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.
Patent No.:
Date of Patent:
Mar. 14, 2023
Filed:
Jan. 21, 2021
Method for optical character recognition in document subject to shadows, and device employing method
Mobile Drive Technology Co., Ltd., New Taipei, TW;
Yun-Hsuan Lin, New Taipei, TW;
Yung-Yu Chuang, New Taipei, TW;
Tzu-Kuei Huang, New Taipei, TW;
Ting-Hao Chung, New Taipei, TW;
Nai-Sheng Syu, New Taipei, TW;
Yu-Ching Wang, New Taipei, TW;
Chun-Hsiang Huang, New Taipei, TW;
Mobile Drive Netherlands B.V., Amsterdam, NL;
Abstract
A method for recognition of characters by optical means in an unclear or non-optimal image of an object document, the image carrying shadows or other impediments inputs the document into a shadow prediction model to obtain a shadow mask. A determination is made as to whether the shadow mask of the document affect an optical character recognition (OCR) performance. The method further inputs the document into a shadow removing model for removal of shadows to obtain an intermediate document if the shadow mask are deemed to affect the OCR performance, then OCR can then be performed on the final object document.