发明名称 |
KOMPRESSION- UND KODIERUNGSVERFAHREN EINES 3D MASCHENNETZWERKS |
摘要 |
A method for encoding a digital image for producing a bit stream representing the image, the bit stream length depending on the quality of the desired representation, consisting in: a) defining, on the domain of the image to be encoded, a hierarchical meshing comprising a plurality of nested meshes whereof the mesh peaks are the image pixels; b) determining for each mesh of the hierarchical meshing, a brightness variation between the image to be encoded and an interpolated image obtained from the nested meshing peaks whereto pertains the mesh concerned; and c) inserting in the bit stream position, brightness and chrominance values of the peaks of meshes whereof the brightness variation is higher than a threshold variation useful for encoding fixed or animated images with speed reduction. |
申请公布号 |
AT230869(T) |
申请公布日期 |
2003.01.15 |
申请号 |
AT19990970191T |
申请日期 |
1999.09.30 |
申请人 |
FRANCE TELECOM SA;TELEDIFFUSION DE FRANCE, SOCIETE ANONYME |
发明人 |
LAURENT-CHATENET, NATHALIE;LECHAT, PATRICK;SANSON, HENRI |
分类号 |
H04N11/04;G06T9/00;H04N1/41;H04N7/26;H04N7/36;(IPC1-7):G06T9/00 |
主分类号 |
H04N11/04 |
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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