发明名称 |
VIDEO ENCODING APPARATUS AND METHOD AND VIDEO DECODING APPARATUS AND METHOD |
摘要 |
A video encoding apparatus and method and a video decoding apparatus and method are provided. The video encoding apparatus includes a base layer encoding unit generating a base layer bitstream including a quantization level of video data and a base quantization parameter corresponding to a base bit-depth, an enhancement layer encoding unit generating an enhancement layer bitstream including a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth, and a bitstream combining unit combining the base layer bitstream and the enhancement layer bitstream to generate the scalable bitstream. The video decoding apparatus includes a base layer decoding unit decoding a base layer bitstream including a quantization level of video data and a base quantization parameter corresponding to a base bit-depth in a received bitstream to obtain a base restoration image, an enhancement layer decoding unit decoding an enhancement layer bitstream including a refined quantization parameter for refining the difference between an extended bit-depth and the base bit-depth in the received bitstream, and a bit-depth restoration unit obtaining an extended restoration image corresponding to an extended bit-depth by using the decoded quantization level, the decoded base quantization parameter, and the decoded refined quantization parameter. |
申请公布号 |
EP2057847(A1) |
申请公布日期 |
2009.05.13 |
申请号 |
EP20070793781 |
申请日期 |
2007.08.31 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM, DAE-HEE;KIM, HYUN-MUN;CHO, DAE-SUNG;CHOI, WOONG-IL;JUNG, JAE-WOO |
分类号 |
H04N7/26;H04N7/46;H04N7/50 |
主分类号 |
H04N7/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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