公开(公告)号：AU2013300958A1

公开(公告)日：2015-02-12

申请号：AU2013300958

申请日：2013-08-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： SASAI HISAO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU ,  TERADA KENGO

IPC: H04N19/91

Abstract: An image decoding method capable of appropriately decoding an image by a simple configuration is an image decoding method for decoding an encoded image included in a bit stream block by block, and comprises: arithmetically decoding a block to be decoded (S101); determining whether or not the block to be decoded is located at the end of a slice (S103); when determining that the block to be decoded is not located at the end of the slice, determining whether or not the block to be decoded is located at the end of a sub unit that is an image constituent unit different from the slice (S105); and when determining that the block to be decoded is located at the end of the sub unit, performing termination processing of arithmetic decoding by arithmetically decoding a sub end bit (S106).

公开(公告)号：SG11201408361TA

公开(公告)日：2015-01-29

申请号：SG11201408361T

申请日：2013-06-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： TERADA KENGO ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU

Abstract: An image coding method using arithmetic coding. The method includes: performing arithmetic coding on a first flag (greater1_flag) that indicates whether or not an absolute value of a target coefficient in a target coefficient block is greater than 1 (S701); and performing arithmetic coding on a second flag (greater2_flag) that indicates whether or not the absolute value is greater than 2 (S702). In the arithmetic coding on the first flag and the arithmetic coding on the second flag, it is determined whether or not an immediately-prior coefficient block that has been coded immediately prior to the target coefficient block includes a coefficient having an absolute value greater than a threshold value (S711). Based on a result of the determination, respective contexts to be used in the arithmetic coding on the first and second flags are selected (S712).

公开(公告)号：AU2013311185A1

公开(公告)日：2015-01-29

申请号：AU2013311185

申请日：2013-08-08

Applicant: PANASONIC IP CORP AMERICA

Inventor： TERADA KENGO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU

IPC: H04N19/00

Abstract: An image encoding method comprises an encoding step (S911) of encoding coefficient information, a first flag that indicates whether to quantize one or more blocks using a plurality of quantization matrices, a second flag that indicates whether the plurality of quantization matrices are included in a sequence parameter set, and a third flag that indicates whether the plurality of quantization matrices are included in a picture parameter set, and a quantization step (S912) of quantizing a plurality of coefficients. When one or more blocks are to be quantized using a plurality of default matrices, the first flag indicating that one or more blocks are to be quantized using the plurality of quantization matrices, the second flag indicating that the plurality of quantization matrices are not included in the sequence parameter set, and the third flag indicating that the plurality of quantization matrices are not included in the picture parameter set, are encoded in the encoding step.

公开(公告)号：MX2014012269A

公开(公告)日：2014-12-05

申请号：MX2014012269

申请日：2013-04-11

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SASAI HISAO ,  TANIKAWA KYOKO ,  MATSUNOBU TORU ,  TERADA KENGO ,  TOMA TADAMASA

IPC: H04N19/563

Abstract: Un método de codificación de imágenes para codificar una o más unidades que están incluidas en una imagen, que comprende: generar una primera bandera que indica si sí o no se fija por unidad (S221) un tiempo de eliminación de datos codificados de un búfer para almacenar los datos codificado mediante un decodificador hipotético; generar una segunda bandera que indica si es constante o arbitrario un intervalo entre los tiempos de eliminación de las unidades cuando el tiempo de eliminación se fija por unidad (S222); y generar una corriente de bits codificada que incluye los datos codificados, la primera bandera y la segunda bandera (S223).

公开(公告)号：JP2015092744A

公开(公告)日：2015-05-14

申请号：JP2015001893

申请日：2015-01-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： TERADA KENGO ,  NISHI TAKAHIRO ,  SASAI TOSHIRO

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/16 ,  H04N19/172 ,  H04N19/31 ,  H04N19/46

Abstract: 【課題】画像を効率的に符号化する。【解決手段】画像符号化方法は、対象ピクチャがTSAピクチャであるかトレイリングピクチャであるかを決定する決定ステップ(S301)と、複数のピクチャを符号化する符号化ステップ(S302)とを含み、決定ステップ(S301)では、対象ピクチャが最上位階層に属さず、第1フィールドに該当する場合、対象ピクチャがTSAピクチャであると決定し、対象ピクチャが最上位階層に属する場合、または、対象ピクチャが第2フィールドに該当する場合、対象ピクチャがトレイリングピクチャであると決定し、符号化ステップ(S302)では、対象ピクチャがTSAピクチャであると決定された場合、所定の参照を禁止して、未符号化ピクチャを符号化し、対象ピクチャがトレイリングピクチャであると決定された場合、所定の参照を許可して、未符号化ピクチャを符号化する。【選択図】図10

公开(公告)号：JP2015092742A

公开(公告)日：2015-05-14

申请号：JP2015001254

申请日：2015-01-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： TERADA KENGO ,  NISHI TAKAHIRO ,  SASAI TOSHIRO ,  YOSHIKAWA TETSUSHI

IPC: H04N19/70 ,  H04N19/31

Abstract: 【課題】画像を効率的に復号する。【解決手段】画像復号方法は、画像が階層符号化されることで得られた符号列251を復号する画像復号方法であって、符号列251から画像を復号する画像復号ステップ(S401)と、符号列251から階層符号化における階層数を示す第1情報を復号する情報復号ステップ(S402)と、第1情報で示される階層数を用いて、復号された画像を並び替えて出力する並び替えステップ(S403)とを含み、前記階層数は、符号列251のフレームレートに応じて予め決定された最大階層数以下である。【選択図】図16

公开(公告)号：BR112014008403B1

公开(公告)日：2022-05-10

申请号：BR112014008403

申请日：2012-09-25

Applicant: PANASONIC CORP ,  PANASONIC IP CORP AMERICA ,  SUN PATENT TRUST

Inventor： SASAI HISAO ,  TERADA KENGO ,  TANIKAWA KYOKO ,  NISHI TAKAHIRO ,  MATSUNOBU TORU ,  SUGIO TOSHIYASU ,  SHIBAHARA YOUJI

IPC: H04N19/105 ,  H04N19/149 ,  H04N19/176 ,  H04N19/192 ,  H04N19/46 ,  H04N19/52

Abstract: método de codificação de imagem, aparelho de codificação de imagem, método de decodificação de imagem, e aparelho de decodificação de imagem. a invenção refere-se a um método de codificação de imagem compreendendo: uma primeira etapa de derivação (s113) para implementar primeiro processamento de derivação, pelo que candidatos de fusão, que são conjuntos de candidatos de direções de previsão, vetores de movimento, e índices de imagem de referência para uso ao codificar blocos para serem codificados, são derivados como primeiros candidatos de fusão; uma segunda etapa de derivação (s115) para implementar segundo processamento de derivação, pelo que candidatos de fusão são derivados como segundos candidatos de fusão usando um método diferente a partir do primeiro processamento de derivação; uma etapa de seleção (s120) para selecionar candidatos de fusão para serem usados para codificar blocos para serem codificados a partir dos primeiros candidatos de fusão e dos segundos candidatos de fusão; e uma etapa de adição (s130) para adicionar um índice especificando o candidato de fusão selecionado para uma corrente de bit.

公开(公告)号：AU2013311185A2

公开(公告)日：2015-02-19

申请号：AU2013311185

申请日：2013-08-08

Applicant: PANASONIC IP CORP AMERICA

Inventor： TERADA KENGO ,  SHIBAHARA YOUJI ,  TANIKAWA KYOKO ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  MATSUNOBU TORU

IPC: H04N19/00

Abstract: An image encoding method comprises an encoding step (S911) of encoding coefficient information, a first flag that indicates whether to quantize one or more blocks using a plurality of quantization matrices, a second flag that indicates whether the plurality of quantization matrices are included in a sequence parameter set, and a third flag that indicates whether the plurality of quantization matrices are included in a picture parameter set, and a quantization step (S912) of quantizing a plurality of coefficients. When one or more blocks are to be quantized using a plurality of default matrices, the first flag indicating that one or more blocks are to be quantized using the plurality of quantization matrices, the second flag indicating that the plurality of quantization matrices are not included in the sequence parameter set, and the third flag indicating that the plurality of quantization matrices are not included in the picture parameter set, are encoded in the encoding step.

公开(公告)号：SG11201406829YA

公开(公告)日：2014-11-27

申请号：SG11201406829Y

申请日：2013-04-11

Applicant: PANASONIC IP CORP AMERICA

Inventor： TOMA TADAMASA ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  TANIKAWA KYOKO ,  MATSUNOBU TORU ,  TERADA KENGO

IPC: G06T9/00 ,  H04N19/44 ,  H04N19/70

公开(公告)号：AU2013254214A1

公开(公告)日：2014-11-20

申请号：AU2013254214

申请日：2013-04-11

Applicant: PANASONIC IP CORP AMERICA

Inventor： TOMA TADAMASA ,  NISHI TAKAHIRO ,  SHIBAHARA YOUJI ,  SASAI HISAO ,  SUGIO TOSHIYASU ,  TANIKAWA KYOKO ,  MATSUNOBU TORU ,  TERADA KENGO

IPC: H04N19/00

Abstract: This image encoding method encodes at least one unit contained in a picture, and includes: a first flag generating step (S221) for generating a first flag indicating whether or not the times that a virtual decoder reads encoded data from a buffer for storing the encoded data are set in units of the units; a second flat generating step (S222) for, when the times are set in units of the units, generating a second flag indicating whether the intervals between the read times of the plurality of units are fixed or arbitrary; and a bitstream generation step (S223) for generating an encoded bitstream containing the encoded data, the first flag, and the second flag.