发明名称 |
DEVICE AND METHOD FOR SCALABLY ENCODING AND DECODING AN IMAGE DATA STREAM, A SIGNAL, COMPUTER PROGRAM AND AN ADAPTATION MODULE FOR A CORRESPONDING IMAGE QUALITY |
摘要 |
The invention relates to a method for encoding a sequence of images generating a data stream in the form of a structure of embedded data layers of n successive levels each of which corresponds to the predetermined resolution of said images. Said method comprises an encoding stage consisting in encoding at least one of said layers of an n+ 1 level by prediction on the basis of said level n layer and in encoding each data layer of the level n in the form of a base sub-stream and, optionally, in the form of at least one enhancement sub-stream enabling to obtain at least one version of the enhanced quality of said images. The inventive method also consists in encoding, for at least one data layer of the n level, at least one single sub-stream enabling to reconstruct the version of said images at said level n resolution with a quality higher than said enhanced qualities, wherein said single sub-steam of the level n layer is not used during the prediction encoding of the layers of a level other than the level n. |
申请公布号 |
KR20070102547(A) |
申请公布日期 |
2007.10.18 |
申请号 |
KR20077018529 |
申请日期 |
2005.12.20 |
申请人 |
FRANCE TELECOM |
发明人 |
AMONOU ISABELLE;CAMMAS NATHALIE;PATEUX STEPHANE |
分类号 |
H04N7/24;H04N7/015;H04N7/26;H04N7/50 |
主分类号 |
H04N7/24 |
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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