METHOD AND APPARATUS FOR ENCODING AND DECODING THE COMPENSATED ILLUMINATION CHANGE,申请号US20070293577-传众专利搜索

METHOD AND APPARATUS FOR ENCODING AND DECODING THE COMPENSATED ILLUMINATION CHANGE

申请公布号：US2010232507(A1)

申请号：US20070293577

申请日期：2007.03.22

申请公布日期：2010.09.16

申请人：

CHO SUK-HEE;KWON HYOUNG-JIN;HUR NAMHO;KIM JIN-WOONG;LEE SOO-IN;LEE YUNG-LYUL;HUR JAE-HO;SIM DONG-GYU

发明人：CHO SUK-HEE;KWON HYOUNG-JIN;HUR NAMHO;KIM JIN-WOONG;LEE SOO-IN;LEE YUNG-LYUL;HUR JAE-HO;SIM DONG-GYU

分类号：H04N7/26

主分类号：H04N7/26

摘要：A method of and apparatus for encoding and decoding a signal by illumination change compensated motion estimation are provided. The apparatus for encoding a signal by illumination change compensated motion estimation includes: an illumination change compensation unit performing compensation for an illumination change by performing a differential calculation between each pixel value of a current block and the means pixel value of a reference block indicated by a motion vector of the current block and the mean pixel value of the reference block; a residual signals generation unit generating residual signals based on the blocks in which illumination change compensation is performed; and an illumination changed amount prediction unit performing differential pulse code modulation (DPCM) based on the illumination change amount prediction value by reflecting the closeness between neighboring blocks in which illumination change occurs.