发明公开
EP2015562A1 Processing device for correcting defect pixel values of an image sensor unit, image sensor unit with the processing device and method
审中-公开
用于校正的彩色图像传感器单元的缺陷像素值Farbildsensoreinheit与处理装置和方法处理装置
- 专利标题： Processing device for correcting defect pixel values of an image sensor unit, image sensor unit with the processing device and method
- 专利标题（中）： 用于校正的彩色图像传感器单元的缺陷像素值Farbildsensoreinheit与处理装置和方法处理装置
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申请号： EP07301218.9申请日： 2007-07-10
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公开(公告)号： EP2015562A1公开(公告)日： 2009-01-14
- 发明人: Thébault, Cédric , Weitbruch, Sébastien , Correa, Carlos
- 申请人： THOMSON Licensing S.A.
- 申请人地址： 46, quai A. Le Gallo 92100 Boulogne-Billancourt FR
- 专利权人： THOMSON Licensing S.A.
- 当前专利权人： THOMSON Licensing S.A.
- 当前专利权人地址： 46, quai A. Le Gallo 92100 Boulogne-Billancourt FR
- 代理机构： Lindemann, Robert
- 主分类号： H04N5/217
- IPC分类号： H04N5/217 ; H04N9/04 ; H04N9/09
摘要：
CMOS image sensors are usually suffering from fixed pattern noise and random defect pixels.
A processing device (15) for correcting of at least one defect pixel value of an image sensor unit is proposed, the image sensor unit comprising at least a first and a second pixel array (1,2,3), wherein the image sensor unit is embodied to project the same image onto each pixel array (1,2,3), the processing device (15) comprising at least a first and a second input channel (11,12,13) for receiving pixel values of the first and the second pixel array, respectively, wherein the processing device (15) is operable to exchange the defect pixel value by a corrected pixel value, wherein the corrected pixel value is estimated by evaluating the values of neighbouring pixels of the defect pixel of the same pixel array,
wherein the corrected pixel value is estimated by evaluating values of a corresponding pixel and its neighbouring pixels of the second pixel array at the same location as the defect pixel of the first pixel array in respect to the projected image.
A processing device (15) for correcting of at least one defect pixel value of an image sensor unit is proposed, the image sensor unit comprising at least a first and a second pixel array (1,2,3), wherein the image sensor unit is embodied to project the same image onto each pixel array (1,2,3), the processing device (15) comprising at least a first and a second input channel (11,12,13) for receiving pixel values of the first and the second pixel array, respectively, wherein the processing device (15) is operable to exchange the defect pixel value by a corrected pixel value, wherein the corrected pixel value is estimated by evaluating the values of neighbouring pixels of the defect pixel of the same pixel array,
wherein the corrected pixel value is estimated by evaluating values of a corresponding pixel and its neighbouring pixels of the second pixel array at the same location as the defect pixel of the first pixel array in respect to the projected image.
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