The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 16, 2024

Filed:

Nov. 29, 2019
Applicant:

Academy of Forensic Science, Shanghai, CN;

Inventors:

Xiaohong Chen, Shanghai, CN;

Xu Yang, Shanghai, CN;

Yachen Wang, Shanghai, CN;

Nan Wang, Shanghai, CN;

Qimeng Lu, Shanghai, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06V 40/30 (2022.01); G06T 7/246 (2017.01);
U.S. Cl.
CPC ...
G06V 40/388 (2022.01); G06T 7/246 (2017.01); G06V 40/376 (2022.01); G06V 40/394 (2022.01); G06T 2207/30241 (2013.01);
Abstract

The present invention provides an offline handwriting individual recognition system and method. The method comprises: scanning the suspicious handwriting to obtain a first white light image and a first three-dimensional image, and scanning the sample handwriting to obtain a second white light image and a second three-dimensional image; pre-processing the first white light image and the second white light image to obtain a first pre-processed image and a second pre-processed image; extracting a first skeleton image and a second skeleton image from the first pre-processed image and the second pre-processed image; obtaining a first writing trajectory and a second writing trajectory according to the first skeleton image and the second skeleton image; extracting a first dynamic feature, a first three-dimensional feature, and a second dynamic feature, a second three-dimensional feature; processing to obtain a correlation coefficient, and obtaining an individual recognition result.


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