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A character recognition method, device, computer equipment and storage medium

A character recognition and character technology, applied in the field of image processing, can solve problems such as lack of translation invariance and zoom invariance, wrong recognition results, and increased model update costs

Active Publication Date: 2020-10-27
HANGZHOU HUICUI INTELLIGENT TECH CO LTD +3
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing character features do not have good translation invariance and scaling invariance. For example, if there is an offset or size change between the segmented character and the sample character before training, it may cause errors in the recognition results. Using Classification-oriented models need to continuously add new sample characters to ensure the accuracy of character recognition, which increases the cost of updating the model

Method used

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  • A character recognition method, device, computer equipment and storage medium
  • A character recognition method, device, computer equipment and storage medium
  • A character recognition method, device, computer equipment and storage medium

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0043] In one embodiment, such as figure 1 As shown, a character recognition method is provided, comprising the following steps:

[0044] Step S110, acquiring a binarized image of the segmented character image.

[0045] Wherein, the segmented character image is an image of a single character segmented from an image including text, and the binarized image may be an image of black characters on a white background or an image of white characters on a black background. The specific process of obtaining the binarized image of the segmented character image is: performing thres...

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Abstract

The present application relates to a character recognition method, device, computer equipment and storage medium. The method includes: acquiring a binarized image of a segmented character image; acquiring distance features from image boundaries to character boundaries in multiple directions of the binarized image; regularizing the distance features in multiple directions according to a certain Splicing in a clockwise direction to obtain character outline features; and identifying characters in the segmented character image according to the character outline features. Adopting the method can improve the accuracy of character recognition.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a character recognition method, device, computer equipment and storage medium. Background technique [0002] With the development of image processing technology, character recognition technology has appeared, and characters in the image can be obtained by performing character recognition on the acquired image. Existing character recognition methods generally use training and classification methods. Before training and classification, effective character features need to be extracted for classification. Common character features include uniform grid features, grid-based LBP features, and edge features. Class methods rely on the collection of character samples. [0003] However, the existing character features do not have good translation invariance and scaling invariance. For example, if there is an offset or size change between the segmented character and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/34G06K9/38
CPCG06V30/153G06V10/28G06V10/267
Inventor 周才健周柔刚盛锦华杨亮亮陈慧鹏
Owner HANGZHOU HUICUI INTELLIGENT TECH CO LTD