing on the divided image data. Data processing without transmitting the original image data generated by the customer terminal device, which is the provider, to the data processing device side as it is by sending the processed data to the customer terminal device. The configuration and operation of a data processing system that processes data in the apparatus will be described.

  In the data processing system 1, as shown in FIG. 1, a customer terminal device 2 to which a data management device 3 is connected and a data processing device 4 are connected via a network N. The customer terminal device 2 is an information processing device such as a smartphone, a tablet, or a personal computer (PC). The data management device 3 is a small computer device having a CPU, a memory, an interface, and the like. The customer terminal device 2 and the data management device 3 are connected to each other via a predetermined interface (for example, USB (registered trademark) or LAN) so that they can communicate with each other. Further, the connection between the customer terminal device 2 and the data management device 3 may be wired or wireless. The customer terminal device 2 and the data management device 3 may be connected via the network N. In the following description, the data management device 3 is described as existing independently of the customer terminal device 2, but the present invention is not limited thereto, and each component of the data management device 3 is included in the customer terminal device 2. It may be a configuration.

  As shown in FIG. 2, the data management device 3 includes a storage unit 10, a division unit 11, a link information generation unit 12, a divided image data transmission unit 13, a post-processing data reception unit 14, and a specification unit 15. The connecting part 16 is provided.

  The dividing unit 11 divides the image data transmitted from the customer terminal device 2. The dividing unit 11 stores the divided divided image data in the storage unit 10. Specifically, the dividing unit 11 converts each divided image data into binary binary data (hereinafter referred to as image binary information), and stores the converted image binary information in the storage unit 10. In this embodiment, “divided image data” and “image binary information” are treated as synonymous.

  Here, a procedure for generating the divided image data will be described. The customer terminal device 2 images the document with a scanner or the like and converts it into image data, and transmits the converted image data to the dividing unit 11 of the data management device 3. For example, the dividing unit 11 reads image data, and divides the image data for each item based on coordinate data indicating a place where an item of the document to be captured is arranged in advance. The dividing unit 11 may read the image data, perform structural analysis such as ruled line extraction, frame structure analysis, and position estimation of the reading target frame, and divide the image data for each item. In the example shown in FIG. 3, the image data A is divided into four data (divided image data a1 to a4).

  The link information generation unit 12 refers to the storage unit 10 and generates link information by associating each divided image data divided by the division unit 11 with an entry number indicating a part of the original image data. The connection information generation unit 12 stores the generated connection information in the storage unit 10. The connection information includes a unique item number as will be described later. Note that other items (for example, item genres such as “name” and “address”) may be added to the connection information.

  Here, a specific example of the connection information will be described with reference to FIG. As shown in FIG. 4, the connection information L includes an entry number (entry ID in FIG. 4), image binary information, and an item number (item ID in FIG. 4). The entry ID is an ID for associating the divided image data with the original image data. As described above, the image binary information is binary data of each divided image data. The item ID is a unique ID associated with the divided image data as described above.

  In the example illustrated in FIG. 4, the entry ID “A1” is associated with the image binary information “4D5A 003B AF38 0871...” Of the divided image data “a1” and the item ID “ABX1. The entry ID “A2” is associated with the image binary information “FF00 53DA 88BB FFDD...” Of the divided image data “a2” and the item ID “QB14. Is associated with the image binary information “BBFA 8800 BD54 600F...” Of the divided image data “a3” and the item ID “56Z7...”, And the entry ID “A4” includes the divided image data. “A4” image binary information “CC00 FAFF BA5D 3300...” And item ID “19QZ. And the entry ID “B1” are associated with the image binary information “51AA SS11 15WE 001D...” Of the divided image data “b1” and the item ID “1DDG. The entry ID “B2” is associated with the image binary information “ER45 45TY FD34 MN22...” Of the divided image data “b2” and the item ID “15DG.

  The divided image data transmission unit 13 accesses the storage unit 10 to read out the divided image data, and transmits the divided image data divided by the dividing unit 11 to the data processing device 4 in any order. For example, there are n pieces of image data (image data A, B, C...), And m pieces of divided image data (divided image data a1, a2... B1, b2... C1, c2). ..)), The divided image data transmission unit 13 transmits the divided image data b2 of the image data B to the data processing device 4, and then the divided image data f4 of the image data F to the data processing device 4. Next, the divided image data a3 of the image data A is transmitted to the data processing device 4, and the divided image data of all the image data is transmitted to the data processing device 4 in any order. By transmitting the divided image data to the data processing device 4 in this order, it is possible to make it difficult for the data processing device 4 to generate the original image data from the transmitted divided image data.

  The post-processing data receiving unit 14 receives post-processing data transmitted from the data processing device 4.

  The identifying unit 15 identifies the entry number of the processed data received by the processed data receiving unit 14 based on the connection information stored in the storage unit 10.

  The connecting unit 16 connects the post-processing data constituting the original image data from the entry number specified by the specifying unit 15.

  Further, as shown in FIG. 5, the data processing device 4 includes a storage unit 30, a divided image data reception unit 31, and a post-processing data transmission unit 33.

  The divided image data reception unit 31 receives the divided image data transmitted from the divided image data transmission unit 13 in any order. The divided image data receiving unit 31 stores the received divided image data in the storage unit 30. The processed data transmission unit 33 accesses the storage unit 30 to read out the processed data, and transmits the processed data of the read divided image data to the data management apparatus 3.

  Here, a configuration for generating post-processing data of the divided image data will be described. The post-processing data is generated by the data processing unit 32 as shown in FIG. The data processing unit 32 processes the divided image data received by the divided image data receiving unit 31. Specifically, the data processing unit 32 accesses the storage unit 30 to read the divided image data, and processes the read divided image data. The data processing unit 32 stores the processed divided image data (hereinafter referred to as post-processing data) in the storage unit 30. The specific configuration and operation of the data processing unit 32 will be described later.

  The post-processing data transmission unit 33 transmits the post-processing data processed by the data processing unit 32 to the data management device 3. Specifically, the processed data transmission unit 33 accesses the storage unit 30 to read the processed data, and transmits the read processed data to the data management device 3.

  Therefore, the data processing system 1 divides the image data to be processed in the data management device 3 connected to the customer terminal device 2, and transmits the divided image data to the data processing device 4 in any order. 4, a predetermined process is performed on the divided image data, and the processed data is transmitted to the data management apparatus 3, so that the original image data generated by the customer terminal apparatus 2 that is the provider is kept as it is. Thus, the data processing device 4 can process the data without the data processing device 4 holding it.

  The divided image data divided by the data management device 3 may be transmitted directly from the data management device 3 to the data processing device 4 via the network N, or once transmitted to the customer terminal device 2, The data may be transmitted from the terminal device 2 to the data processing device 4 via the network N. Further, the post-processing data processed by the data processing device 4 may be transmitted directly to the data management device 3 via the network N, or once transmitted to the customer terminal device 2 via the network N, The data may be transmitted from the customer terminal device 2 to the data management device 3.

  Further, as shown in FIG. 2, the data management device 3 includes an item number transmission unit 17, a key reception unit 18, and an encryption unit 19. Note that the encryption method of the present embodiment may be a common key method or a public key method.

  As shown in FIG. 4, the link information generation unit 12 associates each divided image data divided by the division unit 11 with an entry number indicating that it is a part of the original image data and a unique item number. To generate link information.

  The item number transmission unit 17 refers to the connection information stored in the storage unit 10 and transmits the item number to the data processing device 4.

  The key receiving unit 18 receives the encryption key transmitted from the data processing device 4. The encryption key is a unique key corresponding to a unique item number.

  The encryption unit 19 encrypts the divided image data of the item number transmitted by the item number transmission unit 17 with the encryption key received by the key reception unit 18. The encryption unit 19 stores the encrypted divided image data (hereinafter referred to as encrypted divided image data) in the storage unit 10. The encryption unit 19 encrypts the divided image data and then discards the encryption key without saving it.

  The divided image data transmission unit 13 accesses the storage unit 10 to read out the encrypted divided image data, attaches item numbers corresponding to the encrypted divided image data, and transmits them to the data processing device 4 in any order.

  The specifying unit 15 receives post-processing data from the post-processing data receiving unit 14 of the data processing device 4 and enters from the item number attached to the post-processing data based on the link information stored in the storage unit 10. Identify the number.

  Therefore, the data processing system 1 divides the image data to be processed in the data management device 3 connected to the customer terminal device 2, and the unique encryption generated from the item number by the data processing device 4 into the divided image data. Since the data is encrypted with the key and transmitted to the data processing device 4 in any order, the data processing device 4 does not hold the original image data generated by the customer terminal device 2 as the provider as it is. 4 can process the data.

  Further, the data processing device 4 includes a key generation unit 34, a key transmission unit 35, and an encrypted divided image data decryption unit 36, as shown in FIG.

  The key generation unit 34 generates a unique encryption key for the item number transmitted from the item number transmission unit 17. In the present embodiment, it is assumed that each time an item number is transmitted from the data management device 3, a unique encryption key is generated for the item number. However, the present invention is not limited to this. For example, the key generation unit 34 may be configured to generate an encryption key that is valid for a predetermined period (for example, 3 hours from the time of issuance) and transmit the generated encryption key to the data management device 3. In the case of this configuration, the key generation unit 34 newly generates an encryption key and transmits the generated new encryption key to the data management device 3 when a predetermined period elapses. According to such a configuration, the data processing device 4 does not need to frequently generate an encryption key, and can reduce the processing load.

  The key transmission unit 35 transmits the encryption key generated by the key generation unit 34 to the data management device 3.

  Further, the divided image data receiving unit 31 receives the encrypted divided image data transmitted from the divided image data transmitting unit 13 of the data management device 3. The divided image data receiving unit 31 stores the received encrypted divided image data in the storage unit 30.

  The encrypted divided image data decrypting unit 36 decrypts the encrypted divided image data received by the divided image data receiving unit 31. Specifically, the encrypted divided image data decrypting unit 36 accesses the storage unit 30 to read the encrypted divided image data, and decrypts the read encrypted divided image data. The encrypted divided image data decrypting unit 36 stores the decrypted encrypted divided image data in the storage unit 30.

  The data processing unit 32 processes the divided image data decrypted by the encrypted divided image data decrypting unit 36. Specifically, the data processing unit 32 accesses the storage unit 30 to read the decoded divided image data, and processes the read divided image data. The data processing unit 32 stores the processed divided image data (hereinafter referred to as post-processing data) in the storage unit 30. The specific configuration and operation of the data processing unit 32 will be described later.

  The post-processing data transmission unit 33 transmits the post-processing data processed by the data processing unit 32 to the data management device 3. Specifically, the post-processing data transmission unit 33 accesses the storage unit 30 to read out the post-processing data, attaches an item number corresponding to the read out post-processing data, and transmits it to the data management device 3.

  Therefore, the data processing system 1 generates a unique encryption key based on the item number in the data processing device 4 and transmits it to the data management device 3, and receives the divided image data encrypted by the encryption key. Since the predetermined processing is performed on the divided image data after decoding and the processed data is transmitted to the data management device 3, the original image data generated by the customer terminal device 2 that is the provider is kept as it is. Data processing can be performed without holding.

  The post-processing data transmission unit 33 encrypts the post-processing data processed by the data processing unit 32 and transmits the encrypted post-processing data (hereinafter referred to as “encrypted processing data”) to the data management apparatus 3. The structure to do may be sufficient.

  In the case of this configuration, the data management device 3 includes an encrypted data decryption unit 20 that decrypts the encrypted data transmitted from the processed data transmission unit 33, as shown in FIG.

  Specifically, the post-processing data receiving unit 14 receives the post-encryption data. Since the received post-processing data is encrypted, the post-processing data receiving unit 14 sends the data to the post-encryption data decrypting unit 20. The post-encryption data decryption unit 20 transmits an item number corresponding to the post-encryption data to the data processing device 4 and requests generation of a decryption key. The data processing device 4 generates a unique decryption key based on the received item number and transmits it to the data management device 3.

  The key receiving unit 18 receives the decryption key from the data processing device 4 and sends the received decryption key to the data decryption unit 20 after the encryption process. The post-encryption data decryption unit 20 decrypts the post-encryption data using the decryption key, and sends the decrypted data (post-process data) to the specifying unit 15.

  The identifying unit 15 identifies the entry number of the post-processing data sent from the post-encryption data decrypting unit 20 based on the connection information stored in the storage unit 10.

  Therefore, the data processing system 1 encrypts the processed data processed by the data processing unit 32, transmits the encrypted data to the data management device 3, and sets the item number transmitted from the data management device 3. Since a unique decryption key is generated and transmitted to the data management device 3, the processed data can be safely transmitted to the data management device 3. The data processing system 1 may have a configuration in which an encryption key is generated by the data management device 3 or transmitted to the data processing device 4 without encryption of the divided image data, although the security level is lowered.

<First Example of Data Processing Unit 32>
The dividing unit 11 may be configured to divide the image data for each predetermined item. In the case of this configuration, the data processing unit 32 performs character recognition processing of the divided image data and converts it into text data. Further, the post-processing data transmission unit 33 transmits the text data converted by the data processing unit 32 to the data management device 3 as post-processing data.

  Here, a first embodiment of the data processing unit 32 will be described. In the following description, image data obtained by imaging an account transfer request form in which information (for example, name, account number, etc.) that can identify an individual in a plurality of items is handwritten with a scanner or the like will be described. A description will be given assuming that the divided divided image data is transmitted from the data management device 3 to the data processing device 4.

  Conceptually, the data processing unit 32 uses an algorithm for learning a multi-layer neural network including an input layer, one or a plurality of intermediate layers, and an output layer by back propagation (error back propagation method). Character recognition.

  Specifically, as illustrated in FIG. 6, the data processing unit 32 includes a storage unit 50, an image recognition unit 51, a natural language processing unit 52, a determination unit 53, and an output unit 54.

  The storage unit 50 is described as a dedicated storage unit of the data processing unit 32, but may be configured as a part of the storage unit 30. The image recognition unit 51 recognizes the divided image data and generates text. The natural language processing unit 52 performs natural language processing on the text generated by the image recognition unit 51. The determination unit 53 compares the text generated by the image recognition unit 51 with the text subjected to natural language processing by the natural language processing unit 52. Further, the data processing unit 32 includes an output unit 54 that outputs the text output from the determination unit 53. The output unit 54 stores the text output from the determination unit 53 in the storage unit 30 as post-processing data. In addition, the data processing unit 32 causes the image recognition unit 51, the natural language processing unit 52, and the determination unit 53 to function independently, and each output result affects the output result. The text of is output.

  Here, the operation of the image recognition unit 51 will be described. The image recognition unit 51 extracts a character line to be read based on the divided image data. The image recognition unit 51 cuts out character pattern candidates from the character line image and performs character identification of each character pattern.

Next, a character identification procedure will be described. As shown in FIG. 7, the image recognition unit 51 performs feature extraction on the divided image data of one extracted character pattern. Then, the image recognition unit 51 extracts the direction component of the character stroke and converts the divided image data into one vector. In the example illustrated in FIG. 7, a state in which the divided image data X is input to a multilayer neural network and features are extracted by capturing features such as directions and positions is schematically illustrated. Further, in the example illustrated in FIG. 7, a state in which the vector X ₁ , the vector X _2, and the vector X ₃ are converted is schematically illustrated.

  As shown in FIG. 8, the image recognition unit 51 determines what the character type is based on the converted vector. In this determination, the image recognition unit 51 refers to dictionary data that holds which character type is distributed on which side in the feature space from the state of distribution using a large number of patterns in advance, and is unknown The candidate of divided image data that is the input pattern is determined. The example shown in FIG. 8 conceptually shows that the dictionary data stores information on the character type “medium”, the character type “Sen”, and the character type “ten”.

  The image recognizing unit 51 acquires a plurality of text candidates (for example, middle, sing, ten) and the likelihood of each text candidate by the above process. The likelihood of each text candidate can be calculated by the distance between the center of each candidate in the feature space and the divided image data that is an unknown input pattern.

  As shown in FIG. 6, the image recognition unit 51 includes a first image recognition unit 51a and a second image recognition unit 51b.

  The first image recognition unit 51a reads the divided image data from the storage unit 50, extracts feature points from the divided image data using a multilayer neural network, and outputs a plurality of text candidates and likelihoods.

  The second image recognition unit 51b reads the divided image data from the storage unit 50, extracts feature points from the divided image data using a multi-layer neural network, and separates it into a prime factor text that is a factor smaller than the text. Output text candidates and likelihood.

  The main difference between the first image recognition unit 51a and the second image recognition unit 51b is a difference in learning data used when performing machine learning for image recognition. The first image recognition unit 51a prepares learning data so that one character is output as one character, whereas the second image recognition unit 51b separates one character into a prime factor text that is a smaller factor. Learning data is prepared for output.

  Therefore, since the data processing unit 32 repeats the process for a document containing various handwritten characters until a predetermined likelihood or more is obtained, it is possible to perform highly reliable and highly accurate character recognition.

  Further, the determination unit 53 may be configured so that, among the text candidates output by the natural language processing unit 52, a text candidate having a high likelihood is treated with priority over the text candidate output by the first image recognition unit 51a. .

  In the case of this configuration, the data processing unit 32 gives priority to the processing by the natural language processing unit 52, so that it can be said that the data processing unit 32 is suitable for natural language processing, and exhibits strength in character recognition of sentences.

  In addition, the determination unit 53 may be configured to determine that the text has a likelihood equal to or higher than a predetermined value and output the difference when the difference between the two text candidates does not exceed a predetermined threshold value. In other words, when the text candidate output by the natural language processing unit 52 and the text candidate output by the first image recognition unit 51a substantially coincide with each other, the determination unit 53 uses a text having a likelihood greater than or equal to a predetermined value. Judge that there is.

  In the case of this configuration, the data processing unit 32 performs character recognition using the results of the two processes of the natural language processing unit 52 and the first image recognition unit 51a, and thus performs character recognition with high accuracy. be able to.

  As illustrated in FIG. 6, the data processing unit 32 may include a setting unit 55 that sets a time required for processing. For example, the setting unit 55 sets the processing time to 10 minutes or the like in accordance with a user instruction.

  The determination unit 53 compares the text candidate having the highest likelihood output from the first image recognition unit 51a with the text candidate having the highest likelihood output from the natural language processing unit 52, and has a likelihood greater than or equal to a predetermined value. In the case where the values are not obtained, the other candidates are compared in descending order of likelihood until a certain likelihood or more is obtained within the time set by the setting unit 55.

  Therefore, since the data processing unit 32 repeats the process until a predetermined likelihood or more is obtained within the set time, it is difficult to recognize that no more than a predetermined likelihood is obtained no matter how many times the recognition process is performed. There is a merit that the trial is not repeated many times for the divided image data.

  Further, the determination unit 53 may be configured to output a text in which a likelihood greater than or equal to a predetermined value has not been obtained, as a hidden character.

  A prone character indicates a portion where character recognition could not be performed, such as “◯” and “Δ”. Specifically, when a likelihood greater than or equal to a predetermined value is not obtained with respect to the “thick” portion of the name “Taro Taro”, the determination unit 53 outputs “Taro Yaku”.

  Therefore, the data processing unit 32 can clearly output the portion where the character could be identified and the portion where the character could not be identified. It should be noted that the correct character (in this embodiment, the portion of “◯” is “thick”) may be fed back to the data processing unit 32 for the portion that has been made abbreviated. By the feedback, the data processing unit 32 can output the divided image data that was previously “◯” as the correct text “thick” in the next character recognition.

  The second image recognition unit 51b has a multilayer neural network suitable for each item by machine learning, searches for an item included in the divided image data, and uses the multilayer neural network suitable for the item. Alternatively, the feature points may be extracted from the divided image data, and the text candidates separated into the prime factor text that is a factor smaller than the text may be output.

  For example, information relating to an application date such as “May 1, 2015” can be expected to be input to an item such as “application date”. That is, for items such as “application date”, the numbers “0-9” and the kanji characters “year”, “month”, “day” are input, and no other characters are input. Accordingly, when the recognized item is “application date”, the second image recognition unit 51b outputs the numbers “0-9” and the kanji characters “year”, “month”, “day”. A feature point is extracted from the divided image data using a simple neural network, and a text candidate separated into a prime factor text that is a factor smaller than the text is output.

  In addition, it can be expected that information related to a katakana of a name such as “Tokitataro” is input to an item such as “name_phonetic”. That is, for an item such as “name_reading”, katakana “A-N” or the like is input, and other characters (kanji, numbers, etc.) are not input. Therefore, the second image recognition unit 51b extracts feature points from the divided image data using a neural network that outputs katakana when the item to be recognized is “name_reading”, so that it is more than the text. Output text candidates separated into prime factor texts that are small factors.

  In addition, it is expected that information related to a telephone number such as “03-3581-1111” is input to an item such as “telephone number (TEL)”. That is, for items such as “telephone number (TEL)”, numbers “0-9” and hyphen “-” are input, and other characters (kanji, hiragana, etc.) are not input. Therefore, when the item to be recognized is “telephone number (TEL)”, the second image recognition unit 51b uses a neural network that outputs numbers “0-9” and a hyphen “-”. Feature points are extracted from the image data, and text candidates separated into prime factor texts, which are factors smaller than the text, are output.

  Therefore, the data processing system 1 transmits the divided image data obtained by dividing the image data to be processed by the item unit in the data management device 3 to the data processing device 4, and the data processing device 4 applies the divided image data to the divided image data. Since highly accurate character recognition processing is performed and the processed data is transmitted to the data management device 3, the data processing device 4 retains the original image data generated by the customer terminal device 2 as the provider as it is. Without processing, the data processing device 4 can process the data.

<Second Example of Data Processing Unit 32>
Further, the dividing unit 11 may be configured to extract a characteristic portion of image data. In the case of this configuration, the data processing unit 32 performs image recognition processing on the divided image data to generate image recognition data. In addition, the post-processing data transmission unit 33 transmits the image recognition data generated by the data processing unit 32 to the data management device 3 as post-processing data.

  Here, a second embodiment of the data processing unit 32 will be described. In the following, image data (G in FIG. 9) captured by a security camera or the like is targeted. The dividing unit 11 extracts feature parts (g1, g2, and g3 in FIG. 9) from the image data, and divides the extracted feature parts. The data management device 3 transmits the divided image data to the data processing device 4. In the present embodiment, an example of the characteristic portion is described as a face. However, the present invention is not limited thereto, and may be a whole body or an object other than a person (such as an animal, a car, or a building).

  For example, the data processing unit 32 may be configured to process divided image data with coarse image quality and generate data with clear image quality. In the case of this configuration, the data processing device 4 transmits clear image quality data to the data management device 3 as post-processing data.

  Further, the data processing unit 32 analyzes the divided image data to identify facial features, refers to the gender determination DB that determines gender from the facial features, and determines the gender of the person shown in the divided image data. The age of a person shown in the divided image data is estimated by referring to an age determination DB that estimates or determines the age from facial features. In the case of the configuration, the data processing device 4 transmits sex information, age information, and the like to the data management device 3 as post-processing data.

  Therefore, the data processing system 1 transmits the divided image data, which is a characteristic part of the image data to be processed, to the data processing device 4 in the data management device 3, and the data processing device 4 performs image processing on the divided image data. Since the recognition processing is performed and the processed data is transmitted to the data management device 3, the data processing device 4 does not hold the original image data generated by the customer terminal device 2 that is the provider as it is, The data processing device 4 can process data.

  Next, the flow of operations of the customer terminal device 2, the data management device 3, and the data processing device 4 constituting the data processing system 1 will be described with reference to FIGS. In the following description, the customer terminal device 2 and the data management device 3 are connected and are in a state where file synchronization is possible.

  In step S1, the customer terminal device 2 scans a document (for example, an account transfer request document) with a connected scanner. Note that the scanned data is taken in, for example, a pdf file format.

  In step S2, the customer terminal device 2 stores the scanned data in a memory. At this time, data is transmitted from the customer terminal device 2 to the data management device 3 by the synchronization processing.

  In step S3, the data management device 3 performs pre-reading processing of data transmitted from the customer terminal device 2 by the synchronization processing. By the pre-reading process, the image data is converted into, for example, JPEG format.

  In step S4, the dividing unit 11 divides the image data for each item to generate divided image data.

  In step S5, the link information generation unit 12 links and links the entry number for associating the divided image data divided in the process of step S4 as part of the original image data with the unique item number. Information L is generated.

  In step S6, the data management device 3 encrypts the divided image data and transmits the encrypted divided image data to the data processing device 4, as shown in FIG.

  Specifically, the item number transmission unit 17 transmits the item number to the data processing device 4. The key generation unit 34 of the data processing device 4 generates a unique encryption key for the item number transmitted from the item number transmission unit 17. The key transmission unit 35 transmits the encryption key generated by the key generation unit 34 to the data management device 3.

  In step S <b> 7, the key receiving unit 18 of the data management device 3 receives the encryption key transmitted from the data processing device 4. The encryption unit 19 encrypts the divided image data of the item number transmitted by the item number transmission unit 17 with the encryption key received by the key reception unit 18. For example, the encryption unit 19 encrypts the divided image data a1 (encrypted divided image data A1 in FIG. 11) with the encryption key of the item ID “ABX1.

  Further, the data management device 3 deletes the image data converted by the pre-reading process in step S3.

  In step S8, the divided image data transmission unit 13 of the data management apparatus 3 attaches item numbers corresponding to the encrypted divided image data encrypted by the encryption unit 19 as shown in FIG. Transmit to the processing device 4. The data management device 3 does not transmit the document ID or entry ID of the original image data to the data processing device 4. That is, it can be said that the data management device 4 does not handle information that can identify an individual.

  In step S9, the data processing device 4 processes the divided image data. Specifically, the divided image data receiving unit 31 receives the encrypted divided image data transmitted from the divided image data transmitting unit 13. The encrypted divided image data decrypting unit 36 decrypts the encrypted divided image data received by the divided image data receiving unit 31. The data processing unit 32 performs character recognition processing on the divided image data decrypted by the encrypted divided image data decrypting unit 36 and converts it into text data.

  In step S10, the post-processing data transmission unit 33 encrypts the post-processing data (text data) processed by the data processing unit 32, attaches an item number corresponding to the encrypted post-processing data, and manages data. Transmit to device 3. The data processing device 4 deletes the encrypted data transmitted to the data management device 3.

  In step S11, the data management device 3 receives, decrypts, and shapes the encrypted data as shown in FIG. Specifically, the post-processing data receiving unit 14 receives post-processing data transmitted from the data processing device 4.

  In step S12, the post-encryption data decryption unit 20 transmits an item number corresponding to the post-encryption data to the data processing device 4 and requests generation of a decryption key. The data processing device 4 generates a unique decryption key based on the received item number and transmits it to the data management device 3. The post-encryption data decryption unit 20 decrypts the post-encryption data using the decryption key. The data management device 4 discards the decryption key transmitted to the data management device 3 without saving it.

  The specifying unit 15 specifies the entry number from the item number attached to the post-processing data based on the connection information. The connecting unit 16 associates post-processing data constituting the original image data with the entry number specified by the specifying unit 15.

  Therefore, the data processing system 1 divides the image data to be processed in the data management device 3 connected to the customer terminal device 2, and transmits the divided image data to the data processing device 4 in any order. 4, a predetermined process is performed on the divided image data, and the processed data is transmitted to the data management apparatus 3, so that the original image data generated by the customer terminal apparatus 2 that is the provider is kept as it is. Thus, the data processing device 4 can process the data without the data processing device 4 holding it.

  Note that the steps from Step S10 to Step S12 may be performed on the data processing device 4 side. In the case of this configuration, the data processing device 4 holds the divided image data in the form of cipher text. When the data management device 3 transmits the item ID (for example, the item ID “ABX1...”) To the data processing device 4, the data processing device 4 decrypts the cipher text corresponding to the item ID, and decrypts the decrypted data. The post-text (for example, composite post-text A ″ “patent”) is transmitted from the data processing device 4.

  In the above description, the post-processing data has been described as being generated by the data processing unit 32, but is not limited thereto. For example, as illustrated in FIG. 14, the data processing device 4 may include a storage unit 30, a divided image data reception unit 31, a reception unit 40, an operation unit 41, and a post-processing data transmission unit 33. The accepting unit 40 accepts an input operation by the operation unit 41 based on the divided image data received by the divided image data receiving unit 31. The post-processing data transmission unit 33 transmits post-processing data based on the input operation received by the reception unit 40 to the data management device 3.

  For example, the operator operates the operation unit 41 such as a keyboard while viewing the divided image data displayed on the display. The accepting unit 40 generates text data based on an input operation by the operation unit 41 and stores the generated text data in the storage unit 30 as post-processing data. The post-processing data transmission unit 33 reads out the post-processing data stored in the storage unit 30 and transmits it to the data management device 3.

  According to such a configuration, the data processing apparatus 4 can utilize a service (data input proxy service) performed by the BPO in the process of generating post-processing data.

  In this embodiment, the data processing system 1, the data management device 3, and the data processing device 4 that can mainly process data without holding the original data generated by the provider as it is. However, the present invention is not limited to this, and the present invention is not limited to this. As a method and a program for processing data without holding the original data as it is provided with each component, It may be configured.

  Further, it is realized by recording a program for realizing each function constituting the data management apparatus on a computer-readable recording medium, causing the computer system to read the program recorded on the recording medium, and instructing the program. May be.

  Specifically, the program is for associating the divided image data transmitted from the customer terminal device 2 with each divided image data divided by the dividing step as one step of the original image data. A connection information generation step for connecting the entry numbers to generate connection information, a divided image data transmission step for transmitting the divided image data divided in the division step to the data processing device 4 in random order, and a transmission from the data processing device 4 A post-process data receiving process for receiving post-process data, a specific process for specifying the entry number of the post-process data received by the post-process data receiving process based on the connection information, and an entry specified in the specific process In order to realize, by a computer, an associating process for associating post-processing data constituting original image data from numbers Is a data management program.

  Further, it is realized by recording a program for realizing each function constituting the data processing apparatus on a computer-readable recording medium, causing the computer system to read the program recorded on the recording medium, and instructing it. May be.

  Specifically, the program includes a divided image data receiving step for receiving divided image data transmitted in random order from the data management device 3, and a post-processing for transmitting processed data of the divided image data to the data management device 3. A data processing program for realizing a data transmission step by a computer.

  The “computer system” here includes an OS and hardware such as peripheral devices. The “computer-readable recording medium” refers to a storage device such as a portable medium such as a flexible disk, a magneto-optical disk, a ROM, and a CD-ROM, and a hard disk built in the computer system.

  “Computer-readable recording medium” means a program that dynamically holds a program for a short time, such as a communication line when a program is transmitted via a network such as the Internet or a communication line such as a telephone line. In this case, a volatile memory inside a computer system that serves as a server or a client may also include a program that holds a program for a certain period of time. Further, the program may be for realizing a part of the above-described functions, and may be capable of realizing the above-described functions in combination with a program already recorded in the computer system. .

DESCRIPTION OF SYMBOLS 1 Data processing system, 2 Customer terminal device, 3 Data management device, 4 Data processing device, 10, 30, 50 Storage part, 11 Division | segmentation part, 12 Connection information generation part, 13 Division | segmentation image data transmission part, 14 Data reception after process Unit 15 identification unit 16 connection unit 17 item number transmission unit 18 key reception unit 19 encryption unit 20 post-encryption data decryption unit 31 divided image data reception unit 32 data processing unit 33 post-processing Data transmission unit, 34 key generation unit, 35 key transmission unit, 36 encrypted divided image data decryption unit, 40 reception unit, 41 operation unit, 51 image recognition unit, 51a first image recognition unit, 51b second image recognition unit, 52 natural language processing unit, 53 determination unit, 54 output unit, 55 setting unit, N network.

Claims (13)

In a data processing system in which a data management device and a data processing device are connected via a network,
The data management device includes:
A dividing unit for dividing the image data;
A linked information generating unit that generates linked information by associating each divided image data divided by the dividing unit with an entry number indicating a part of the original image data;
A divided image data transmitting unit that transmits the divided image data divided by the dividing unit to the data processing device in random order;
A post-processing data receiving unit that receives post-processing data transmitted from the data processing device;
Based on the connection information, a specifying unit that specifies an entry number of post-processing data received by the post-processing data receiving unit;
A linking unit that links post-processing data constituting original image data from the entry number specified by the specifying unit;
The data processing device includes:
A divided image data receiving unit for receiving divided image data transmitted in random order from the divided image data transmitting unit;
A post-processing data transmission unit that transmits post-processing data of the divided image data to the data management device;
In the data management device,
The connection information generation unit generates the connection information by associating each divided image data divided by the division unit with an entry number indicating a part of the original image data and a unique item number. ,
An item number transmission unit for transmitting an item number to the data processing device;
A key receiving unit for receiving an encryption key transmitted from the data processing device;
An encryption unit that encrypts the divided image data of the item number transmitted by the item number transmission unit using the encryption key received by the key reception unit;
The divided image data transmission unit sends an item number corresponding to the encrypted divided image data encrypted by the encryption unit to the data processing device,
The specifying unit specifies an entry number from an item number attached to post-processing data received by the post-processing data receiving unit based on the connection information;
The data processing device includes:
A key generation unit that generates a unique encryption key for the item number transmitted from the item number transmission unit;
A key transmission unit that transmits the encryption key generated by the key generation unit to the data management device;
The divided image data receiving unit receives the encrypted divided image data transmitted from the divided image data transmitting unit,
An encrypted divided image data decrypting unit that decrypts the encrypted divided image data received by the divided image data receiving unit;
The post-processing data transmission unit attaches a corresponding item number and transmits post-processing data to the data management device. The data processing device includes:
A key generation unit that generates an encryption key valid for a predetermined period;
A key transmission unit that transmits the encryption key generated by the key generation unit to the data management device;
The data management device includes:
A key receiving unit for receiving an encryption key transmitted from the data processing device;
An encryption unit that encrypts the divided image data with the encryption key received by the key reception unit,
The data processing system according to claim 1, wherein the divided image data transmission unit transmits the divided image data encrypted by the encryption unit to the data processing device in any order. The post-processing data transmission unit encrypts the post-processing data, transmits the encrypted post-processing data to the data management device,
The data processing system according to claim 1, wherein the data management device includes an encrypted data decryption unit that decrypts the encrypted data transmitted from the processed data transmission unit. The data processing apparatus includes a data processing unit that processes the divided image data received by the divided image data receiving unit,
The data processing system according to claim 1, wherein the post-processing data transmission unit transmits post-processing data processed by the data processing unit to the data management device. The data processing apparatus includes a receiving unit that receives an input operation based on the divided image data received by the divided image data receiving unit,
The data processing system according to claim 1, wherein the post-processing data transmission unit transmits post-processing data based on an input operation received by the reception unit to the data management device. The dividing unit divides image data into items,
The data processing unit performs character recognition processing of the divided image data and converts it into text data,
The data processing system according to claim 4, wherein the post-processing data transmission unit transmits the text data converted by the data processing unit to the data management device as the post-processing data. The dividing unit extracts a characteristic portion of image data,
The data processing unit performs image recognition processing of the divided image data to generate image recognition data,
The data processing system according to claim 4, wherein the post-processing data transmission unit transmits the image recognition data generated by the data processing unit to the data management apparatus as the post-processing data. A dividing unit for dividing the image data;
A linked information generating unit that generates linked information by associating each divided image data divided by the dividing unit with an entry number indicating a part of the original image data;
A divided image data transmitting unit that transmits the divided image data divided by the dividing unit to the data processing device in random order;
A post-processing data receiving unit that receives post-processing data transmitted from the data processing device;
Based on the connection information, a specifying unit that specifies an entry number of post-processing data received by the post-processing data receiving unit;
A linking unit linking post-processing data constituting the original image data from the entry number specified by the specifying unit,
The connection information generation unit generates the connection information by associating each divided image data divided by the division unit with an entry number indicating a part of the original image data and a unique item number. ,
An item number transmission unit for transmitting an item number to the data processing device;
A key receiving unit for receiving an encryption key transmitted from the data processing device;
An encryption unit that encrypts the divided image data of the item number transmitted by the item number transmission unit using the encryption key received by the key reception unit;
The divided image data transmission unit sends an item number corresponding to the encrypted divided image data encrypted by the encryption unit to the data processing device,
The data specifying device, wherein the specifying unit specifies an entry number from an item number attached to post-processing data received by the post-processing data receiving unit based on the connection information. A dividing step of dividing the image data;
A linked information generating step for generating linked information by associating each divided image data divided by the dividing step with an entry number indicating a part of the original image data,
An item number transmission step of transmitting the item number to the data processing device;
A key receiving step of receiving an encryption key transmitted from the data processing device;
An encryption step of encrypting the divided image data of the item number transmitted in the item number transmission step by the encryption key received in the key reception step;
A divided image data transmission step of transmitting the divided image data divided in the dividing step to the data processing device in random order;
A post-processing data receiving step of receiving post-processing data transmitted from the data processing device;
Based on the connection information, a specifying step for specifying an entry number of post-processing data received by the post-processing data receiving step;
A connecting step of connecting post-processing data constituting the original image data from the entry number specified in the specifying step,
The linked information generating step generates the linked information by associating each divided image data divided by the dividing step with an entry number indicating a part of the original image data and a unique item number. ,
In the divided image data transmission step, an item number corresponding to the encrypted divided image data encrypted in the encryption step is attached and transmitted to the data processing device,
The specific process, based on the connection information, the data management method of identifying an entry number from the entry number assigned to the received processed data by the processing after the data reception process. A dividing step of dividing the image data;
A linked information generating step for generating linked information by associating each divided image data divided by the dividing step with an entry number indicating a part of the original image data,
An item number transmission step of transmitting the item number to the data processing device;
A key receiving step of receiving an encryption key transmitted from the data processing device;
An encryption step of encrypting the divided image data of the item number transmitted in the item number transmission step by the encryption key received in the key reception step;
A divided image data transmission step of transmitting the divided image data divided in the dividing step to the data processing device in random order;
A post-processing data receiving step of receiving post-processing data transmitted from the data processing device;
Based on the connection information, a specifying step for specifying an entry number of post-processing data received by the post-processing data receiving step;
A data management program for realizing, by a computer, a connecting step of connecting post-processing data constituting original image data from the entry number specified in the specifying step,
The linked information generating step generates the linked information by associating each divided image data divided by the dividing step with an entry number indicating a part of the original image data and a unique item number. ,
In the divided image data transmission step, an item number corresponding to the encrypted divided image data encrypted in the encryption step is attached and transmitted to the data processing device,
The specifying step is a data management program for specifying an entry number from an item number attached to post-processing data received by the post-processing data receiving step based on the connection information. A key generation unit that generates a unique encryption key for the item number transmitted from the item number transmission unit of the data management device;
A key transmission unit that transmits the encryption key generated by the key generation unit to the data management device;
A divided image data receiving unit that receives encrypted divided image data transmitted in random order from the divided image data transmitting unit of the data management device;
An encrypted divided image data decrypting unit for decrypting the encrypted divided image data received by the divided image data receiving unit;
A post-processing data transmission unit that transmits post-processing data of the divided image data decrypted by the encrypted divided image data decryption unit to the data management device;
The post-processing data transmission unit is a data processing device that attaches a corresponding item number and transmits post-processing data to the data management device. A key generation step of generating a unique encryption key for the item number transmitted from the item number transmission unit of the data management device;
A key transmission step of transmitting the encryption key generated by the key generation step to the data management device;
A divided image data receiving step of receiving encrypted divided image data transmitted in random order from the divided image data transmission unit of the data management device;
An encrypted divided image data decrypting step for decrypting the encrypted divided image data received by the divided image data receiving step;
A post-processing data transmission step of transmitting post-processing data of the divided image data decoded by the encrypted divided image data decoding step to the data management device,
The post-processing data transmission step is a data processing method in which post-processing data is transmitted to the data management apparatus with corresponding item numbers. A key generation step of generating a unique encryption key for the item number transmitted from the item number transmission unit of the data management device;
A key transmission step of transmitting the encryption key generated by the key generation step to the data management device;
A divided image data receiving step of receiving encrypted divided image data transmitted in random order from the divided image data transmission unit of the data management device;
An encrypted divided image data decrypting step for decrypting the encrypted divided image data received by the divided image data receiving step;
A data processing program for realizing by a computer a post-processing data transmission step of transmitting post-processing data of the divided image data decrypted by the encrypted divided image data decoding step to the data management device,
The post-processing data transmission step is a data processing program for transmitting post-processing data to the data management apparatus with corresponding item numbers.

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