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:
Apr. 23, 2024
Filed:
Dec. 12, 2021
Zhejiang Dahua Technology Co., Ltd., Zhejiang, CN;
Peng Zhu, Hangzhou, CN;
Xingjian Zheng, Hangzhou, CN;
Guangxiu Yao, Hangzhou, CN;
Wei Fang, Hangzhou, CN;
Yinchang Yang, Hangzhou, CN;
ZHEJIANG DAHUA TECHNOLOGY CO., LTD., Hangzhou, CN;
Abstract
The present disclosure relates to systems and methods for automatic exposure control. The methods may include obtaining a first frame and a second frame of a current scene from a camera, wherein a ratio of a first exposure time of the first frame to a second exposure time of the second frame is a first exposure ratio; obtaining a first average luminance of a brightest region in the second frame; obtaining a second average luminance of a darkest region in the first frame; and determining a dynamic range of the current scene based on the first exposure ratio, the first average luminance, and the second average luminance.