公开(公告)号：EP4030758A1

公开(公告)日：2022-07-20

申请号：EP20863633.2

申请日：2020-09-10

申请人： Panasonic Intellectual Property Corporation of America

发明人： DRUGEON, Virginie ,  TOMA, Tadamasa ,  NISHI, Takahiro ,  ABE, Kiyofumi ,  KATO, Yusuke

IPC分类号： H04N19/30 ,  H04N19/70

摘要： An encoder (100) includes circuitry, and memory coupled to the circuitry. The circuitry, in operation, generates an encoded bitstream. When a multi-layer structure is to be included in the encoded bitstream to be generated, the circuitry generates the encoded bitstream by including a sequence parameter set that refers to a video parameter set. When the multi-layer structure is not to be included in the encoded bitstream to be generated, the circuitry generates the encoded bitstream by including a sequence parameter set that does not refer to the video parameter set.

公开(公告)号：EP4030757A1

公开(公告)日：2022-07-20

申请号：EP20863053.3

申请日：2020-09-10

申请人： Panasonic Intellectual Property Corporation of America

发明人： DRUGEON, Virginie ,  TOMA, Tadamasa ,  NISHI, Takahiro ,  ABE, Kiyofumi ,  KATO, Yusuke

IPC分类号： H04N19/30 ,  H04N19/70

摘要： An encoder (100) includes: circuitry and memory coupled to the circuitry. In the encoder (100), in operation, the circuitry: upon generating an encoded bitstream that includes a multi-layer structure, when it is allowed to arbitrarily specify by a decoder a layer to be output by the decoder, sets a syntax element for specifying a layer that is allowed to be output by the decoder, to a value indicating that it is allowed to arbitrarily specify the layer to be output; and generates the encoded bitstream that includes the multi-layer structure.

公开(公告)号：EP3989575A1

公开(公告)日：2022-04-27

申请号：EP20826441.6

申请日：2020-06-15

申请人： Panasonic Intellectual Property Corporation of America

发明人： TOMA, Tadamasa ,  NISHI, Takahiro ,  ABE, Kiyofumi ,  KATO, Yusuke

IPC分类号： H04N19/577

摘要： An encoder (100) includes circuitry and memory connected to the circuitry. The circuitry, in operation: derives, as a first parameter, a total sum of absolute values of sums of horizontal gradient values respectively for pairs of relative pixel positions; derives, as a second parameter, a total sum of absolute values of sums of vertical gradient values respectively for the pairs of relative pixel positions; derives, as a third parameter, a total sum of horizontal-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fourth parameter, a total sum of vertical-related pixel difference values respectively for the pairs of relative pixel positions; derives, as a fifth parameter, a total sum of vertical-related sums of horizontal gradient values respectively for the pairs of relative pixel positions; and generates a prediction image to be used to encode the current block using the first, second, third, fourth, and fifth parameters.