发明授权
US07583846B2 Texture image compressing device and method, texture image decompressing device and method, data structures and storage medium
失效
纹理图像压缩装置和方法,纹理图像解压缩装置和方法,数据结构和存储介质
- 专利标题: Texture image compressing device and method, texture image decompressing device and method, data structures and storage medium
- 专利标题(中): 纹理图像压缩装置和方法,纹理图像解压缩装置和方法,数据结构和存储介质
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申请号: US12078586申请日: 2008-04-02
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公开(公告)号: US07583846B2公开(公告)日: 2009-09-01
- 发明人: Yasunobu Yamauchi , Shingo Yanagawa , Masahiro Sekine , Takeshi Nagai , Hideyuki Ueno , Nakaba Kogure
- 申请人: Yasunobu Yamauchi , Shingo Yanagawa , Masahiro Sekine , Takeshi Nagai , Hideyuki Ueno , Nakaba Kogure
- 申请人地址: JP Tokyo
- 专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人: Kabushiki Kaisha Toshiba
- 当前专利权人地址: JP Tokyo
- 代理机构: Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P.
- 优先权: JPP2003-021423 20030130
- 主分类号: G06K9/36
- IPC分类号: G06K9/36
摘要:
A texture image compressing device includes a separating unit configured to separate intensity maps that include intensity values and light source-independent texture images, those images including color components from a plurality of texture images corresponding to a plurality of different light source directions and a plurality of different viewpoint directions. The device also 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.
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