Invention Application
US20050024502A1 Method of processing the black level of a pixel matrix of an image sensor, and corresponding sensor
有权
处理图像传感器的像素矩阵的黑色电平的方法以及相应的传感器
- Patent Title: Method of processing the black level of a pixel matrix of an image sensor, and corresponding sensor
- Patent Title (中): 处理图像传感器的像素矩阵的黑色电平的方法以及相应的传感器
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Application No.: US10870336Application Date: 2004-06-17
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Publication No.: US20050024502A1Publication Date: 2005-02-03
- Inventor: Laurent Simony
- Applicant: Laurent Simony
- Priority: FR0307558 20030623
- Main IPC: H04N5/335
- IPC: H04N5/335 ; H04N5/361 ; H04N5/228
Abstract:
For each current image output from a pixel matrix, the digital words relative to at least one masked line of the matrix are processed to generate a current correction digital code. From this code, a black level compensation signal is generated and applied as an offset control on pixel signal amplification. If the current correct digital code does not differ from the code calculated for a previous image output by a predetermined amount, then the code for the previous image is instead used to generate the black level compensation signal.
Public/Granted literature
- US07391449B2 Method of processing the black level of a pixel matrix of an image sensor, and corresponding sensor Public/Granted day:2008-06-24
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