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    • 94. 发明申请
    • EFFECTIVE COLOR MODELING METHOD FOR PREDICTIVE IMAGE COMPRESSION
    • 用于预测图像压缩的有效颜色建模方法
    • WO2010104778A1
    • 2010-09-16
    • PCT/US2010/026501
    • 2010-03-08
    • SMITH MICRO SOFTWARE, INC.SEMENYUK, VladimirVOLKOFF, Serge
    • SEMENYUK, VladimirVOLKOFF, Serge
    • H04N11/02
    • H04N19/91
    • A method for effective color modeling for predictive image encoding. Colors are processed on a binary basis, when each color index is treated as a binary value. Binary digits are processed sequentially with the use of context-based approach. The context is calculated as a unique combination of binary values of already processed digits, the position of the digit currently being processed and an additional identifier from a limited set of identifiers that describe differences between the predicted color index and the averaged color index being reconstructed during bitwise processing. Color mapping, table operations and a special rules for efficient difference identification are proposed as major enhancements of the method.
    • 一种用于预测图像编码的有效颜色建模的方法。 当每个颜色索引被视为二进制值时,颜色将以二进制方式处理。 使用基于上下文的方法可以顺序处理二进制数字。 上下文被计算为已经处理的数字的二进制值的唯一组合,当前正在处理的数字的位置和来自描述预测的颜色索引和平均颜色索引之间的差异的标识符的附加标识符,该标识符正在被重建 按位处理。 提出了颜色映射,表格操作和高效差异识别的特殊规则,作为该方法的主要增强。
    • 95. 发明申请
    • METHOD AND APPARATUS FOR VIDEO PROCESSING USING MACROBLOCK MODE REFINEMENT
    • 使用MACROBLOCK模式改进的视频处理的方法和装置
    • WO2010048544A1
    • 2010-04-29
    • PCT/US2009/061907
    • 2009-10-23
    • TRANSVIDEO, INC.CHATTERJEE, ChanchalEIFRIG, Robert, Owen
    • CHATTERJEE, ChanchalEIFRIG, Robert, Owen
    • H04N11/02
    • H04N19/40H04N19/61H04N19/70
    • Apparatus and methods for processing (e.g., transrating) one or more compressed video bitstreanis including mode refinement analysis. In one embodiment, a method of transrating a digital video picture having a plurality of input macroblocks, each input macroblock having at least first and second attributes (e.g., slice type, encoding mode, and a "skipped" mode) is disclosed. In one variant, the method comprises generating an output macroblock corresponding to each input macroblock, with each of the output macroblocks having the first and second attributes. For each output macroblock having a first value for the first attribute (e.g., slice type), the second attribute (e.g., encoding mode) is decided at least in part by evaluating one or more error criteria, the error criteria being responsive to the second attribute of a corresponding input macroblock.
    • 用于处理(例如,转换)包括模式细化分析的一个或多个压缩视频bitstreanis的装置和方法。 在一个实施例中,公开了一种转换具有多个输入宏块的数字视频图像的方法,每个输入宏块具有至少第一和第二属性(例如,片类型,编码模式和“跳过”模式)。 在一个变型中,该方法包括生成对应于每个输入宏块的输出宏块,其中每个输出宏块具有第一和第二属性。 对于具有第一属性的第一值(例如,片类型)的每个输出宏块,至少部分地通过评估一个或多个错误标准来决定第二属性(例如,编码模式),错误标准响应于第二属性 相应输入宏块的属性。