发明公开
EP3251351A1 PREDICTIVE IMAGE ENCODING AND DECODING WITH PIXEL GROUP BASED QUANTIZATION
审中-公开
基于像素群的量化预测图像编码和解码
- 专利标题： PREDICTIVE IMAGE ENCODING AND DECODING WITH PIXEL GROUP BASED QUANTIZATION
- 专利标题（中）： 基于像素群的量化预测图像编码和解码
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申请号： EP16708484.7申请日： 2016-01-25
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公开(公告)号： EP3251351A1公开(公告)日： 2017-12-06
- 发明人: SCHUEUER, Klaas Heinrich , KOWALIK, Uwe Michael , NEDDENS, Arion , KRAETZER, Philipp , SU, Guan-Ming
- 申请人： Dolby International AB , Dolby Laboratories Licensing Corporation
- 申请人地址： Apollo Building, 3E Herikerbergweg 1-35 1101 CN Amsterdam Zuidoost NL
- 专利权人： Dolby International AB,Dolby Laboratories Licensing Corporation
- 当前专利权人： Dolby International AB,Dolby Laboratories Licensing Corporation
- 当前专利权人地址： Apollo Building, 3E Herikerbergweg 1-35 1101 CN Amsterdam Zuidoost NL
- 代理机构： Dolby International AB Patent Group Europe
- 优先权： US201562108142P 20150127
- 国际公布： WO2016123001 20160804
- 主分类号： H04N19/119
- IPC分类号： H04N19/119 ; H04N19/124 ; H04N19/34 ; H04N19/172 ; H04N19/17 ; H04N19/187 ; H04N19/463 ; H04N19/136
摘要：
The present invention relates generally to images. More particularly, an embodiment of the present invention relates to the pixel group segmented quantization and de-quantization of the residual signal in layered coding of high dynamic range images. By assigning the pixels in the residual image to different pixel groups based on the pixel value of the corresponding pixel in the decoded base layer signal, and by applying pixel group quantizing functions to assigned pixels a more efficient coding can be achieved.
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