# US 2021/0240977 A1 · Document processing apparatus and non-transitory computer readable medium storing program

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- Number: US 2021/0240977 A1
- Document ID: US20210240977A1
- Status: Published application
- Kind: A1
- Application number: 16/908,714
- Filed: 2020-06-22
- Published: 2021-08-05
- Earliest claimed: 2020-02-03
- Assignees: Fuji Xerox Co., Ltd.
- Applicants: Fuji Xerox Co., Ltd.
- Inventors: Kiyoshi TERAGUCHI
- Web page: https://patentgrep.com/patent/US20210240977A1

## CPC

- G06V 30/414: Extracting the geometrical structure, e.g. layout tree; Block segmentation, e.g. bounding boxes for graphics or text
- G06F 16/93: Document management systems
- G06V 30/416: Extracting the logical structure, e.g. chapters, sections or page numbers; Identifying elements of the document, e.g. authors
- G06V 30/418: Document matching, e.g. of document images
- G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A document processing apparatus includes a processor configured to extract an image area, in which an image is disposed, from a plurality of documents to be processed, perform an image recognition process on the image area, compare information on the image of the image area for each document, the information being obtained by performing the image recognition process, and decide a difference for the documents based on a result of comparison of the information on the image and a decision rule for the documents.

## Claims

### Claim 1

A document processing apparatus, comprising:
a processor configured to
extract an image area, in which an image is disposed, from a plurality of documents to be processed,
perform an image recognition process on the image area,
compare information on the image of the image area for each document, the information being obtained by performing the image recognition process, and
decide a difference for the documents based on a result of comparison of the information on the image and a decision rule for the documents.

### Claim 2 (depends on 1)

The document processing apparatus according to claim 1,
wherein the process is configured to
extract an object drawn in the image area through the image recognition process, and
perform the comparison for each object extracted from the image area for each document.

### Claim 3 (depends on 2)

The document processing apparatus according to claim 2,
wherein the processor is configured to decide a difference between types of the objects corresponding to each other drawn in the image areas corresponding to each other in the plurality of documents as the difference between the documents.

### Claim 4 (depends on 3)

The document processing apparatus according to claim 3,
wherein the processor is configured not to apply a difference between positions of the objects corresponding to each other in the image areas corresponding to each other in the plurality of documents to decision of the difference between the documents.

### Claim 5 (depends on 3)

The document processing apparatus according to claim 3,
wherein the processor is configured not to apply a difference between sizes of the objects corresponding to each other in the image areas corresponding to each other in the plurality of documents to decision of the difference between the documents.

### Claim 6 (depends on 1)

The document processing apparatus according to claim 1,
wherein the processor is configured to output information on a difference between the images in the plurality of documents decided to have no difference based on the images of the image areas.

### Claim 7 (depends on 6)

The document processing apparatus according to claim 6,
wherein the processor is configured to add, to a screen displaying an image of an image area of one of the plurality of documents decided to have no difference based on the images of the image areas, a display indicating a difference from an image of a corresponding image area in another document among the plurality of documents.

### Claim 8 (depends on 1)

The document processing apparatus according to claim 1,
wherein the processor is configured to decide the difference for the documents by applying the decision rule associated with types of the documents according to the types of the documents to be processed.

### Claim 9 (depends on 8)

The document processing apparatus according to claim 8,
wherein the processor is configured to
display a user interface screen for setting the decision rule on a display device, and
receive a setting operation performed by a user and generates the decision rule associated with the types of the documents.

### Claim 10

A non-transitory computer readable medium storing a program causing a computer to execute a process, the process comprising:
extracting image an area, in which an image is disposed, from a plurality of documents to be processed;
performing an image recognition process on the image area;
comparing information on the image of the image area for each document, the information being obtained through the image recognition process; and
deciding a difference for the documents based on a result of comparison of the information on the image and a decision rule for the documents.