Mathematical formula positioning method and system, readable storage medium and computer equipment

A mathematical formula and positioning method technology, applied in the field of graphic and text recognition, can solve the problems of large computing resources and slow computing speed, and achieve the effects of low algorithm complexity, improved positioning speed, and reduced computing resource consumption

Active Publication Date: 2020-04-17
广州寄锦教育科技有限公司
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  • Application Information

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Problems solved by technology

[0005] In addition, the existing mathematical formula positioning methods generally have the

Method used

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  • Mathematical formula positioning method and system, readable storage medium and computer equipment
  • Mathematical formula positioning method and system, readable storage medium and computer equipment
  • Mathematical formula positioning method and system, readable storage medium and computer equipment

Examples

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[0027] The principles and features of the present invention will be described below with reference to the accompanying drawings. The examples are only used to explain the present invention, but not to limit the scope of the present invention.

[0028] like figure 1 As shown, a mathematical formula positioning method includes the following steps:

[0029] Obtain the minimum enclosing rectangle of each line of text from the document to be recognized;

[0030] Get the minimum bounding rectangle of each character;

[0031] dividing all the character minimum enclosing rectangles into the row minimum enclosing rectangle;

[0032] Perform vertical overlay and merge on the minimum circumscribed rectangle of the character in each row to obtain the minimum circumscribed rectangle of the merged character;

[0033] According to the minimum circumscribed rectangle of the combined character, the interval mode method is adopted to statistically analyze the general area of ​​the Chinese ch...

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Abstract

The invention relates to a mathematical formula positioning method. The method comprises the following steps of obtaining a row minimum bounding rectangle of each row of characters from a to-be-identified document; obtaining a character minimum bounding rectangle of each character; dividing the minimum enclosing rectangle of the character into the minimum enclosing rectangle of the row; verticallycovering and combining the minimum enclosing rectangles of the characters in each row to obtain a minimum enclosing rectangle of the combined characters; according to the minimum enclosing rectangleof the combined character, adopting an interval mode method, and counting and analyzing the general area of the Chinese character; and processing the minimum enclosing rectangle of the combined character according to the general area of the Chinese character to obtain the minimum enclosing rectangle of the mathematical formula. According to the method, the minimum enclosing rectangle of the mathematical formula is obtained by combining the characteristics of the mathematical formula for processing, the algorithm complexity of the positioning method is low, the operation resource consumption isreduced, and the positioning speed is increased. The invention further relates to a mathematical formula positioning system, a readable storage medium and computer equipment.

Description

technical field [0001] The invention belongs to the technical field of image-text recognition, and in particular relates to a mathematical formula positioning method, system, readable storage medium and computer equipment. Background technique [0002] At present, OCR (Optical Character Recognition) technology can recognize text and tables in electronic documents, and the speed and accuracy are satisfactory. However, there are not only texts in electronic documents. In addition to texts, electronic documents also have many parts such as graphics, diagrams, and formulas. The existing OCR recognition technology is basically powerless for the latter part, and in some occasions, these graphics, charts, formulas, etc. may be more meaningful than text. For example, in electronic documents of science and engineering, mathematical formulas are undoubtedly very important. Once many documents lose their formulas, they will be meaningless. [0003] These formulas are generally more c...

Claims

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Application Information

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IPC IPC(8): G06K9/34
CPCG06V10/26
Inventor 崔东林卓秋生
Owner 广州寄锦教育科技有限公司
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