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. 30, 2010
Filed:
Dec. 26, 2006
Guangyao Zhao, Shenzhen, CN;
Xiaoxia Wei, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Haitao Yang, Xi'an, CN;
Yilin Chang, Xi'an, CN;
Guangyao Zhao, Shenzhen, CN;
Xiaoxia Wei, Shenzhen, CN;
Jing Wang, Shenzhen, CN;
Haitao Yang, Xi'an, CN;
Yilin Chang, Xi'an, CN;
Huawei Technologies Co., Ltd., Shenzhen, Guangdong District, CN;
Abstract
The present invention discloses a method for acquiring automatic exposure control parameters and a method for controlling automatic exposure control parameters and an imaging device. The core idea is to take the brightness weighted average value obtained according to brightness distribution weighted statistics of the image as the exposure control parameter. Then through adjusting the weighted coefficient of pixels in different brightness regions, control the influence of the pixel concentrated brightness regions on the brightness average value. Because the brightness distribution is the basis for determining weighted statistics, the control method of the present invention is not influenced by the scene assumption. Rather it can be universally adapted to a variety of different scenes, and the exposure control effect is not influenced by the position of scenes in the actual bright region/dark region and block distribution.