Information processing apparatus, control method, and storage medium

Patent metadata

Field	Value
Publication number	US-2018232573-A1
Application number	US-201815877062-A
Country	US
Kind code	A1
Filing date	Jan 22, 2018
Priority date	Feb 10, 2017
Publication date	Aug 16, 2018
Grant date	—

Abstract

An information processing apparatus extracts an area by performing an area analysis on an image, acquires a rule that defines a keyword and conditions of a value corresponding to the keyword, determines an order of specifying an area including the keyword and an area including the value corresponding to the keyword based on the acquired rule, firstly specifies the area including the keyword or the area including the value corresponding to the keyword from among the extracted area in accordance with the determined order, performs character recognition processing on the specified area, and secondly specifies the corresponding another area based on the acquired rule and the first specified area.

First claim

What is claimed is:

1 . An information processing apparatus comprising:
a memory for storing a computer program; and a processor for executing the computer program to perform:
extracting an area by performing area analysis processing on an image;
acquiring a rule that defines a keyword and conditions of a value corresponding to the keyword;
determining an order for specifying an area including the keyword and an area including the value corresponding to the keyword based on the acquired rule;
first specifying the area including the keyword or the area including the value corresponding to the keyword from among the extracted area in accordance with the determined order;
character recognition processing on the specified area; and
second specifying the corresponding another area based on the acquired rule and the first specified area.

2 . The information processing apparatus according to claim 1 , wherein the processor executes the computer program to perform, if the rule defines that the value corresponding to the keyword is a character string with a fixed length, it is determined as the order that the area including the value corresponding to the keyword is to be specified before specifying the area including the keyword.

3 . The information processing apparatus according to claim 1 , wherein the processor executes the computer program to perform, if the rule defines that the value corresponding to the keyword is limited to a specific character type, it is determined as the order that the area including the value corresponding to the keyword is to be specified before specifying the area including the keyword.

4 . The information processing apparatus according to claim 3 , wherein, if the rule defines that the value corresponding to the keyword is limited to a specific character type, the character recognition processing is performed limited to the specific character type.

5 . The information processing apparatus according to claim 1 , wherein the processor executes the computer program to further perform estimating a size of the area including the keyword and the area including the value corresponding to the keyword based on the keyword and the conditions of the value corresponding to the keyword, wherein the area including the keyword and/or the area including the value corresponding to the keyword are specified based on the estimated size.

6 . The information processing apparatus according to claim 1 , wherein the processor executes the computer program to perform, if there are a plurality of rules, determining an order of using the plurality of rules based on the keywords included in the rules and the conditions of the values corresponding to the keywords.

7 . The information processing apparatus according to claim 6 , wherein, if there are the plurality of rules, when specifying the area including the keyword and the area including the value corresponding to the keyword among the extracted area using one of the rules, an area previously specified as the area including the keyword or the area including the value corresponding to the keyword using another rule is excluded from the extracted area.

8 . The information processing apparatus according to claim 1 ,
wherein the rule includes information related to an arrangement of the area including the keyword and the area including the value corresponding to the keyword, and wherein the second specified area is specified based on the first specified area and the information related to the arrangement included in the rule.

9 . A non-transitory storage medium on which is stored a computer program for making a computer execute a method for controlling an information processing apparatus, the method comprising:
extracting an area by performing area analysis processing on an image; acquiring a rule that defines a keyword and conditions of a value corresponding to the keyword; determining an order for specifying an area including the keyword and an area including the value corresponding to the keyword based on the acquired rule; first specifying the area including the keyword or the area including the value corresponding to the keyword from among the extracted area in accordance with the determined order; performing character recognition processing on the specified area; and second specifying the corresponding another area based on the acquired rule and the first specified area.

10 . A method for controlling an information processing apparatus, the method comprising:
extracting an area by performing area analysis processing on an image; acquiring a rule that defines a keyword and conditions of a value corresponding to the keyword; determining an order for specifying an area including the keyword and an area including the value corresponding to the keyword based on the acquired rule; first specifying the area including the keyword or the area including the value corresponding to the keyword from among the extracted area in accordance with the determined order; performing character recognition processing on the specified area; and second specifying the corresponding another area based on the acquired rule and the first specified area.

Assignees

• Canon Kk

Inventors

• Yamazaki Taeko

Classifications

• G06V30/412 Primary

  Layout analysis of documents structured with printed lines or input boxes, e.g. business forms or tables · CPC title

• G06V30/414

  Extracting the geometrical structure, e.g. layout tree; Block segmentation, e.g. bounding boxes for graphics or text · CPC title

• G06V30/10

  Character recognition · CPC title

• G06K9/2063

  Physics · mapped topic

• G06K2209/01

  Physics · mapped topic