Digital image processing method and device for cmos camera images
AssigneeForschungszentrum Julich GmbH
InventorHanno Scharr
Life of this patent
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Abstract
The invention relates to a method and to a device used for the digital image processing of CMOS camera images. CMOS cameras suffer from a so-called afterglow effect when moving objects with high contrasts are recorded. This afterglow effect leads to erroneous values in image evaluation. The inventive method and device allows for an improved digital image evaluation of CMOS camera images. The actual photoelectric current can be determined without afterglow effect by subtracting a defined damping constant c multiplied by the output signal g from the variation with time of the output signal value.
Claims9
A method of digital image processing in CMOS camera images, characterized in that the variation in time of the output signal value g is a combination of the term c*g and the source term q and the calculation of the target signal value q comprises the subtraction of the term c*g from the variation in time of the output signal value g of the image data.
Dependencies are inferred from the claim text.