发明申请
US20100232507A1 METHOD AND APPARATUS FOR ENCODING AND DECODING THE COMPENSATED ILLUMINATION CHANGE
审中-公开
基本信息:
- 专利标题： METHOD AND APPARATUS FOR ENCODING AND DECODING THE COMPENSATED ILLUMINATION CHANGE
- 专利标题（中）：编码和解码补偿照明变化的方法和装置
- 申请号：US12293577 申请日：2007-03-22
- 公开(公告)号：US20100232507A1 公开(公告)日：2010-09-16
- 发明人： Suk-Hee Cho , Hyoung-Jin Kwon , Namho Hur , Jin-Woong Kim , Soo-in Lee , Yung-Lyul Lee , Jae-Ho Hur , Dong-Gyu Sim
- 申请人： Suk-Hee Cho , Hyoung-Jin Kwon , Namho Hur , Jin-Woong Kim , Soo-in Lee , Yung-Lyul Lee , Jae-Ho Hur , Dong-Gyu Sim
- 优先权： KR10-2006-0026175 20060322; KR10-2006-0062999 20060705; KR10-2007-0028225 20070322
- 国际申请： PCT/KR2007/001413 WO 20070322
- 主分类号： H04N7/26
- IPC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.
摘要（中）：
提供了一种通过照明变化补偿运动估计对信号进行编码和解码的方法和装置。 用于通过照明改变补偿运动估计对信号进行编码的装置包括：照明变化补偿单元，通过对当前块的每个像素值和由参考块指示的参考块的平均值进行差分计算来执行对照明变化的补偿 当前块的运动矢量和参考块的平均像素值; 剩余信号生成单元，基于进行照明变化补偿的块生成残留信号; 以及照明变化量预测单元，通过反映发生照明变化的相邻块之间的接近度，基于照明变化量预测值来执行差分脉冲编码调制（DPCM）。