Title:
PRINTED MATHEMATICAL FORMULA RECOGNITION METHOD AND APPARATUS, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/027349
Kind Code:
A1
Abstract:
Disclosed in the present invention are a printed mathematical formula recognition method and apparatus, and a storage medium. The method comprises: acquiring a printed mathematical formula picture, and performing preprocessing; extracting a first feature matrix of the printed mathematical formula picture on the basis of an encoder; extracting context semantic features of the first feature matrix, so as to obtain a second feature matrix; performing relative position encoding on the second feature matrix by using relative position encoding technology, so as to obtain a third feature matrix; and inputting the third feature matrix into a decoder, so as to obtain a Latex-format sequence of a printed mathematical formula, wherein the third feature matrix is formed by sequentially extracting context semantic features and relative position features between elements again on the basis of the first feature matrix, and the extracted features can more accurately reflect the characteristics of the printed mathematical formula, thereby improving the final accuracy of printed mathematical formula recognition.
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Inventors:
LONG JUN (CN)
YANG LIU (CN)
QI QIANQIAN (CN)
LUO YUEYI (CN)
HONG QUAN (CN)
WANG ZIDONG (CN)
YANG LIU (CN)
QI QIANQIAN (CN)
LUO YUEYI (CN)
HONG QUAN (CN)
WANG ZIDONG (CN)
Application Number:
PCT/CN2023/100351
Publication Date:
February 08, 2024
Filing Date:
June 15, 2023
Export Citation:
Assignee:
UNIV CENTRAL SOUTH (CN)
International Classes:
G06V30/10; G06N3/04; G06V10/82; G06V30/148; G06V30/18
Domestic Patent References:
| WO2021208666A1 | 2021-10-21 |
Foreign References:
| CN115063799A | 2022-09-16 | |||
| CN109614944A | 2019-04-12 | |||
| CN111368773A | 2020-07-03 | |||
| CN114255379A | 2022-03-29 | |||
| US20200344194A1 | 2020-10-29 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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