公开(公告)号：US07372990B2

公开(公告)日：2008-05-13

申请号：US10765122

申请日：2004-01-28

申请人： Yasunobu Yamauchi ,  Shingo Yanagawa ,  Masahiro Sekine ,  Takeshi Nagai ,  Hideyuki Uneo ,  Nakaba Kogure

发明人： Yasunobu Yamauchi ,  Shingo Yanagawa ,  Masahiro Sekine ,  Takeshi Nagai ,  Hideyuki Uneo ,  Nakaba Kogure

IPC分类号： G06K9/36

CPC分类号： G06T9/001 ,  G06T15/04 ,  G06T15/205

摘要： A texture image compressing device includes a separating unit configured to separate intensity maps, including intensity values and light source-independent texture images, those images including color components from a plurality of texture images corresponding to different light source directions and different viewpoint directions. The device includes an intensity map compressing unit configured to compress the intensity maps to generate compressed intensity maps and representative intensity maps that are codebooks of the compressed intensity maps, a light source-independent texture image compressing unit configured to compress the light source-independent texture images to generate light source-independent texture compressed images and color component conversion tables that are codebooks of the light source-independent texture compressed images, and a compressed texture generating unit configured to generate compressed textures by combining the compressed intensity maps, the representative intensity maps, the light source-independent texture compressed images and the color component conversion tables.

摘要翻译： 纹理图像压缩装置包括分离单元，其被配置为分离强度图，包括强度值和光源独立纹理图像，包括来自对应于不同光源方向和不同视点方向的多个纹理图像的颜色分量的那些图像。 该装置包括：强度图压缩单元，被配置为压缩强度图以产生压缩强度图和作为压缩强度图的码本的代表性强度图;光源独立纹理图像压缩单元，被配置为压缩与光源无关的纹理 图像以产生与光源无关的纹理压缩图像的码本的光源独立纹理压缩图像和颜色分量转换表;以及压缩纹理生成单元，被配置为通过组合压缩强度图，代表性强度图 ，光源独立纹理压缩图像和颜色分量转换表。