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1. 发明申请

WO2013006114A3 REFERENCE PICTURE MANAGEMENT FOR LAYERED VIDEO 审中-公开
公开(公告)号：WO2013006114A3
公开(公告)日：2013-01-10
申请号：PCT/SE2012/050471
申请日：2012-05-04
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SAMUELSSON, Jonatan , SJÖBERG, Rickard
发明人： SAMUELSSON, Jonatan , SJÖBERG, Rickard
IPC分类号： H04N7/32 , H04N7/26 , H04N7/50 , H04N7/64
摘要： An encoded representation (60) of a picture (10) of a video stream (1) is decoded by retrieving buffer description information defining at least one reference picture (40, 42). The buffer description information is used to determine a picture identifier of a reference picture (40, 42), which is compared to picture identifiers of reference pictures (40, 42) stored in a decoded picture buffer (230, 350). If the reference picture (40, 42) is determined to be missing based on the comparison of picture identifiers the layer identifier of the reference picture (40, 42) obtained based on the buffer description information is compared to a layer identifier of the current picture (10) in order to determine whether the missing reference picture (40, 42) has been intentionally removed or is unintentionally lost.

2. 发明申请

WO2013006114A2 REFERENCE PICTURE MANAGEMENT FOR LAYERED VIDEO 审中-公开
标题翻译：分层视频的参考图片管理
公开(公告)号：WO2013006114A2
公开(公告)日：2013-01-10
申请号：PCT/SE2012050471
申请日：2012-05-04
申请人： ERICSSON TELEFON AB L M , SAMUELSSON JONATAN , SJOEBERG RICKARD
发明人： SAMUELSSON JONATAN , SJOEBERG RICKARD
IPC分类号： H04N7/32 , H04N19/89
CPC分类号： H04N19/00024 , H04N19/105 , H04N19/30 , H04N19/31 , H04N19/44 , H04N19/503 , H04N19/65
摘要： An encoded representation (60) of a picture (10) of a video stream (1) is decoded by retrieving buffer description information defining at least one reference picture (40, 42). The buffer description information is used to determine a picture identifier of a reference picture (40, 42), which is compared to picture identifiers of reference pictures (40, 42) stored in a decoded picture buffer (230, 350). If the reference picture (40, 42) is determined to be missing based on the comparison of picture identifiers the layer identifier of the reference picture (40, 42) obtained based on the buffer description information is compared to a layer identifier of the current picture (10) in order to determine whether the missing reference picture (40, 42) has been intentionally removed or is unintentionally lost.
摘要翻译：视频流（1）的图片（10）的编码表示（60）通过检索定义至少一个参考图片（40,42）的缓冲区描述信息来解码。缓冲器描述信息被用于确定参考图片（40,42）的图片标识符，其与存储在解码图片缓冲器（230,350）中的参考图片（40,42）的图片标识符进行比较。如果基于图片标识符的比较确定参考图片（40,42）缺失，则将基于缓冲区描述信息获得的参考图片（40,42）的层标识符与当前图片的层标识符进行比较（10），以便确定是否故意去除了或者无意中丢失了缺失的参考图片（40,42）。

3. 发明申请

WO2012096622A1 METHODS AND DEVICES FOR INTRA CODING OF VIDEO 审中-公开
标题翻译：视频内部编码的方法和设备
公开(公告)号：WO2012096622A1
公开(公告)日：2012-07-19
申请号：PCT/SE2012/050017
申请日：2012-01-12
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , SJÖBERG, Rickard , SAMUELSSON, Jonatan , WENNERSTEN, Per
发明人： SJÖBERG, Rickard , SAMUELSSON, Jonatan , WENNERSTEN, Per
IPC分类号： H04N7/34 , H04N7/26
CPC分类号： H04N19/59 , H04N19/159 , H04N19/174 , H04N19/176 , H04N19/182 , H04N19/50
摘要： Encoder, decoder and methods for intra coding of video. The method in the decoder relates to decoding of an intra coded block IZ having a number N of neighboring blocks CU 1 -CU N . When at least one block CU k of the number of neighboring blocks is unavailable for intra prediction, pixel values for spatial positions covered by CU k are estimated based on at least one pixel value of at least one of blocks CU k-m and CU k+p within the range [CU 1 -CU k-1 , CUk+1-CU N ] of blocks, which is available for intra prediction. Further, the block IZ is decoded, using the estimated pixel values for prediction, thus generating a block Z of pixels. k, m and p are integers, and 1 ≤ k ≤ N; 1 ≤ m
摘要翻译：编码器，解码器和视频内编码方法。解码器中的方法涉及具有相邻块CU1-CUN的数目N的帧内编码块IZ的解码。当相邻块的数量的至少一个块CU k不可用于帧内预测时，基于CUK-m和CUk + p中的至少一个块CUk-m和CUk + p中的至少一个的像素值来估计由CUK覆盖的空间位置的像素值范围[CU1-CUK-1，CUK + 1-CUN]，可用于帧内预测。此外，使用估计的用于预测的像素值来解码块IZ，从而生成像素的块Z。 k，m和p是整数，1 = k = N; 1 = m

4. 发明申请

WO2013048311A1 DECODERS AND METHODS THEREOF FOR MANAGING PICTURES IN VIDEO DECODING PROCESS 审中-公开
标题翻译：用于管理视频解码过程中的图像的解码器及其方法
公开(公告)号：WO2013048311A1
公开(公告)日：2013-04-04
申请号：PCT/SE2012/050992
申请日：2012-09-20
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (publ) , SAMUELSSON, Jonatan , SJÖBERG, Rickard , WENNERSTEN, Per
发明人： SAMUELSSON, Jonatan , SJÖBERG, Rickard , WENNERSTEN, Per
IPC分类号： H04N7/26
CPC分类号： H04N19/00533 , H04N19/31 , H04N19/44 , H04N19/46 , H04N19/50
摘要： An object with the embodiments of the present invention is to make it well defined from which previously decoded picture to retrieve the values for calculating POC of the current picture regardless of how many temporal layers have been decoded. That is achieved by determining the POC of the current picture, to be used by the decoder, as a sum of a syntax element pic_order_cnt_lsb and a most significant bits of the POC, PicOrderCntMsb, of the current picture, wherein the PicOrderCntMsb of the current picture is derived using at least a prevPicOrderCntMsb and a prevPicOrderCntLsb and the prevPicOrderCntMsb is set equal to the most significant bits of the POC of a previous reference picture in decoding order that has a layer identity equal to zero and prevPicOrderCntLsb is set equal to the value of the least significant bits of the POC of a previous reference picture in decoding order that has a layer identity equal to zero.
摘要翻译：具有本发明的实施例的目的是使其从先前解码的图像中很好地定义，以检索用于计算当前图像的POC的值，而不管已经解码了多少时间层。这是通过将解码器使用的当前画面的POC确定为当前画面的语法元素pic_order_cnt_lsb和POC，PicOrderCntMsb的最高有效位的总和来实现的，其中当前画面的PicOrderCntMsb 使用至少一个prevPicOrderCntMsb和prevPicOrderCntLsb导出，并且将prevPicOrderCntMsb设置为等于先前参考图片的POC的最高有效位，其解码顺序具有等于零的层标识，并且将prevPicOrderCntLsb设置为等于解码顺序中先前参考图片的POC的最低有效位具有等于零的层标识。

5. 发明申请

WO2013012372A1 AN ENCODER AND METHOD THEREOF FOR ASSIGNING A LOWEST LAYER IDENTITY TO CLEAN RANDOM ACCESS PICTURES 审中-公开
标题翻译：用于将最低层识别符用于清洁随机访问图像的编码器及其方法
公开(公告)号：WO2013012372A1
公开(公告)日：2013-01-24
申请号：PCT/SE2012/050712
申请日：2012-06-26
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , SJÖBERG, Rickard , SAMUELSSON, Jonatan
发明人： SJÖBERG, Rickard , SAMUELSSON, Jonatan
IPC分类号： H04N7/26 , H04N7/50
CPC分类号： H04N19/33 , H04N19/107 , H04N19/187 , H04N19/46 , H04N19/61 , H04N19/70
摘要： The embodiments of the present invention relates to an encoder and a method thereof for management of self contained pictures referred to as CRA pictures, wherein the CRA picture is identified as a random access point. The CRA pictures are assigned a lowest layer identity.
摘要翻译：本发明的实施例涉及用于管理被称为CRA图像的自包含图片的编码器及其方法，其中CRA图像被识别为随机接入点。 CRA图片被分配最低层标识。

6. 发明申请

WO2013002716A2 A METHOD A DECODER AND ENCODER FOR PROCESSING A MOTION VECTOR 审中-公开
标题翻译：用于处理运动矢量的解码器和编码器的方法
公开(公告)号：WO2013002716A2
公开(公告)日：2013-01-03
申请号：PCT/SE2012/050716
申请日：2012-06-27
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , STRÖM, Jacob , SJÖBERG, Rickard , SAMUELSSON, Jonatan
发明人： STRÖM, Jacob , SJÖBERG, Rickard , SAMUELSSON, Jonatan
IPC分类号： H04N7/26
CPC分类号： H04N19/00703 , H04N19/102 , H04N19/14 , H04N19/176 , H04N19/192 , H04N19/52 , H04N19/521 , H04N19/523
摘要： A method executed in the decoder is provided for determining the resolution of a motion vector specifying a reference block on the basis of the smoothness of pixels in a block, the position of this block being an approximation of the position of the reference block. If the block is considered smooth a first resolution will be accurate, while if the block is considered to be non-smooth, one or more refinement bits will be expected for adaptation at the decoder. A method executed in an encoder, capable of providing pictures to a decoder is also provided, as well as a decoder and encoder configured to execute the described methods.
摘要翻译：提供了一种在解码器中执行的方法，用于基于块中的像素的平滑度来确定指定参考块的运动矢量的分辨率，该块的位置是参考块的位置。如果该块被认为是平滑的，则第一分辨率将是准确的，而如果该块被认为是不平滑的，则预计将在解码器处进行适应的一个或多个细化位。还提供了能够向解码器提供图片的编码器中执行的方法，以及被配置为执行所描述的方法的解码器和编码器。

7. 发明申请

WO2009087095A1 ENCODING FILTER COEFFICIENTS 审中-公开
标题翻译：编码过滤器系数
公开(公告)号：WO2009087095A1
公开(公告)日：2009-07-16
申请号：PCT/EP2009/000065
申请日：2009-01-08
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , PRIDDLE, Clinton , SAMUELSSON, Jonatan , SJÖBERG, Rickard
IPC分类号： H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： A method of encoding a plurality of adaptive filter coefficients (104, 107, 112) into a bitstream (110). The method comprises the steps of entropy encoding (109) the adaptive filter coefficients (104, 107, 112) into the bitstream (110), whereby a prediction (202) for an instance (204) of the adaptive filter coefficients is determined (201 ) based on at least one of the remaining adaptive filter coefficients (206), a prediction error (205) is determined (203) based on the difference between the instance (204) of the adaptive filter coefficients and the prediction (202), and wherein the step of entropy encoding (109) the plurality of adaptive filter coefficients (104, 107, 112) comprises entropy encoding (109) the prediction error (205) for the instance (204) of the adaptive filter coefficients and entropy encoding (109) the remaining adaptive filter coefficients (206). Further is provided a corresponding method of decoding a bitstream (110) of encoded adaptive filter coefficients into decoded adaptive filter coefficients (116, 118, 120, 123).
摘要翻译：一种将多个自适应滤波器系数（104,107,112）编码为比特流（110）的方法。该方法包括以下步骤：将自适应滤波器系数（104,107,112）熵编码（109）到比特流（110）中，由此确定自适应滤波器系数的实例（204）的预测（202）（201 ）基于所述剩余自适应滤波器系数（206）中的至少一个，基于所述自适应滤波器系数的实例（204）与所述预测（202）之间的差确定（203）预测误差（205），以及其中所述多个自适应滤波器系数（104,107,112）的熵编码（109）的步骤包括对所述自适应滤波器系数和熵编码（109）的实例（204）进行熵编码（109）所述预测误差（205））剩余的自适应滤波器系数（206）。还提供了将经编码的自适应滤波器系数的比特流（110）解码为解码的自适应滤波器系数（116,118,120,123）的相应方法。

8. 发明申请

WO2011056140A1 PREDICTION OF PIXELS IN IMAGE CODING 审中-公开
标题翻译：图像编码中像素的预测
公开(公告)号：WO2011056140A1
公开(公告)日：2011-05-12
申请号：PCT/SE2010/051212
申请日：2010-11-05
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , SAMUELSSON, Jonatan , ANDERSSON, Kenneth , SJÖBERG, Rickard
发明人： SAMUELSSON, Jonatan , ANDERSSON, Kenneth , SJÖBERG, Rickard
IPC分类号： H04N7/34 , H04N7/50
CPC分类号： H04N19/50 , H04N19/105 , H04N19/11 , H04N19/176 , H04N19/182 , H04N19/513 , H04N19/553 , H04N19/593 , H04N19/61 , H04N19/80
摘要： A method and arrangement for prediction of pixel values in an image decoder. In an image decoder, a reference vector which is provided by an image encoder is provided 500. An initiation region of pixels is determined 502, which corresponds to a reference region of pixels at the image encoder. The initiation region is spatially displaced in relation to the prediction region according to the reference vector,and a part of the initiation region overlaps a part of the prediction region. Pixel values are assigned 504 to pixels of the prediction region, whose corresponding pixel values in the initiation region are known. Pixel values of the overlapping region of the initiation region are assigned 506to the corresponding pixels in the prediction region, the pixel values being assigned 504. By determining an overlapping initiation region based on a dynamic reference vector, characteristic variations close to the prediction region are possible to utilise when predicting images, which increases the accuracy of the prediction.
摘要翻译：一种用于预测图像解码器中的像素值的方法和装置。在图像解码器中，提供由图像编码器提供的参考矢量500.确定502的像素的起始区域，其对应于图像编码器处的像素的参考区域。起始区域根据参考矢量相对于预测区域空间位移，并且起始区域的一部分与预测区域的一部分重叠。将像素值分配给预测区域的像素，其中起始区域中的相应像素值是已知的。将起始区域的重叠区域的像素值分配为506到预测区域中的对应像素，像素值被分配504.通过基于动态参考矢量确定重叠的起始区域，接近预测区域的特征变化是可能的在预测图像时使用，这增加了预测的准确性。

9. 发明申请

WO2009088353A1 SYSTEMS AND METHODS FOR USING DC CHANGE PARAMETERS IN VIDEO CODING AND DECODING 审中-公开
标题翻译：在视频编码和解码中使用直流变化参数的系统和方法
公开(公告)号：WO2009088353A1
公开(公告)日：2009-07-16
申请号：PCT/SE2009/050005
申请日：2009-01-08
申请人： TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) , ANDERSSON, Kenneth , FRÖJDH, Per , SJÖBERG, Rickard , PRIDDLE, Clinton , SAMUELSSON, Jonatan
发明人： ANDERSSON, Kenneth , FRÖJDH, Per , SJÖBERG, Rickard , PRIDDLE, Clinton , SAMUELSSON, Jonatan
IPC分类号： H04N7/50 , H04N7/26
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/463 , H04N19/61 , H04N19/70
摘要： The present application discloses systems and methods for using DC change parameters in video coding. In one embodiment, the method includes the steps of: (a) obtaining a DC change parameter; (b) decoding encoded video data to obtain reconstructed pixel values; and (c) using the reconstructed pixel values, a filter, and the DC change parameter to obtain filtered reconstructed pixel values with a DC change.
摘要翻译：本申请公开了在视频编码中使用DC变化参数的系统和方法。在一个实施例中，该方法包括以下步骤：（a）获得DC变化参数; （b）解码编码的视频数据以获得重建的像素值; 以及（c）使用重建的像素值，滤波器和DC变化参数来获得具有DC变化的经滤波的重构像素值。

10. 发明申请

WO2009080133A8 ADAPTIVE INTRA MODE SELECTION 审中-公开
公开(公告)号：WO2009080133A8
公开(公告)日：2009-07-02
申请号：PCT/EP2008/006314
申请日：2008-07-31
申请人： TELEFONAKTIEBOLAGET LM ERICSSON (publ) , PRIDDLE, Clinton , ANDERSSON, Kenneth , FRÖJDH, Per , SAMUELSSON, Jonatan
发明人： PRIDDLE, Clinton , ANDERSSON, Kenneth , FRÖJDH, Per , SAMUELSSON, Jonatan
IPC分类号： H04N7/26 , H04N7/50
摘要： In video encoding and decoding predictions may be generated by intra-frame prediction. Intra-frame prediction uses reconstructed pixels in a reconstructed frame. Intra-frame prediction is performed by extending the reconstructed pixels into a predicted block using intra-frame prediction modes, each intra-frame prediction mode indicating a direction of the extension. In order to reduce the number of possible intra- frame prediction modes, a subset is selected from a predetermined set of possible intra- frame prediction modes. A subset of intra-frame prediction modes can be created by forming preselection sets of intra-frame prediction modes on the basis of similarity of their associated predicted blocks and selecting a representative intra-frame prediction mode from each preselection set.

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