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An image-based Chinese character recognition method

A technology of Chinese characters and recognition methods, applied in character recognition, character and pattern recognition, instruments, etc., can solve the problems of complex image text recognition technology, and achieve the effect of improving the recognition rate, reducing the error rate and improving the accuracy

Inactive Publication Date: 2019-03-22
HENGYANG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] With the rapid development of the mobile Internet, images collected based on mobile terminal cameras are used more and more widely. Among them, image recognition technology recognizes the text in the image and converts it into text, thereby reducing the burden on users to input corresponding text information. , which is convenient for users to store and edit corresponding text information, but 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

Method used

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Embodiment 1

[0027] An image-based Chinese character recognition method, said method comprising:

[0028] Step 1, obtaining the image to be recognized;

[0029] Step 2. Preprocessing the acquired image: correcting the oblique image, and performing threshold processing to obtain an image with single foreground information and background information;

[0030] Step 3: Carry out line-by-line recognition of the text carrier in the image, and then scan the next line of characters sequentially after scanning the characters of the line to obtain the outline of the text carrier;

[0031] Step 4, matching the outline of the carrier with the standard outline in the database, and converting the matched character information into text corresponding to the character information;

[0032] Step 5, recording the text position information;

[0033] Step 6. Carry out panel analysis according to the position of each text to obtain the sentence structure distribution;

[0034] Step 7, correcting the sentenc...

Embodiment 2

[0039] Step 1, obtaining the image to be recognized;

[0040] The image to be recognized can be any photo or scan that requires text recognition, and the image to be recognized can be in JPG, BMP, PNG, JPEG, TIFF, RAW and other formats.

[0041] Step 2. Preprocessing the acquired image: correcting the oblique image, and performing threshold processing to obtain an image with single foreground information and background information;

[0042] The correction of the oblique image includes: firstly performing expansion processing on the image, detecting the edge of the expanded image, performing hough transformation on the edge points to find the angle of the longest line segment, obtaining the straight line angle and rotating the image angle.

[0043] Thresholding processing described in this embodiment: the thresholding processing includes a fixed thresholding method, an adaptive thresholding method, a large law or an iterative method, and the thresholding of an image is conduciv...

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Abstract

The invention relates to the technical field of computer application, in particular to an image-based Chinese character recognition method. The method comprises the following steps of: obtaining an image to be recognized; 2, preprocessing the acquired image; 3, progressively recognizing the character carrier in the image, scanning the next line of characters sequentially after the line of characters is scanned, and obtaining the outline of the character carrier; 4, matching that outline of the carrier with the standard outline in the database, and convert the matched character information intocharacters corresponding to the character information; 5, recording that position information of the character; 6, carrying out panel analysis according to that position of each character to obtain sentence structure distribution; 7, correcting that distribution of the sentence structure to obtain a corrected recognition result to determine the semantics of the image; Step 8, deriving the corrected recognition result. The precision of image character recognition is improved.

Description

technical field [0001] The invention relates to the field of computer application technology, in particular to an image-based Chinese character recognition method. Background technique [0002] With the rapid development of the mobile Internet, images collected based on mobile terminal cameras are more and more widely used. Among them, image recognition technology recognizes the text in the image and converts it into text, thereby reducing the burden on users to input corresponding text information. , which is convenient for users to store and edit corresponding text information, but 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. Contents of the invention [0003] In order to solve the above problems, the present invention provides an image-based Chinese character recognition method. [0004] The specific technical solution is: a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06K9/32G06K9/00G06K9/68
CPCG06V30/414G06V10/22G06V20/62G06V30/245G06V30/1985G06V30/10
Inventor 唐芳贵
Owner HENGYANG NORMAL UNIV
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