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公开(公告)号：EP2311265A1
公开(公告)日：2011-04-20
申请号：EP09794693.3
申请日：2009-07-09
申请人： Tandberg Telecom AS
IPC分类号： H04N7/26
CPC分类号： H04N19/423 , H04N19/436 , H04N19/61 , H04N19/86
摘要： The present invention is related to decoding of block wise coded video pictures in general purpose processors. It relates to implementing a de-blocking filter algorithm or the like in a SIMD environment, especially for processors with 128-bit vector registers. The SIMD concept is a method of improving performance in applications where highly repetitive operations need to be performed. Strictly speaking, SIMD is a technique of performing the same operation on multiple pieces of data simultaneously. The present invention exploits the parallelism of SIMD and the fact that register size fits perfectly to the macroblock size disclosed in the H.264 and MPEG-4 standards.
摘要翻译： 本发明涉及通用处理器中的块式编码视频图像的解码。 它涉及在SIMD环境中实现解块滤波器算法等，特别是对于具有128位矢量寄存器的处理器。 SIMD概念是在需要执行高度重复性操作的应用中提高性能的一种方法。 严格地说，SIMD是一种同时对多个数据执行相同操作的技术。 本发明利用SIMD的并行性和寄存器大小与H.264和MPEG-4标准中公开的宏块大小完全匹配的事实。
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2.发明公开METHOD, APPARATUS AND COMPUTER READABLE MEDIUM FOR CALCULATING RUN AND LEVEL REPRESENTATIONS OF QUANTIZED TRANSFORM COEFFICIENTS REPRESENTING PIXEL VALUES INCLUDED IN A BLOCK OF A VIDEO PICTURE 审中-公开方法，设备和计算机可读介质用于计算的游程长度和LEVEL陈述量化结束变换系数用于表示像素值的视频图像的块
公开(公告)号：EP2384581A1
公开(公告)日：2011-11-09
申请号：EP09836441.7
申请日：2009-12-28
申请人： Tandberg Telecom AS
CPC分类号： H04N19/93 , H04N19/129 , H04N19/132 , H04N19/176 , H04N19/18 , H04N19/60
摘要： A process for calculating run-and-level representations of quantized transform coefficients includes packing each quantized transform coefficients in a value interval (Max, Min) by setting all quantized transform coefficients greater than Max equal to Max, and all quantized transform coefficients less than Min equal to Min; reordering the quantized transform coefficients resulting in an array C of reordered quantized transform coefficients; masking C by generating an array M containing ones in positions corresponding to positions of C having non-zero values, and zeros in positions corresponding to positions of C having zero values; and for each position containing a one in M, generating a run and a level representation by setting the level value equal to an occurring value in a corresponding position C, and setting the run value equal to the number of proceeding positions relative to a current position in M since a previous occurrence of one in M.
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公开(公告)号：EP2380130A1
公开(公告)日：2011-10-26
申请号：EP09833682.9
申请日：2009-12-17
申请人： Tandberg Telecom AS
CPC分类号： H04N19/117 , H04N19/182 , H04N19/59 , H04N19/61 , H04N19/80
摘要： A method for calculating pixel values of interpolated pixel positions located between integer pixel positions in frames of a video picture by a predefined filter operation, the method including: storing the pixel values of the integer pixel position; determining to which of a number of predefined resolution formats the video picture is adapted; defining a fixed width (W) and fixed height value (H) for the frames corresponding to a resolution format determined by the determining; loading a first set of memory addresses for the memory of the video processing apparatus corresponding to a plurality of the pixel values of integer pixel positions; and executing a filter operation on the plurality of the pixel values of integer pixel positions and calculating a plurality of the pixel values of the interpolated pixel positions.
摘要翻译： 一种用于通过预定义的滤波操作来计算位于视频画面的帧中的整数像素位置之间的插值像素位置的像素值的方法，所述方法包括：存储整数像素位置的像素值; 确定所述视频图片适应于多个预定义分辨率格式中的哪一个; 为对应于由所述确定确定的分辨率格式的帧定义固定宽度（W）和固定高度值（H） 将对应于整数像素位置的多个像素值的视频处理装置的存储器的第一组存储器地址加载; 以及对整数像素位置的多个像素值执行滤波操作，并计算内插像素位置的多个像素值。
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