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Method and device for recognizing image characters

A text recognition and image technology, applied in character and pattern recognition, instruments, computer parts, etc., can solve the problems of no correction measures, recognition errors, and low text recognition accuracy, and achieve the effect of meeting recognition needs and improving accuracy

Active Publication Date: 2014-02-12
BEIJING BAIDU NETCOM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above image text recognition method has a strong text recognition ability, but because it is based on the recognition of a single text, it is prone to recognition errors and there is no effective correction measure, and the text recognition accuracy is low

Method used

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  • Method and device for recognizing image characters
  • Method and device for recognizing image characters
  • Method and device for recognizing image characters

Examples

Experimental program
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Embodiment 1

[0073] figure 1 The method flowchart of the image text recognition that the embodiment of the present invention provides, such as figure 1 As shown, the method may include the following steps:

[0074] Step 101: Obtain the text area in the image to be recognized.

[0075] The server acquires an image containing text information sent by the mobile terminal, and the image may be an original image captured by the mobile terminal. In this step, the server extracts the text area in the image to be recognized. Or, the image may be that after the mobile terminal captures the original image, extracts the text area in the image to be recognized and then sends the text area in the image to be recognized to the server.

[0076] Existing methods can be used to extract the text area, and the text area can be extracted after removing the image background, but not limited to the following methods:

[0077] Method 1. First, perform color run-length coding according to the color Euclidean d...

Embodiment 2

[0155] Figure 5 The structure diagram of the device for image recognition provided by Embodiment 2 of the present invention, such as Figure 5 As shown, the device includes: an area acquisition unit 500 , a text recognition unit 510 , a position recording unit 520 , a layout analysis unit 530 and a semantic analysis unit 540 .

[0156] First, the area acquisition unit 500 acquires the text area in the image to be recognized, wherein the area acquisition unit 500 can receive the image to be identified sent by the mobile terminal, and extract the text area from the image to be identified; or, the receiving mobile terminal extracts the text area from the image to be identified And send it to the textarea.

[0157] The character recognition unit 510 respectively recognizes each character block in the character area, and an existing recognition method may be used, for example, specifically including: binarizing the character area; dividing the binarized character area into each c...

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Abstract

The invention provides a method and device for recognizing image characters. The method includes the steps of S1, obtaining a character area in an image to be recognized, S2, carrying out recognition on various character blocks in the character area respectively, and recording position information of the character blocks, S3, based on the position information of the character blocks, carrying out layout analysis to obtain statement structure distribution, and S4, based on the statement structure distribution, carrying out correction based on semantic analysis on recognition results of the character blocks to obtain the corrected recognition results. According to the method and device, semantic information among the characters is effectively used for correcting the recognition results of the character blocks, the image character recognition accuracy is improved, and the recognition requirements of users are better met.

Description

【Technical field】 [0001] The invention relates to the field of computer application technology, in particular to a method and device for image and character recognition. 【Background technique】 [0002] With the rapid development of the mobile Internet, the image collected by the camera of the mobile terminal is more and more widely used. Among them, the image character recognition technology recognizes the characters in the image and converts them into text characters, thereby reducing the burden on the user to input the corresponding text information, and making it convenient for the user to store and edit the corresponding text information. However, image text recognition technology is a very complicated technical problem, especially in the case of complex image content, the text recognition accuracy often cannot meet the needs of users. [0003] The existing image text recognition method mainly includes the following steps: [0004] 1) Determine the character area in th...

Claims

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Application Information

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IPC IPC(8): G06K9/20
Inventor 韩钧宇丁二锐吴中勤文林福
Owner BEIJING BAIDU NETCOM SCI & TECH CO LTD
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