公开(公告)号：MX337291B

公开(公告)日：2016-02-24

申请号：MX2015003467

申请日：2013-11-19

Applicant: PANASONIC IP CORP AMERICA

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

IPC: H04N7/12 ,  H04N19/00

Abstract: El método de decodificación de imágenes de una modalidad de la presente invención comprende: un paso de control de contexto (S204) para determinar el contexto que se utiliza para un bloque que es procesado, entre una pluralidad de contextos; y un paso de decodificación aritmética (S210) para utilizar el contexto determinado para decodificar aritméticamente una secuencia de bits que corresponde al bloque que es procesado. En el paso de control de contexto (S204), si un tipo de señal para parámetros de control es un primer tipo, el contexto se determina mediante el uso de una condición que utiliza parámetros de control para tanto un bloque izquierdo como un bloque superior, los cuales son adyacentes al bloque que es procesado (S206), y si el tipo de señal para los parámetros de control es un segundo tipo, el contexto se determina mediante el uso de una condición que no utiliza el parámetro de control para el bloque superior (S207).

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：AU2021298392A2

公开(公告)日：2023-02-16

申请号：AU2021298392

申请日：2021-06-23

Applicant: PANASONIC IP CORP AMERICA

Inventor： IGUCHI NORITAKA ,  SUGIO TOSHIYASU

IPC: G06T9/00

Abstract: This three-dimensional data encoding method comprises generating a plurality of frame data items by encoding point cloud data of a plurality of frames (S12021), and generating a bitstream containing the plurality of frame data items (S12022). Each of a plurality of processing unit data items includes a frame identifier indicating a frame to which the processing unit data belongs and a processing unit identifier indicating a processing unit corresponding to the processing unit data. The values of the plurality of frame identifiers corresponding to the plurality of frame data items arranged in the bitstream are set in a predetermined order. The values of the plurality of processing unit identifiers corresponding to the plurality of processing unit data items arranged in the frame data are set in an arbitrarily defined order.

公开(公告)号：MX2021010964A

公开(公告)日：2021-10-13

申请号：MX2021010964

申请日：2020-03-18

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  IGUCHI NORITAKA ,  LASANG PONGSAK ,  HAN CHUNG DEAN

IPC: G06T9/00

Abstract: Un método de codificación de datos tridimensionales usa un primer esquema de codificación y un segundo esquema de codificación diferente del primer esquema de codificación, incluye: (i) transformar un primer parámetro de cuantificación en un primer valor de escala o (ii) transformar el primer valor de escala al primer parámetro de cuantificación, basándose en una primera tabla que indica una correspondencia entre los valores del primer parámetro de cuantificación y los valores del primer valor de escala y que es compartida entre el primer esquema de codificación y el segundo esquema de codificación (S7921); realizar la codificación incluyendo un primer proceso de cuantificación para generar información de atributos codificada, siendo el primer proceso de cuantificación un proceso de división, por el primer valor de escala, de cada uno de los primeros valores de coeficiente basados en elementos de información de atributos de puntos tridimensionales incluidos en los datos de la nube de puntos (S7922); y generar un flujo de bits incluyendo la información de atributos codificada y el primer parámetro de cuantificación (S7923).

公开(公告)号：BR112021010082A2

公开(公告)日：2021-08-24

申请号：BR112021010082

申请日：2019-12-20

Applicant: PANASONIC IP CORP AMERICA

Inventor： IGUCHI NORITAKA ,  SUGIO TOSHIYASU

IPC: G06T9/00

Abstract: método de codificação de dados tridimensionais, método de decodificação de dados tridimensionais, dispositivo de codificação de dados tridimensionais e dispositivo de decodificação de dados tridimensionais. a invenção refere-se a um método de codificação de dados tridimensionais que compreende as etapas de: computar uma pluralidade de valores de diferença entre cada uma dentre uma pluralidade de partes de informação de atributo de uma pluralidade de pontos tridimensionais incluídos em dados de grupo de pontos e valores preditos correspondendo à informação de atributo (s6591); gerar uma segunda sequência de códigos incluindo, em relação a uma primeira sequência de códigos em que a pluralidade de valores de diferença está disposta, a primeira informação (zerocnt) indicando o número de valores de diferença zero contínuos que são valores de diferença tendo um valor de zero e uma segunda informação (valor) indicando valores de valores de diferença diferentes de zero (s6592); e gerar um fluxo de bits incluindo a segunda sequência de códigos (s6593).

公开(公告)号：CA3114322A1

公开(公告)日：2020-04-09

申请号：CA3114322

申请日：2019-10-02

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  IGUCHI NORITAKA

IPC: G06T9/00

Abstract: A three-dimensional data encoding method includes: acquiring third point cloud data, in which first point cloud data and second point cloud data are combined and which includes position information pertaining to each of a plurality of three-dimensional points included in the third point cloud data and identification information indicating to which of the first point cloud data and the second point cloud data each of the plurality of three-dimensional points belongs (S5661); encoding the acquired third point cloud data and thereby generating encoded data (S5662); and, in generation, encoding the identification information of each of the plurality of three-dimensional points as the attribute information of the three-dimensional point.

公开(公告)号：CA3098586A1

公开(公告)日：2019-11-14

申请号：CA3098586

申请日：2019-05-10

Applicant: PANASONIC IP CORP AMERICA

Inventor： HAN CHUNG DEAN ,  LASANG PONGSAK ,  WANG CHI ,  SUGIO TOSHIYASU

IPC: G06T9/00

Abstract: This three-dimensional data encoding method includes generating a bit stream by encoding a plurality of sub-spaces included in a target space where a plurality of three-dimensional points are included, the generation of the bit stream comprising: storing first information indicating first coordinates which are coordinates of the target space in a first header shared by the plurality of sub-spaces and included in the bit stream (S2831); and storing second information indicating a difference between the first coordinates and second coordinates which are coordinates of a corresponding sub-space in a second header of a sub-space unit included in the bit stream (S2832).

公开(公告)号：CA3090465A1

公开(公告)日：2019-08-15

申请号：CA3090465

申请日：2019-02-07

Applicant: PANASONIC IP CORP AMERICA

Inventor： SUGIO TOSHIYASU ,  KOYAMA TATSUYA

IPC: G06T9/40

Abstract: This three-dimensional data encoding method encodes information of a target node contained in an N (where N is an integer at least equal to 2) tree structure of a plurality of three-dimensional points included in three-dimensional data, wherein, in the encoding, among a plurality of adjacent nodes spatially adjacent to the target node, reference to information of a first node having a parent node that is the same as that of the target node is allowed, and reference to information of a second node having a different parent node to that of the target node is prohibited. For example, in the three-dimensional data encoding method, a determination may additionally be performed to ascertain whether to prohibit reference to the information of the second node, and a bit stream including prohibition switching information, which is the result of the determination and indicates whether reference to the information of the second node is to be prohibited, may be generated.