Character recognition method and device based on probability calibration, computer equipment and medium

A text recognition and probability technology, applied in computer parts, character and pattern recognition, calculation, etc., can solve problems such as automatic correction of text recognition errors, and achieve the effect of reducing manual intervention, improving accuracy, and increasing calibration errors

Pending Publication Date: 2021-09-21
PING AN TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in traditional classifiers (such as SVM), automatic correction of text recognition errors has not been implemented.

Method used

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  • Character recognition method and device based on probability calibration, computer equipment and medium
  • Character recognition method and device based on probability calibration, computer equipment and medium
  • Character recognition method and device based on probability calibration, computer equipment and medium

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Embodiment Construction

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0023] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0024] see figure 1 and figure 2 , figure 1 A schematic flow chart of the te...

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Abstract

The invention belongs to the technical field of artificial intelligence, and provides a character recognition method and device based on probability calibration, computer equipment and a computer readable storage medium. The method comprises the following steps: acquiring an initial recognition image, and inputting the initial recognition image into a preset DARTS model; performing character recognition on the initial recognition image to obtain calibration parameters of characters contained in the initial recognition image; inputting the initial recognition image into a preset OCR model, and performing character recognition on the initial recognition image to obtain a character recognition Logits probabilistic vector corresponding to characters contained in the initial recognition image; according to the calibration parameters, performing probability calibration and normalization processing on the character recognition Logits probabilistic vector, and obtaining a character recognition result of characters contained in the initial recognition image. By increasing the calibration of the character recognition probability, the calibration problem of the recognition error rate can be solved, and the accuracy of character prediction in character recognition is improved.

Description

technical field [0001] The present application relates to the technical field of artificial intelligence, in particular to the technical field of image detection, and in particular to a text recognition method, device, computer equipment and computer-readable storage medium based on probability calibration. Background technique [0002] For OCR (Optical Character Recognition in English, Optical Character Recognition), more application scenarios are information extraction of various documents, such as obtaining the name on the document from the provided document. In many scenarios, it can correctly identify the name on the document Names can greatly simplify business processes, improve efficiency, and prevent fraud and eliminate false information. [0003] While the accuracy of OCR characters continues to improve, errors in character recognition persist, so it is critical to identify when and where errors occur and correct any text recognition errors that occur. However, in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/62G06N3/04G06N3/08
CPCG06N3/04G06N3/08G06F18/2415G06F18/214
Inventor 洪振厚王健宗瞿晓阳
Owner PING AN TECH (SHENZHEN) CO LTD
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