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    • 4. 发明授权
    • Demosaicing graphical content
    • 拆散图形内容
    • US07346225B2
    • 2008-03-18
    • US11541114
    • 2006-09-29
    • Brian Kevin Guenter
    • Brian Kevin Guenter
    • G06K9/40
    • G06T3/4015
    • Demosaicing of graphical content is provided. In an illustrative implementation a demosaicing engine executing one or more demosaicing algorithms is employed to operate on graphical content to provide better quality and higher resolution images. In operation, the demosaicing engine operates in two modes, a training/learning mode, and a run time mode. During training, training-images are analyzed to generate a codebook of mosaic filter table entries, such that each table entry has an associated list of similar training pixel blocks and their associated filters. During run time, a run-time image is broken into pixel blocks. Each pixel block is then compared with the entries of the codebook to find the closest match filter. The list associated with the entry is then processed using a least-squares algorithm to locate the optimal mosaic filter. As a result, higher resolution is achieved without requiring more pixels.
    • 提供了图形内容的去马赛克。 在说明性实现中,采用执行一个或多个去马赛克算法的去马赛克引擎来操作图形内容以提供更好的质量和更高分辨率的图像。 在操作中,去马赛克引擎以两种模式运行:训练/学习模式和运行时模式。 在训练期间,分析训练图像以生成马赛克滤波器表条目的码本,使得每个表条目具有相似的训练像素块及其相关联的滤波器的相关联的列表。 在运行时间内,运行时映像被分解为像素块。 然后将每个像素块与码本的条目进行比较以找到最接近的匹配滤波器。 然后使用最小二乘法算法处理与该条目相关联的列表以定位最佳马赛克滤波器。 结果,在不需要更多像素的情况下实现更高的分辨率。
    • 5. 发明授权
    • Demosaicing graphical content
    • 拆散图形内容
    • US07158685B2
    • 2007-01-02
    • US10185073
    • 2002-06-28
    • Brian Kevin Guenter
    • Brian Kevin Guenter
    • G06K9/40
    • G06T3/4015
    • Demosaicing of graphical content is provided. In an illustrative implementation a demosaicing engine executing one or more demosaicing algorithms is employed to operate on graphical content to provide better quality and higher resolution images. In operation, the demosaicing engine operates in two modes, a training/learning mode, and a run time mode. During training, training-images are analyzed to generate a codebook of mosaic filter table entries, such that each table entry has an associated list of similar training pixel blocks and their associated filters. During run time, a run-time image is broken into pixel blocks. Each pixel block is then compared with the entries of the codebook to find the closest match filter. The list associated with the entry is then processed using a least-squares algorithm to locate the optimal mosaic filter. As a result, higher resolution is achieved without requiring more pixels.
    • 提供了图形内容的去马赛克。 在说明性实现中,采用执行一个或多个去马赛克算法的去马赛克引擎来操作图形内容以提供更好的质量和更高分辨率的图像。 在操作中,去马赛克引擎以两种模式运行:训练/学习模式和运行时模式。 在训练期间,分析训练图像以生成马赛克滤波器表条目的码本,使得每个表条目具有相似的训练像素块及其相关联的滤波器的相关联的列表。 在运行时间内,运行时映像被分解为像素块。 然后将每个像素块与码本的条目进行比较以找到最接近的匹配滤波器。 然后使用最小二乘法算法处理与该条目相关联的列表以定位最佳马赛克滤波器。 结果,在不需要更多像素的情况下实现更高的分辨率。
    • 6. 发明授权
    • Residual vector quantization for texture pattern compression and decompression
    • 用于纹理图案压缩和解压缩的残差矢量量化
    • US06298169B1
    • 2001-10-02
    • US09181228
    • 1998-10-27
    • Brian Kevin Guenter
    • Brian Kevin Guenter
    • G06K946
    • G06T9/008
    • A method and apparatus for compressing and decompressing texture patterns using a predefined two or more stage codebook with stored texture block vectors. The method of compressing includes selecting a texture block in the uncompressed texture pattern and determining a distortion value of the selected texture block as compared to a texture block vector stored in the two or more stage codebook. The distortion determination is repeated for a different texture block stored in the two or more stage codebook, until the determined distortion value is the smallest for all texture block vectors stored in the two or more stage codebook. The indices of the stored texture block in the two or more stage codebook are retrieved and stored. The retrieved indices are stored in an index block within an index map, wherein the index blocks correspond to texture blocks in the texture pattern. The two or more stage codebook is generated from a representative texture pattern. Decompressing a compressed texture pattern is performed by accessing and summing the vector components based on the stored index map and multi-stage codebook.
    • 一种使用具有存储的纹理块向量的预定义的两个或更多个阶段码本对压缩和解压缩纹理图案的方法和装置。 压缩方法包括:与存储在两个或多个阶段码本中的纹理块矢量相比,选择未压缩纹理图案中的纹理块并确定所选择的纹理块的失真值。 针对存储在两个或多个阶段码本中的不同纹理块重复失真确定,直到所确定的失真值对于存储在两个或多个阶段码本中的所有纹理块向量为最小。 检索并存储两个或多个阶段码本中存储的纹理块的索引。 检索到的索引存储在索引图中的索引块中,其中索引块对应于纹理图案中的纹理块。 从代表性纹理图案生成两个或更多个阶段码本。 通过基于所存储的索引图和多级码本访问和求和矢量分量来解压缩压缩纹理图案。