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    REFERENCE PICTURE LIST HANDLING
    1.
    发明公开
    REFERENCE PICTURE LIST HANDLING 审中-公开
    搬运参考图片列表

    公开(公告)号：EP2761872A1

    公开(公告)日：2014-08-06

    申请号：EP12784758.0

    申请日：2012-09-27

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： SAMUELSSON, Jonatan ,  SJÖBERG, Rickard

    IPC分类号： H04N7/26

    CPC分类号： H04N19/107 ,  H04N19/31 ,  H04N19/503 ,  H04N19/70

    摘要： In a method performed by an encoder according to a first aspect a one-bit flag is signaled, wherein the one-bit flag is associated with a reference picture in a buffer description for the current picture. The one-bit flag is set to explicitly indicate to a decoder if the reference picture should be included in a list of reference pictures or not included in the list of reference pictures. The list of reference pictures indicates which pictures that can be used for decoding the current picture.

    ROW EVALUATION RATE CONTROL
    3.
    发明公开
    ROW EVALUATION RATE CONTROL 审中-公开
    线路评价率控制

    公开(公告)号：EP2301251A1

    公开(公告)日：2011-03-30

    申请号：EP08767232.5

    申请日：2008-06-25

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： SAMUELSSON, Jonatan ,  FRÖJDH, Per ,  PRIDDLE, Clinton ,  SJÖBERG, Rickard

    IPC分类号： H04N7/26

    CPC分类号： H04N19/174 ,  H04N19/115 ,  H04N19/124 ,  H04N19/139 ,  H04N19/142 ,  H04N19/149 ,  H04N19/61

    摘要： A communication device and method for controlling a bit rate when encoding video data that includes a plurality of frames. The method includes partitioning a received current frame into groups of blocks; estimating an energy for a current group of blocks, where the energy of the current group of blocks depends from a same group of blocks in a previous frame; determining a target number of bits for the current group of blocks; calculating a quantization parameter for the current group of blocks of the current frame based on the estimated energy of the current group of blocks and the determined target number of bits for the current group of blocks; and encoding the current group of blocks based on the calculated quantization parameter.

    REFERENCE PICTURE MANAGEMENT FOR LAYERED VIDEO
    4.
    发明公开
    REFERENCE PICTURE MANAGEMENT FOR LAYERED VIDEO 审中-公开
    基准图像管理FOR分层视频内容

    公开(公告)号：EP2730088A2

    公开(公告)日：2014-05-14

    申请号：EP12775118.8

    申请日：2012-05-04

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： SAMUELSSON, Jonatan ,  SJÖBERG, Rickard

    IPC分类号： H04N7/32

    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.

    ABSOLUTE OR EXPLICIT REFERENCE PICTURE SIGNALING
    5.
    发明公开
    ABSOLUTE OR EXPLICIT REFERENCE PICTURE SIGNALING 审中-公开
    绝对或明确提及图片信令

    公开(公告)号：EP2687012A1

    公开(公告)日：2014-01-22

    申请号：EP12724781.5

    申请日：2012-04-27

    申请人： Telefonaktiebolaget L M Ericsson (PUBL)

    发明人： SAMUELSSON, Jonatan ,  SJÖBERG, Rickard

    IPC分类号： H04N7/26 ,  H04N7/36 ,  H04N7/50 ,  H04N7/64

    CPC分类号： H04N19/433 ,  H04N19/46 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70 ,  H04N19/89

    摘要： An encoded representation (60) of a picture (10) of a video stream (1) is decoded by retrieving buffer description information identifying a buffer description defining multiple reference pictures (40, 42) of the video stream (1) from the encoded representation (60). A picture identifier of a reference picture (42) is determined based on picture identifier information retrieved from the buffer description for the reference picture (42) and a reference picture preceding the reference picture according to a list order in the buffer description. The determined picture identifier is used to update a decoded picture buffer (230, 350) that stores reference pictures (40, 42) to be used as decoding reference for the picture (10) and/or any subsequent picture (50) of the video stream (1).

    ADAPTIVE FILTERING
    6.
    发明公开
    ADAPTIVE FILTERING 有权
    自适应滤波

    公开(公告)号：EP2232874A1

    公开(公告)日：2010-09-29

    申请号：EP08869247.0

    申请日：2008-10-08

    申请人： Telefonaktiebolaget L M Ericsson (publ)

    发明人： ANDERSSON, Kenneth ,  FRÖJDH, Per ,  PRIDDLE, Clinton ,  SAMUELSSON, Jonatan ,  SJÖBERG, Rickard

    IPC分类号： H04N7/26 ,  H04N7/50

    CPC分类号： H04N19/82 ,  H04N19/117 ,  H04N19/136 ,  H04N19/176 ,  H04N19/463 ,  H04N19/61 ,  H04N19/70

    摘要： An adaptive filter having multiple filter parameters is determined by defining at least one filter parameter as having a first level of adaptivity and defining at least one other filter parameter as having a second, different level of adaptivity. The parameter values for the at least one filter parameter having the first level of adaptivity are determined among a first set of allowable filter parameter values. The parameter values for the at least one filter parameter having the second level of adaptivity are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters of the adaptive filter are achieved as the second set comprises more allowable filter parameter values than the first set. The adaptive filter is advantageously used in filtering in intra or inter predication during video encoding and decoding.