Character recognition method and device for image, electronic equipment and readable storage medium

A text recognition and image technology, applied in character recognition, character and pattern recognition, instruments, etc., can solve the problems that affect the recognition process, complex photo text information, inability to adapt to the needs of text spanning the entire page, etc., to improve the accuracy rate and recall, the effect of avoiding recognition errors

Pending Publication Date: 2020-07-31
TENCENT TECH (SHENZHEN) CO LTD
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AI Technical Summary

Problems solved by technology

[0003] However, in common business scenarios, the text information of photos is generally more complex, such as shadows, occlusions, wrinkles, distortions, multi-directional, multi-row dense, etc.
The ideal recognition effect cannot be achieved by using the image detection method in the prior art
For example, traditional object detection algorithms cannot adapt to the needs

Method used

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  • Character recognition method and device for image, electronic equipment and readable storage medium
  • Character recognition method and device for image, electronic equipment and readable storage medium
  • Character recognition method and device for image, electronic equipment and readable storage medium

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[0078] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present application, and cannot be construed as limiting the present application.

[0079] In order to make the purpose and advantages of the present application clearer, the implementation of the present application will be introduced in combination with two existing technologies.

[0080] In a prior art, the traditional OCR method can be used to recognize characters in an image. However, the inventor of this application has discovered through research that this technical solution has the following shortcomings:

[0081] Disadvantage 1-1: Traditional OCR is based on black and white optical change...

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Abstract

The invention provides a character recognition method and device for an image, electronic equipment and a readable storage medium, wherein the method comprises the steps: carrying out multi-scale detection of a to-be-processed image, to obtain a pixel-level thermodynamic diagram; carrying out instance segmentation based on the pixel-level thermodynamic diagram, and extracting textbox information corresponding to the to-be-processed image; according to each piece of textbox information, determining a textbox image corresponding to each piece of textbox information in the to-be-processed image;recognizing each textbox image, to obtain corresponding character recognition results. According to the invention, prediction and instance segmentation based on a pixel level are adopted; text of various angles and various curved shapes can be segmented in the to-be-processed image, interference of factors such as noise, wrinkles and non-uniform light in a complex scene is effectively resisted, then the whole text is recognized, recognition errors possibly caused by single-character segmentation are avoided, and the character recognition accuracy and recall rate of the image are remarkably improved.

Description

technical field [0001] The present application relates to the technical field of OCR (Optical Character Recognition, optical character recognition), specifically, the present application relates to an image character recognition method, device, electronic equipment and readable storage medium. Background technique [0002] OCR refers to the technology of identifying text information in an image. Its essence is to detect images captured by optical equipment and recognize text, extending vision and literacy capabilities to machines. OCR technology has been widely used in medical, insurance, finance, logistics, traditional manufacturing and other fields. For example, in an appointment scenario of the medical and health business, it is necessary to recognize the text in the clinical medical record photos taken and uploaded by the user with a mobile phone to achieve accurate appointments. The OCR technology can save considerable recognition and discrimination time, save a lot o...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06K9/34
CPCG06V30/40G06V30/414G06V10/267G06V30/10
Inventor 杨帆高文龙欧贫扶
Owner TENCENT TECH (SHENZHEN) CO LTD
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