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1. 发明授权

US08249161B2 Video decoder incorporating reverse variable length decoding 有权
标题翻译：视频解码器结合反向可变长度解码
公开(公告)号：US08249161B2
公开(公告)日：2012-08-21
申请号：US11536555
申请日：2006-09-28
申请人： Mahesh Narain Shukla , Dipti Rani Taur
发明人： Mahesh Narain Shukla , Dipti Rani Taur
IPC分类号： H04N11/02 , H04N7/12
CPC分类号： H04N19/69 , H04N19/426 , H04N19/44 , H04N19/61 , H04N19/895 , H04N19/91
摘要： A video decoder receiving an encoded bit stream includes a header decoder which receives the encoded bit stream, a variable length decoder connected to the header decoder which receives the header decoded data, a quantizer and compensator connected to the variable length decoder, for, during backward decoding, performing inverse quantization, transformation and motion compensation of the variable length decoded data. The inverse quantization, transformation and motion compensation of the header decoded data is done consecutively to provide complete decoded data till a first point in the backward direction such that the first point is either the error point or a point before the end point of the macroblock containing error detected in the forward direction and the output buffer is connected to the quantizer and compensator for storing complete decoded data, thereby eliminating the use of intermediate buffer for storing variable length decoded data during backward decoding and reducing the number of computations.
摘要翻译：接收编码比特流的视频解码器包括接收编码比特流的头解码器，连接到接收头解码数据的头解码器的可变长度解码器，连接到可变长度解码器的量化器和补偿器，用于在后向解码，执行逆量化，可变长度解码数据的变换和运动补偿。标题解码数据的逆量化，变换和运动补偿是连续完成的，以提供完整的解码数据，直到向后方向上的第一点，使得第一点是错误点或包含宏块的结束点之前的点在正向检测到的错误和输出缓冲器连接到量化器和补偿器，用于存储完整的解码数据，从而在反向解码期间消除了用于存储可变长度解码数据的中间缓冲器的使用，并减少了计算次数。

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