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:
Jul. 09, 2024
Filed:
Sep. 29, 2021
Beijing Tsingmicro Intelligent Technology Co., Ltd., Beijing, CN;
Kai Zhou, Beijing, CN;
Shouyi Yin, Beijing, CN;
Shibin Tang, Beijing, CN;
Peng Ouyang, Beijing, CN;
Xiudong Li, Beijing, CN;
Bo Wang, Beijing, CN;
BEIJING TSINGMICRO INTELLIGENT TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
An image correction method includes: capturing speckle patterns on two planes at different distances to obtain a first image of speckle projected on a first plane and a second image of speckle projected on a second plane; matching the first image with the second image to obtain sub-pixel matching points; obtaining, based on first physical coordinates of the sub-pixel matching points on the first image and second physical coordinates of the sub-pixel matching points on the second image, a mapping matrix between the first and second physical coordinates; obtaining a direction vector of a center of the speckle projector in a camera reference frame according to the mapping matrix; adjusting coordinate axis directions of the camera reference frame to align a horizontal axis direction with the direction vector, updating an imaging matrix of the camera; and mapping a target scene image through the imaging matrix to obtain a corrected image.