Patent ID: 8189077
Filing Date: 2012-05-29
Classification: H04N

Abstract:
1. A method for reducing a smear effect of a dynamic image, applicable to an image sensor, wherein the image sensor converts a shot image picture into image data through a color filter array (CFA), and the image data has a plurality of pixels and comprises an effective region, an upper optical black region located above the effective region, and a lower optical black region located below the effective region, the method comprising: capturing two continuous image data from the image sensor in sequence to serve as a first frame image and a second frame image; individually calculating a brightness difference value of a plurality of corresponding pixels between an upper optical black region of the second frame image and one of two optical black regions of the first frame image, so as to obtain a plurality of brightness difference values; comparing the brightness difference values with a threshold to obtain information to be compensated; and compensating pixels in an effective region of the second frame image corresponding to the information to be compensated, according to the information to be compensated.