Patent ID: 7010040
Filing Date: 2006-03-07
Classification: H04N

Abstract:
1. An apparatus of transcoding image data in an image display system, the apparatus comprising: a decoding part decoding an input video data stream in order to restore pixel values of said input data stream; an encoding part encoding said decoded input video data stream to generate a output video data stream having a different data bit rate; and an adaptive motion-compensator performing an active global motion compensation on said output video data stream using global motion parameters estimated based on motion and macro-block information of said input video data stream and further performing an active local motion compensation on said output video data stream using said motion information, wherein said adaptive motion-controller estimates said global motion parameters by initially determining an error value of said current image frame by setting previous global motion parameter values as said global motion parameters if said error value is less than a limiting value, and newly estimating said global motion parameters if said error value is greater than or equal to said limiting value.