Baumer VCXG .I - Defect Pixel Correction Algorithm

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7.5.2 Correction Algorithm
On Baumer cameras the problem of defect pixels is solved as follows:
▪ Possible defect pixels are identied during the production process of the camera.
▪ The coordinates of these pixels are stored in the factory settings of the camera.
▪ Once the sensor readout is completed, correction takes place:
▪ Before any other processing, the values of the neighboring pixels on the left and the
right side of the defect pixels, will be read out. (within the same bayer phase for
color)
▪ Then the average value of these 2 pixels is determined to correct the rst defect
pixel
▪ Finally, the value of the second defect pixel is is corrected by using the previously
corrected pixel and the pixel of the other side of the defect pixel.
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Examples for the correction of defect pixels
defect pixel
corrected pixel (red)
corrected pixel (green)