Patent ID: 8395679
Filing Date: 2013-03-12
Classification: H04N

Abstract:
1. An apparatus for suppressing color rolling, comprising: a digital signal processor which detects first motion information on a current frame and second motion information on at least one of a plurality of neighboring frames, calculates a gain based on the first and second motion information with respect to only a portion where no motion is detected, and applies the gain to at least one channel of the current frame, wherein the digital signal processing block comprises: a motion detecting unit which detects a motion by comparing an intensity of at least one block of at least one of the neighboring frames and an intensity of corresponding at least one block of the current frame divided into a plurality of blocks; an average value calculating unit which calculates the first motion information which is a first average intensity of the current frame, with respect to at least one block where the motion is not detected in the current frame, and the second motion information which is a second average intensity of at least one of the neighboring frames with respect to corresponding at least one block therein; and a gain calculating unit which calculates the gain by dividing the second average intensity by the first average intensity; and a control unit which applies the gain to the at least one channel of the current frame.