Character identification method and relevant device

A character recognition and character technology, applied in the field of image processing, can solve the problems of dependency stability, high time overhead, and large amount of template matching calculation, and achieve the effect of avoiding overall feature deviation, strong adaptability, and overcoming offset.

Inactive Publication Date: 2012-12-19
GRG BAKING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Different recognition methods have their own advantages and disadvantages: the template matching algorithm is simple and easy to operate, but the characters need to be normalized and the size is the same, there is a strict fixed position for the template, and the template matching is computationally intensive and time-consuming; background The recognition speed of the feature method is faster, but it has high requirements for the position of the positioning point and depends on the stability of the position of the feature point

Method used

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  • Character identification method and relevant device
  • Character identification method and relevant device

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Embodiment Construction

[0068] Embodiments of the present invention provide a character recognition method and a related device for quickly and effectively recognizing characters.

[0069] see figure 1 , an embodiment of the character recognition method in the embodiment of the present invention includes:

[0070] 101. Obtain image data of characters;

[0071] The character recognition device collects image data of characters through a contact image sensor (CIS, Contact Image Sensor), camera or other acquisition devices, and the image data includes pixels and gray value data of pixels.

[0072] 102. Determine background pixels and foreground pixels in the image data;

[0073] The character recognition device determines background pixels and foreground pixels in the image data, the foreground pixels are pixels represented by gestures of characters, and the background pixels are pixels represented by character backgrounds.

[0074] 103. Locate the center of gravity of the foreground pixel point, and...

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Abstract

The embodiment of the invention discloses a character identification method and a relevant device, applied to efficient and rapid identification of characters. According to the embodiment of the invention, the character identification method comprises the steps of: obtaining image data of a character; determining a background pixel point and a foreground pixel point in the image data; positi0oning the center of gravity of the foreground pixel point and dividing character regions by regarding the center of gravity as a cutting central point; determining a border direction of a border pixel point in each character region; respectively counting the border directions of all the border pixel points in each character region to obtain border direction characteristics of each character region; and identifying the character based on the border direction characteristics in each character region.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a character recognition method and a related device. Background technique [0002] Character recognition refers to the process of scanning text data, and then analyzing and processing image files to obtain text and layout information. At present, character recognition technology has gradually entered people's life, study, work and other fields. Such as: serial number recognition of valuable documents, license plate recognition, etc. [0003] Currently, character recognition methods mainly include: template matching method, background feature method, etc. [0004] Different recognition methods have their own advantages and disadvantages: the template matching algorithm is simple and easy to operate, but the characters need to be normalized and the size is the same, there is a strict fixed position for the template, and the template matching is computationally intensive and time-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/20G06K9/32G06K9/54G06V30/148G06V30/10G06V30/182
CPCG06K9/48G06K9/481G06K9/34G06V30/10G06V30/148G06V30/182G06V30/1823
Inventor 向拓闻关玉萍徐朝阳
Owner GRG BAKING EQUIP CO LTD
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