Invention Grant
US07825958B2 Method and apparatus for controlling a camera module to compensate for the light level of a white LED
有权
用于控制相机模块以补偿白色LED的光级的方法和装置
- Patent Title: Method and apparatus for controlling a camera module to compensate for the light level of a white LED
- Patent Title (中): 用于控制相机模块以补偿白色LED的光级的方法和装置
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Application No.: US11626883Application Date: 2007-01-25
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Publication No.: US07825958B2Publication Date: 2010-11-02
- Inventor: Marc Drader , Ken Wu , Michael Purdy
- Applicant: Marc Drader , Ken Wu , Michael Purdy
- Applicant Address: CA Waterloo, Ontario
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo, Ontario
- Agency: Borden Ladner Gervais LLP
- Agent Curtis B. Behmann
- Main IPC: H04N9/73
- IPC: H04N9/73

Abstract:
A method and an apparatus enabling use of a light source emitting a light of changing intensity and changing spectrum as a flash with a camera module having a white-balance routine and an exposure routine, wherein an initial value representative of a color spectrum emitted by the light source is transmitted to the camera module, the light source is turned on, and the camera module is signaled to scan a plurality of images of the scene while the light source is turned on, allowing the white-balance and exposure algorithms to be employed with each image scanned to refine the first initial value to refine the degree of compensation employed in correcting a color and a light level in the last one of the images of the plurality of images scanned.
Public/Granted literature
- US20080180544A1 Method and Apparatus for Controlling a Camera Module to Compensate for the Light Level of a White LED Public/Granted day:2008-07-31
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