Signal evaluation method for electronic image sensor comparing individual pixel output signals with output signal mean values for logic pixel units

摘要

The signal evaluation method provides successive evaluation of output signals from logic pixel units (P1,P2,P3) provided by at least 2 vertically and/or horizontally adjacent pixels (06) of the image sensor surface, combined for providing output signal mean values, compared with the output signals of each individual pixel. When all pixel values lie within a given tolerance range of the mean value the latter is fed to the evaluation device, otherwise a pixel value outside the tolerance range with the greatest distance from the mean value is used.