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:
Oct. 26, 2021
Filed:
Dec. 30, 2016
Huawei Technologies Co., Ltd., Guangdong, CN;
Yunchao Zhang, Beijing, CN;
Wenmei Gao, Beijing, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for detecting a document edge is provided. The method includes: obtaining multi-color channel data of each pixel in a color image (), where the multi-color channel data includes two-dimensional coordinate values of the pixel and a value of the pixel on each color channel; performing line detection on the multi-color channel data of each pixel in the color image (); and detecting a quadrilateral based on preset condition and some or all of straight lines obtained by performing the line detection (). According to the foregoing method, a success rate of detecting a document edge can be increased.