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1. 发明申请

WO2010060463A1 METHOD AND APPARATUS FOR STATISTICAL MULTIPLEXING 审中-公开
标题翻译：用于统计多路复用的方法和装置
公开(公告)号：WO2010060463A1
公开(公告)日：2010-06-03
申请号：PCT/EP2008/066169
申请日：2008-11-25
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , JONES, Anthony Richard , BOCK, Alois Martin
发明人： JONES, Anthony Richard , BOCK, Alois Martin
IPC分类号： H04N7/58
CPC分类号： H04N21/4347 , H04N21/2365 , H04N21/23655 , H04N21/23805 , H04N21/2385
摘要： There is provided a method of statistically multiplexing a plurality of input video data streams into at least one output data stream having a pre-determined capacity, comprising providing a plurality of bit rate estimates at different quality levels for each input video data stream using a look-ahead encoder, summing together the bit rate estimates of the same quality level for all input video data streams, determining the picture quality of each input video data stream at which the summed bit rate estimates is equal to or less than the output data stream pre-determined capacity. There is also provided an apparatus and system for carrying out the method, and a computer readable product carrying instructions which when executed carry out the method.
摘要翻译：提供了一种将多个输入视频数据流统计复用为具有预定容量的至少一个输出数据流的方法，包括使用外观为每个输入视频数据流提供不同质量级别的多个比特率估计前置编码器，将所有输入视频数据流的相同质量等级的比特率估计相加在一起，确定总和比特率估计等于或小于输出数据流pre的每个输入视频数据流的图像质量确定容量。还提供了一种用于执行该方法的装置和系统，以及携带指令的计算机可读产品，其在执行时执行该方法。

2. 发明申请

WO2010017845A1 METHOD AND APPARATUS FOR ESTIMATING THE QUANTISATION PARAMETER USED IN VIDEO SEQUENCES 审中-公开
标题翻译：用于估计视频序列中使用的量化参数的方法和装置
公开(公告)号：WO2010017845A1
公开(公告)日：2010-02-18
申请号：PCT/EP2008/060777
申请日：2008-08-15
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , BOCK, Alois Martin
发明人： BOCK, Alois Martin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/40 , H04N19/117 , H04N19/124 , H04N19/14 , H04N19/159 , H04N19/18 , H04N19/61 , H04N19/86
摘要： There is provided a method of estimating a Quantisation Parameter value used in an upstream video encoder, comprising performing a plurality of at least one one dimensional discrete cosine transform functions on at least one sub-region of a video image wherein the one dimensional discrete cosine transform functions are block aligned with the two dimensional discrete cosine transforms of the video coding standard in use in the upstream encoder, providing a histogram of the output values of the plurality of at least one one dimensional discrete cosine transform functions, deriving a maximum of the histogram, converting the derived maximum of the histogram into an estimated quantisation parameter value using a look-up table. There is also provided an apparatus for carrying out the method, comprising at least one chain of hardware having a previously encoded and decoded video signal as input, comprising a one dimensional discrete transform circuit, a histogram circuit adapted to provide a maximum value from the one dimensional discrete transform circuit, and a look up table adapted to provide an estimated Quantisation Parameter value dependent on the maximum value output from the histogram circuit, wherein the chain of hardware comprises the hardware in series.
摘要翻译：提供了一种估计在上游视频编码器中使用的量化参数值的方法，包括在视频图像的至少一个子区域上执行多个至少一个一维离散余弦变换函数，其中所述一维离散余弦变换功能与在上游编码器中使用的视频编码标准的二维离散余弦变换块对齐，提供多个至少一维离散余弦变换函数的输出值的直方图，导出直方图的最大值，使用查找表将直方图的导出最大值转换为估计量化参数值。还提供了一种用于执行该方法的装置，包括至少一个硬件链，其具有预先编码和解码的视频信号作为输入，包括一维离散变换电路，直方图电路，适于从该一个离散变换电路提供最大值以及查找表，其适于提供取决于来自直方图电路的最大值输出的估计量化参数值，其中硬链包括串联的硬件。

3. 发明申请

WO2012013226A1 IMPROVED BITRATE DISTRIBUTION 审中-公开
标题翻译：改进的双边分配
公开(公告)号：WO2012013226A1
公开(公告)日：2012-02-02
申请号：PCT/EP2010/060949
申请日：2010-07-28
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , CHEN, Li , BOCK, Alois Martin , HORTON, David
发明人： CHEN, Li , BOCK, Alois Martin , HORTON, David
IPC分类号： H04N7/26 , H04N7/24
CPC分类号： H04N19/00169 , H04N19/115 , H04N19/124 , H04N19/14 , H04N19/146 , H04N19/149 , H04N19/15 , H04N21/23406 , H04N21/23655
摘要： There is provided a method of processing video information, the method comprising encoding (430) received video information, the encoded video information having an encoded video bitrate (330), wherein the encoded video bitrate is variable in response to the complexity of the received video information. The method further comprises buffering (440) the encoded video information in a buffer (145), wherein the size of the buffer (145) is controlled in response to the complexity of the received video information.
摘要翻译：提供了一种处理视频信息的方法，所述方法包括编码（430）接收的视频信息，所述编码视频信息具有编码视频比特率（330），其中所述编码视频比特率响应于所接收视频的复杂度而变化信息。该方法还包括在缓冲器（145）中缓冲（440）编码的视频信息，其中响应于所接收的视频信息的复杂度来控制缓冲器的大小（145）。

4. 发明申请

WO2009141011A1 CONTENT ADAPTIVE VIDEO ENCODER AND CODING METHOD 审中-公开
标题翻译：内容自适应视频编码器和编码方法
公开(公告)号：WO2009141011A1
公开(公告)日：2009-11-26
申请号：PCT/EP2008/056335
申请日：2008-05-22
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , AMMU, Satya Ghosh , BOCK, Alois Martin , SPICER, Ryan
发明人： AMMU, Satya Ghosh , BOCK, Alois Martin , SPICER, Ryan
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/006 , H04N19/114 , H04N19/137 , H04N19/142 , H04N19/172 , H04N19/177 , H04N19/53 , H04N19/61 , H04N19/87
摘要： A method of pre-processing a sequence of video picture data comprising I pictures, P pictures and B pictures, where the pictures are arranged as a plurality of Group Of Pictures (GOP) and each of the Group Of Pictures has a first picture and a plurality of Sub Group of Pictures (Sub-GOP). The method uses an analysis of the sequence of video picture data to determine a position of a scene change relative to a position of a start of a new GOP within the sequence of video picture data and then moves the start of the new GOP to coincide with the scene change by extending or decreasing a current GOP length according to whether the scene change and the start of a new GOP are within a predetermined number of pictures of each other. An apparatus for carrying out the method is also provided.
摘要翻译：一种预处理包括I图像，P图像和B图像的视频图像数据序列的方法，其中图像被排列为多个图像组（GOP），并且图像组中的每一个具有第一图像和多个子图像组（Sub-GOP）。该方法使用视频图像数据序列的分析来确定相对于视频图像数据序列内的新GOP的开始位置的场景变化的位置，然后移动新GOP的开始以与通过根据场景变化和新GOP的开始是否在预定数量的照片内延伸或减小当前GOP长度来进行场景变化。还提供了一种用于执行该方法的装置。

5. 发明申请

WO2009068553A1 MARKING OF IMAGES 审中-公开
标题翻译：图像标记
公开(公告)号：WO2009068553A1
公开(公告)日：2009-06-04
申请号：PCT/EP2008/066217
申请日：2008-11-26
申请人： TANDBERG TELEVISION ASA , WU, Ping , BOCK, Alois Martin , COMPTON, Matthew
发明人： WU, Ping , BOCK, Alois Martin , COMPTON, Matthew
IPC分类号： H04N7/26
CPC分类号： H04N19/14 , H04N19/176 , H04N19/186 , H04N19/192 , H04N19/46 , H04N19/85
摘要： A method of pre-processing video image data is provided that comprises analysing the image data at macroblock level to determine an activity level for each macroblock, marking each macroblock with a pre-determined type according to the determined activity level of each macroblock, and re-marking the type of certain ones of the macroblocks dependent upon the marked activity level of neighbouring macroblocks. An apparatus for carrying out the method is also provided.
摘要翻译：提供一种预处理视频图像数据的方法，包括：以宏块级分析图像数据，以确定每个宏块的活动级别，根据所确定的每个宏块的活动级别，以预定类型标记每个宏块; 标记取决于相邻宏块的标记活动级别的某些宏块的类型。还提供了一种用于执行该方法的装置。

6. 发明申请

WO2008104566A2 DETERMINATION OF A TYPE OF PICTURE ENCODING OF A DECOMPRESSED VIDEO SIGNAL 审中-公开
标题翻译：一种减压视频信号的一种图像编码的确定
公开(公告)号：WO2008104566A2
公开(公告)日：2008-09-04
申请号：PCT/EP2008/052374
申请日：2008-02-27
申请人： TANDBERG TELEVISION ASA , BOCK, Alois Martin
发明人： BOCK, Alois Martin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N7/50 , H04N5/93 , H04N5/932 , H04N5/935 , H04N19/103 , H04N19/112 , H04N19/16 , H04N19/40 , H04N19/61 , H04N19/80
摘要： A method and apparatus for determining a type of picture encoding of a decompressed video signal by detecting periodic changes of high frequency content of individual fields of the video signal.The determination may be used in particular to align picture types in successive video compression systems in a video compression concatenation chain.
摘要翻译：通过检测视频信号的各个场的高频内容的周期性变化来确定解压缩视频信号的图像编码类型的方法和装置。该确定可以特别用于对准图片在视频压缩级联链中连续的视频压缩系统中输入类型。

7. 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。

8. 发明申请

WO2009155979A1 DETECTING REPETITION IN DIGITAL VIDEO 审中-公开
标题翻译：检测数字视频中的重复
公开(公告)号：WO2009155979A1
公开(公告)日：2009-12-30
申请号：PCT/EP2008/058146
申请日：2008-06-26
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , BOCK, Alois Martin , AMMU, Satyaghosh
发明人： BOCK, Alois Martin , AMMU, Satyaghosh
IPC分类号： H04N7/26 , H04N5/14
CPC分类号： H04N19/85 , G06T7/207 , H04N7/0115 , H04N19/132 , H04N19/137 , H04N19/172 , H04N19/53
摘要： There is provided a method of detecting repeated pictures in a sequence of video picture data, each picture of said video picture data comprising a plurality of macroblocks, the method comprising performing hierarchical motion estimation on the video picture data to provide best motion vectors for each macroblock, best motion vector sum of absolute difference values for each macro block and zero motion vector sum of absolute difference values for each macroblock, wherein the hierarchical motion estimation includes a plurality of levels, and said best motion vectors, best motion vector sum of absolute difference values and zero motion vector sum of absolute difference values for each macroblock are provided for at least a top level, providing a noise threshold value based upon the zero motion vector sum of absolute difference values from the top level of the hierarchical motion estimation, accumulating the best motion vector sum of absolute difference values for macroblocks having best motion vector sum of absolute difference values greater than the noise threshold value to provide a distortion value for the picture, and setting a repeat flag dependent upon the distortion value. An apparatus adapted to carry out the method, and a computer readable medium carrying instructions which, when executed by a computer, cause the computer to carry out the method are also provided.
摘要翻译：提供了一种在视频图像数据序列中检测重复图像的方法，所述视频图像数据的每个图像包括多个宏块，所述方法包括对视频图像数据执行分层运动估计，以为每个宏块提供最佳运动矢量，每个宏块的绝对差值的绝对差值的最佳运动矢量和和每个宏块的绝对差值的零运动矢量和，其中分层运动估计包括多个级，并且所述最佳运动矢量，绝对差的最佳运动矢量和为至少顶级提供每个宏块的绝对差值的值和零运动矢量和，基于来自分级运动估计的顶级的绝对差值的零运动矢量和提供噪声阈值，累积具有最佳的宏块的绝对差值的最佳运动矢量和绝对差值的运动矢量和大于噪声阈值以提供图像的失真值，以及根据失真值设置重复标志。一种适于执行该方法的装置，以及一种携带指令的计算机可读介质，当由计算机执行时，该计算机可读介质也使计算机执行该方法。

9. 发明申请

WO2009016159A1 SCENE CUT DETECTION FOR VIDEO STREAM COMPRESSION 审中-公开
标题翻译：用于视频流压缩的场景切割检测
公开(公告)号：WO2009016159A1
公开(公告)日：2009-02-05
申请号：PCT/EP2008/059891
申请日：2008-07-28
申请人： Tandberg Television ASA , BOCK, Alois Martin , SPICER, Ryan , WANG, Zhicheng Lancelot
发明人： BOCK, Alois Martin , SPICER, Ryan , WANG, Zhicheng Lancelot
IPC分类号： H04N7/26
CPC分类号： H04N5/147 , H04N19/107 , H04N19/114 , H04N19/124 , H04N19/142 , H04N19/179 , H04N19/87
摘要： A method and apparatus for detecting (51) in a video stream a scene cut (11, 12) between a current field of the video stream and an immediately preceding field includes determining (61) differences for a first plurality of image parameters between values of the image parameters for a current field and for one or more immediately preceding fields. A flag value is set (62) for each parameter indicating whether a possible scene break exists between the current field and the immediately preceding field dependent on the respective differences. The flag values for each parameter are combined (63) to form a combined parameter and a scene break trigger signal generated (64) indicating a scene break between the current field and the immediately preceding field if the combined parameter exceeds a predetermined trigger threshold. A change of criticality is determined (52) at a forthcoming scene cut. A quantisation parameter is adjusted (53) dependent on the criticality change to avoid overflowing a buffer on encoding of a field following the scene cut as an intra-coded field. A field following the scene cut is encoded (54) as an intra-coded field having a quantisation parameter dependent on the criticality change; such that encoding of forward or backward coded fields prior to or following the scene change is based only on fields preceding or following the scene change, respectively.
摘要翻译：一种用于在视频流中检测（51）在视频流的当前场和紧邻的前一场之间的场景切割（11,12）的方法和装置包括：确定（61）第一多个图像参数在用于当前字段和一个或多个紧邻的字段的图像参数。对于每个参数设置标志值（62），该参数指示当前字段和紧接在前一个字段之间是否存在可能的场景中断，这取决于各自的差异。如果组合参数超过预定的触发阈值，则组合每个参数的标志值（63）以形成组合参数和生成的场景中断触发信号（64），指示当前字段与紧接在前的字段之间的场景中断。在即将到来的场景切割中确定关键性的变化（52）。调整量化参数（53），取决于临界变化，以避免在作为帧内编码场的场景切割后的场编码时溢出缓冲区。场景切割后的场被编码（54）作为具有取决于临界变化的量化参数的帧内编码场; 使得在场景改变之前或之后的前向或后向编码场的编码分别仅基于场景改变之前或之后的场。

10. 发明申请

WO2010118780A1 METHOD AND APPARATUS FOR RATE DISTORTION OPTIMISATION 审中-公开
标题翻译：用于速率失真优化的方法和装置
公开(公告)号：WO2010118780A1
公开(公告)日：2010-10-21
申请号：PCT/EP2009/054596
申请日：2009-04-17
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) , SPICER, Ryan , BOCK, Alois Martin
发明人： SPICER, Ryan , BOCK, Alois Martin
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/192 , H04N19/103 , H04N19/124 , H04N19/13 , H04N19/147 , H04N19/176 , H04N19/19 , H04N19/436
摘要： There is provided a method of Rate Distortion Optimisation in digital video coding, comprising determining a mean square error and bit cost for a plurality of QP points for each macroblock coding mode option under consideration, and selecting a best macroblock coding mode option dependent upon an interpolation of the plurality of QP points for each macroblock coding mode option under consideration. There is also provided a Rate Distortion Optimisation apparatus for carrying out the method, and a computer readable medium carrying instructions to carry out the method.
摘要翻译：提供了一种数字视频编码中的速率失真优化方法，其中包括针对所考虑的每个宏块编码模式选项确定多个QP点的均方误差和位成本，以及根据插值选择最佳宏块编码模式选项对于所考虑的每个宏块编码模式选项的多个QP点。还提供了一种用于执行该方法的速率失真优化装置，以及携带执行该方法的指令的计算机可读介质。

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