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Formula identification method and device, equipment and storage medium

A formula recognition and storage medium technology, applied in the field of data processing, can solve problems such as poor recognition and low recognition accuracy, and achieve the effect of reducing the influence of uncertainty and improving accuracy

Pending Publication Date: 2020-04-28
CHINA CONSTRUCTION BANK
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when using the above-mentioned existing formula recognition method, the recognition accuracy is not high when recognizing some formula images with glued characters
For example, for some formula images of handwritten expressions, there are often glued characters in the formula, and the above-mentioned existing formula recognition methods cannot recognize such handwritten expressions well.

Method used

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  • Formula identification method and device, equipment and storage medium
  • Formula identification method and device, equipment and storage medium
  • Formula identification method and device, equipment and storage medium

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations.

[0051] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. It should also be noted that descriptions such as "first", "second", and "third" are only used to distinguish functions in the present inventio...

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Abstract

The invention provides a formula identification method and device, equipment and a storage medium, and relates to the technical field of data processing. The method includes: obtaining a formula image; segmenting the formula image by adopting a preset segmentation network; obtaining at least one character area contained in the formula image, identifying the at least one character area, obtaining characters in each character area, and generating a formula text in a latex format corresponding to the formula image according to the characters in each character area, so as to identify a formula contained in the formula image, wherein the preset segmentation network can be obtained by training the Unet network by adopting a sample formula image set composed of a sample formula image and a mask corresponding to the sample formula image. By adopting the preset segmentation network, the character area in the formula image can be segmented more accurately, the uncertain influence of adhesion between characters on the segmentation effect is effectively reduced, and the accuracy of formula recognition is further improved.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a formula recognition method, device, equipment and storage medium. Background technique [0002] Formula recognition generally refers to the process of recognizing an image containing a formula and converting the formula contained in the image into a computer-recognizable expression. For example, the mathematical formula image can be recognized, and the mathematical formula contained in the mathematical formula image It is converted into a mathematical expression in latex format, so that the computer can calculate based on the formula, or store the formula, etc. For example, for some text content, titles, etc. that need to be entered into the database for storage and contain formulas, images of the text content, titles, etc. can be obtained by scanning, and then the images are recognized based on the formula recognition algorithm, and the formulas contained in th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06K9/34G06K9/62G06N3/04G06N3/08
CPCG06N3/08G06V20/62G06V30/153G06V10/267G06V30/10G06N3/045G06F18/241
Inventor 易显维
Owner CHINA CONSTRUCTION BANK
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