公开(公告)号：JP2015092650A

公开(公告)日：2015-05-14

申请号：JP2014135812

申请日：2014-07-01

Applicant: PANASONIC IP CORP AMERICA

Inventor： YOSHIKAWA TETSUSHI ,  SASAI TOSHIRO ,  TERADA KENGO

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/537

Abstract: 【課題】符号化効率を向上する。【解決手段】画像符号化方法は、カレントブロックの参照先を示す参照情報として、平行移動成分と非平行移動成分とを含む複数の変換成分のうち2以上の変換成分を選択する選択ステップ(S601)と、前記複数の変換成分の中から、選択された前記2以上の変換成分を特定するための選択情報を符号化する選択情報符号化ステップ(S604)と、前記カレントブロックとは異なる符号化済みブロックの参照情報を用いて、前記カレントブロックの前記参照情報を符号化する参照情報符号化ステップ(S605)とを含む。【選択図】図31

公开(公告)号：BR112013027350B1

公开(公告)日：2022-06-07

申请号：BR112013027350

申请日：2012-10-18

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

Inventor： CHONG SOON LIM ,  HAI WEI SUN ,  SASAI HISAO ,  TERADA KENGO ,  TANIKAWA KYOKO ,  SUE MON THET NAING ,  NISHI TAKAHIRO ,  MATSUNOBU TORU ,  SUGIO TOSHIYASU ,  WAHADANIAH VIKTOR ,  SHIBAHARA YOUJI

IPC: H04N7/00

Abstract: métodos e codificação de imagem, método de decodificação de imagem, aparelho de codificação de imagem e aparelho de decodificação de imagem. trata-se de um método de codificação de imagem que inclui: derivar um candidato para um estimador de vetor de movimento a partir de um vetor de movimento colocalizado (s1301); adicionar o candidato a uma lista (s1302); selecionar o estimador de vetor de movimento a partir da lista (s1303); e codificar um bloco atual e codificar um vetor de movimento atual (s1304), em que a derivação (s1301) inclui: derivar o candidato por um primeiro esquema de derivação no caso de determinar que cada um dentre uma imagem referência atual e uma imagem referência colocalizada é uma imagem referência de longo prazo; e derivar o candi-dato por um segundo esquema de derivação no caso de determinar que cada uma dentre a imagem referência atual e a imagem referência colocalizada é uma imagem referência de curto prazo.

公开(公告)号：SG11201500612PA

公开(公告)日：2015-04-29

申请号：SG11201500612P

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

Abstract: An image decoding method of decoding, on a per-block basis, a coded image included in a bitstream, includes: performing arithmetic decoding on a current block to be decoded (S101); determining whether or not the current block is at the end of a slice(S103); determining, when it is determined that the current block is not at the end of the slice, whether or not the current block is at the end of a sub-stream which is a structural unit of the image that is different from the slice (S105); and performing arithmetic decoding on a sub-last bit and performing arithmetic decoding termination, when it is determined that the current block is at the end of the sub-stream (S106).

公开(公告)号：MX2013014738A

公开(公告)日：2014-07-16

申请号：MX2013014738

申请日：2013-05-20

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N19/176

Abstract: Se describe un método de codificación de imágenes incluye: (S141) realizar un procesamiento de SAO de muestras en una señal Y, una señal Cb y una señal Cr las cuales están incluidas en un bloque objetivo; (S142) realizar una codificación aritmética en un primer indicador (sao_merge_left_flag) que señala si un parámetro de SAO, el cual indica detalles del procesamiento de SAO, del bloque objetivo es idéntico o no a un parámetro de SAO para el bloque adyacente izquierdo inmediatamente a la izquierda del bloque objetivo; y (S144) realizar una codificación aritmética en el parámetro de SAO para el bloque objetivo, cuando el parámetro de SAO para el bloque objetivo es diferente del parámetro de SAO para el bloque adyacente izquierdo (No en S143). En la codificación aritmética en el primer indicador, un contexto individual se utiliza para realizar la codificación aritmética en el primer indicador para la señal de luminancia, la señal de crominancia Cb y la señal de crominancia Cr.

公开(公告)号：MY190934A

公开(公告)日：2022-05-23

申请号：MYPI2018000862

申请日：2016-12-01

Applicant: PANASONIC IP CORP AMERICA

Inventor： NISHI TAKAHIRO ,  TERADA KENGO ,  KOASHI YUI ,  TOMA TADAMASA

IPC: G06T19/00 ,  H04N1/41 ,  H04N19/20

Abstract: Provided is a three-dimensional data encoding method capable of providing random access functionality for encoded three-dimensional data. The three-dimensional data encoding method is a three-dimensional data encoding method for encoding three-dimensional data (111), the method including: dividing (S103) the three-dimensional data (111) into first processing units, each being a random access unit and being associated with three-dimensional coordinates; and encoding (S104) each of the first processing units to generate encoded three-dimensional data (112). Figure 7.

公开(公告)号：AU2013278760A1

公开(公告)日：2014-12-11

申请号：AU2013278760

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

IPC: H04N19/00

Abstract: Provided is an image encoding method that uses arithmetic encoding and that comprises the following: a first flag encoding step (S701) for arithmetically encoding a first flag (greater1_flag) indicating whether an absolute value of a processing-object coefficient included in the coefficient block of the processing object is greater than 1; and a second flag encoding step (S702) for arithmetically encoding a second flag (greater2_flag) indicating whether the absolute value of the processing-object coefficient is greater than 2. In the first flag encoding step and the second flag encoding step, it is determined whether there is a coefficient the absolute value of which exceeds a threshold in the coefficient block immediately prior to the coefficient block of the processing object (S711), and depending on the determination results, the context used in the arithmetic encoding of the first flag and the second flag is switched (S712).

公开(公告)号：CA2879707A1

公开(公告)日：2014-02-13

申请号：CA2879707

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: H04N19/13 ,  H04N19/174 ,  H04N19/176 ,  H04N19/61

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：CA2875196A1

公开(公告)日：2013-12-27

申请号：CA2875196

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

IPC: H04N19/103 ,  H04N19/136 ,  H04N19/146

Abstract: Provided is an image encoding method that uses arithmetic encoding and that comprises the following: a first flag encoding step (S701) for arithmetically encoding a first flag (greater1_flag) indicating whether an absolute value of a processing-object coefficient included in the coefficient block of the processing object is greater than 1; and a second flag encoding step (S702) for arithmetically encoding a second flag (greater2_flag) indicating whether the absolute value of the processing-object coefficient is greater than 2. In the first flag encoding step and the second flag encoding step, it is determined whether there is a coefficient the absolute value of which exceeds a threshold in the coefficient block immediately prior to the coefficient block of the processing object (S711), and depending on the determination results, the context used in the arithmetic encoding of the first flag and the second flag is switched (S712).

公开(公告)号：CA2879707C

公开(公告)日：2021-05-18

申请号：CA2879707

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: H04N19/13 ,  H04N19/174 ,  H04N19/176 ,  H04N19/61

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：CA2877614C

公开(公告)日：2020-05-12

申请号：CA2877614

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: H04N19/126 ,  H04N19/176 ,  H04N19/18 ,  H04N19/70

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.