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Method and apparatus for patch-based texture image preprocessing for efficient texture image compression
Method and apparatus for patch-based texture image preprocessing for efficient texture image compression
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机译:用于基于补丁的纹理图像预处理以进行有效纹理图像压缩的方法和设备
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摘要
A method and an apparatus for pre-processing patch-based texture image to compress the texture image effectively are provided to improve degradation of picture quality of a rendered image that an unintentional color appears on a 3D model due to a quantization error of texture coordinate information of 3D mesh. A pixel area separating unit(310) divides a patch-based texture image into a used pixel region including pixels which are used for texture mapping and a non-used pixel region including pixels which are not used for the texture mapping. A non-used pixel value setting unit(320) searches one or more valid pixels positioned to be adjacent pixels of each of non-used pixels in the non-used pixel region, and sets the value of the non-used pixel with a representative value obtained from the valid pixel value. The valid pixel includes a pixel which has been subjected for searching of an adjacent valid pixel, among the pixels within the used pixel region and the pixels within the non-used pixel region.
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