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1. 发明申请

WO2011095583A3 IMPROVED METHOD AND APPARATUS FOR SUB-PIXEL INTERPOLATION 审中-公开
标题翻译：改进的子像素插值方法和装置
公开(公告)号：WO2011095583A3
公开(公告)日：2011-11-17
申请号：PCT/EP2011051642
申请日：2011-02-04
申请人： ERICSSON TELEFON AB L M , ANDERSSON KENNETH , SJOBERG RICKARD , WU ZHUANGFEI
发明人： ANDERSSON KENNETH , SJOBERG RICKARD , WU ZHUANGFEI
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/176
摘要： There is provided a method and apparatus for decoding an encoded video stream. The method comprises receiving an indication of a motion vector for a current picture, the motion vector referring to a previously decoded picture. The method also comprises applying a mask, the mask defining a subset of sub-pixel positions of the previously decoded picture which may be referenced by the motion vector for the current picture. The method further comprises identifying at least one pixel value for the current picture by referring to the value of at least one pixel in an allowed pixel position of the previously decoded picture.
摘要翻译：提供了一种用于解码编码的视频流的方法和装置。该方法包括接收当前图片的运动矢量的指示，该运动矢量参考先前解码的图片。该方法还包括应用掩码，该掩码定义先前解码图片的子像素位置的子集，该子集可以由当前图片的运动向量参考。该方法还包括通过参考先前解码图片的允许像素位置中的至少一个像素的值来识别当前图片的至少一个像素值。

2. 发明申请

WO2011095583A2 IMPROVED METHOD AND APPARATUS FOR SUB-PIXEL INTERPOLATION 审中-公开
标题翻译：改进的子像素插值方法和装置
公开(公告)号：WO2011095583A2
公开(公告)日：2011-08-11
申请号：PCT/EP2011/051642
申请日：2011-02-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , ANDERSSON, Kenneth , SJOBERG, Rickard , WU, Zhuangfei
发明人： ANDERSSON, Kenneth , SJOBERG, Rickard , WU, Zhuangfei
IPC分类号： H04N7/26 , H04N7/36
CPC分类号： H04N19/523 , H04N19/117 , H04N19/127 , H04N19/159 , H04N19/176
摘要： There is provided a method and apparatus for decoding an encoded video stream. The method comprises receiving an indication of a motion vector for a current picture, the motion vector referring to a previously decoded picture. The method also comprises applying a mask, the mask defining a subset of sub-pixel positions of the previously decoded picture which may be referenced by the motion vector for the current picture. The method further comprises identifying at least one pixel value for the current picture by referring to the value of at least one pixel in an allowed pixel position of the previously decoded picture.
摘要翻译：提供了一种用于对编码的视频流进行解码的方法和装置。该方法包括接收当前图像的运动矢量的指示，该运动矢量参考先前解码的图像。该方法还包括应用掩模，该掩模定义了可由当前图像的运动矢量参考的先前解码的图像的子像素位置的子集。该方法还包括通过参考先前解码的图像的允许的像素位置中的至少一个像素的值来识别当前图像的至少一个像素值。

3. 发明申请

WO2011095259A1 SELECTING PREDICTED MOTION VECTOR CANDIDATES 审中-公开
标题翻译：选择预测运动矢量候选
公开(公告)号：WO2011095259A1
公开(公告)日：2011-08-11
申请号：PCT/EP2010/070679
申请日：2010-12-23
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RUSERT, Thomas , ANDERSSON, Kenneth , WENNERSTEIN, Per , STROM, Jacob , SJOBERG, Rickard
发明人： RUSERT, Thomas , ANDERSSON, Kenneth , WENNERSTEIN, Per , STROM, Jacob , SJOBERG, Rickard
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/137 , H04N19/176 , H04N19/52
摘要： There is provided a method of selecting PMV candidates, wherein each PMV candidate corresponds to a motion vector used for coding of a previous block, said previous block having a distance from a current block. The method comprises identifying allowed distance values of distances between the current block and the previous block. The method further comprises selecting a set of PMV candidates as a subset of the set of previously coded motion vectors that were used for previous blocks having an allowed distance from the current block.
摘要翻译：提供了一种选择PMV候选的方法，其中每个PMV候选对应于用于前一块的编码的运动矢量，所述先前块具有与当前块的距离。该方法包括识别当前块和先前块之间的距离的允许距离值。该方法还包括选择一组PMV候选作为先前编码的运动矢量集合的子集，其用于具有来自当前块的允许距离的先前块。

4. 发明申请

WO2011095260A1 MANAGING PREDICTED MOTION VECTOR CANDIDATES 审中-公开
标题翻译：管理预测运动矢量候选人
公开(公告)号：WO2011095260A1
公开(公告)日：2011-08-11
申请号：PCT/EP2010/070680
申请日：2010-12-23
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , RUSERT, Thomas , ANDERSSON, Kenneth , WENNERSTEIN, Per , STROM, Jacob , SJOBERG, Rickard
发明人： RUSERT, Thomas , ANDERSSON, Kenneth , WENNERSTEIN, Per , STROM, Jacob , SJOBERG, Rickard
IPC分类号： H04N7/26
CPC分类号： H04N19/105 , H04N19/137 , H04N19/176 , H04N19/52
摘要： There is provided a method of managing PMV candidates. The method comprises selecting a set of PMV candidates as a subset of the previously coded motion vectors. The method further comprises assigning a code value to each PMV candidate in the set of PMV candidates. The code values vary in length and are assigned to the PMV candidates in order of expected usage such that the PMV candidate having the highest expected usage has one of the shortest code values.
摘要翻译：提供了一种管理PMV候选人的方法。该方法包括选择一组PMV候选作为先前编码的运动矢量的子集。该方法还包括向PMV候选集合中的每个PMV候选分配码值。代码值的长度不同，按照预期的使用顺序分配给PMV候选，使得具有最高预期使用的PMV候选具有最短代码值之一。

5. 发明申请

WO2010069367A1 ADAPTIVE QUANTIZATION BASED ON BIT RATIO 审中-公开
标题翻译：基于比特率的自适应量化
公开(公告)号：WO2010069367A1
公开(公告)日：2010-06-24
申请号：PCT/EP2008/067718
申请日：2008-12-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SJOBERG, Rickard , BOCK, Alois Martin
发明人： SJOBERG, Rickard , BOCK, Alois Martin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/194 , H04N19/126 , H04N19/14 , H04N19/15 , H04N19/61
摘要： There is provided a method of adapting a Quantization parameter of digitally encoded video, comprising using a look-ahead encoding pass to provide look-ahead bit costs for each macroblock in a picture of interest, calculating an activity metric for each macroblock in the picture of interest, determining at least an accumulated look- ahead bit cost threshold for a low macroblock activity category, wherein the low macroblock activity category comprises macroblocks having an activity metric below a pre-determined level, sorting the macroblocks according to the calculated activity metrics of each macroblock to provide sorted macroblocks, adding sorted macroblocks to the low macroblock activity category in ascending activity order and accumulating bit costs of the added sorted macroblocks up to the determined accumulated look-ahead bit cost threshold, and applying a change in quantization parameter, Qp, to the macroblocks of the picture of interest comprising decreasing the Qp value of the macroblocks in the low macroblock activity category.
摘要翻译：提供了一种适应数字编码视频的量化参数的方法，包括使用先行编码遍以提供感兴趣的图片中的每个宏块的先行位成本，计算图像中每个宏块的活动度量确定低宏块活动类别的至少累积超前位成本阈值，其中所述低宏块活动类别包括具有低于预定电平的活动度量的宏块，根据所计算的每个所述活动度量的活动度量对所述宏块进行排序宏块，以提供排序的宏块，按升序的活动顺序将排序的宏块添加到低宏块活动类别，并将所添加的分类宏块的比特成本累积到所确定的累积预先比特成本阈值，并应用量化参数Qp，涉及到所关注的图像的宏块，包括降低该图像的Qp值低宏块活动类别中的宏块。

6. 发明申请

WO2010069366A1 ADAPTIVE QUANTIZATION BASED ON SPATIAL ACTIVITY HISTOGRAM 审中-公开
标题翻译：基于空间活动组织的自适应量化
公开(公告)号：WO2010069366A1
公开(公告)日：2010-06-24
申请号：PCT/EP2008/067716
申请日：2008-12-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BOCK, Alois, Martin , SJOBERG, Rickard
发明人： BOCK, Alois, Martin , SJOBERG, Rickard
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N7/12 , H04N11/02 , H04N19/126 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/61
摘要： There is provided a method of adapting a Quantization parameter of digitally encoded video, comprising calculating spatial activity values of macroblocks in a picture of interest, creating a histogram of the spatial activity values, determining a change of quantization parameter value for a low activity category ΔQPLA from a skewness parameter of the histogram. There is also provided an apparatus for carrying out the method, and a computer readable product carrying instructions which when executed carry out the method.
摘要翻译：提供了一种适应数字编码视频的量化参数的方法，包括计算感兴趣的图片中的宏块的空间活动值，创建空间活动值的直方图，确定低活动类别的量化参数值的变化？ QPLA从直方图的偏度参数。还提供了一种用于执行该方法的装置，以及携带执行指令的计算机可读产品，执行该方法。

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