Invention Grant
- Patent Title: Exposure metering based on background pixels
- Patent Title (中): 基于背景像素的曝光测光
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Application No.: US14316678Application Date: 2014-06-26
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Publication No.: US09489750B2Publication Date: 2016-11-08
- Inventor: Ruiduo Yang , Shuxue Quan , Ning Bi
- Applicant: QUALCOMM Incorporated
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agency: Knobbe Martens Olson & Bear, LLP
- Main IPC: H04N5/235
- IPC: H04N5/235 ; G06T11/00 ; G06T5/50 ; H04N5/243

Abstract:
The disclosed technology relates to image-capturing methods. In one aspect, a method includes receiving an image frame comprising a plurality of pixels and subtracting foreground pixels from the image frame to obtain background pixels. The method additionally includes determining an exposure condition for a next image frame based on at least a subset of the background pixels. The method further includes adjusting the foreground pixels such that a difference between a background luma value and a foreground luma value of the next image frame is within a predetermined range. Aspects are also directed to apparatuses configured for the methods.
Public/Granted literature
- US20150379740A1 EXPOSURE METERING BASED ON BACKGROUND PIXELS Public/Granted day:2015-12-31
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