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公开(公告)号:CA3096452A1
公开(公告)日:2019-10-24
申请号:CA3096452
申请日:2019-04-18
Applicant: PANASONIC IP CORP AMERICA
Inventor: SUGIO TOSHIYASU , WANG CHI , LASANG PONGSAK , HAN CHUNG DEAN
IPC: G06T9/00
Abstract: This three-dimensional data encoding method: divides (S2631) a plurality of three-dimensional points included in three-dimensional data into a plurality of three-dimensional point sub-groups including a first three-dimensional point sub-group and a second three-dimensional point sub-group; attaches (S2632) first spatial information of the first three-dimensional point sub-group to a header of the first three-dimensional point sub-group, and attaches second spatial information of the second three-dimensional point sub-group to a header of the second three-dimensional point sub-group; and then encodes (S2633) the first three-dimensional point sub-group and the second three-dimensional point sub-group such that the same can be independently decoded.
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公开(公告)号:BR112021013402A2
公开(公告)日:2021-09-14
申请号:BR112021013402
申请日:2020-02-05
Applicant: PANASONIC IP CORP AMERICA
Inventor: WANG CHI , CHUNG DEAN HAN , IGUCHI NORITAKA , LASANG PONGSAK , SUGIO TOSHIYASU
IPC: G06T9/40
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 presente invenção refere-se a método e dispositivo de codificação/decodificação de dados tridimensionais incluindo: calcular valores de coeficiente das partes de informação de atributo de pontos tridimensionais incluídos nos dados de nuvem de pontos (s7091); quantizar os valores de coeficiente individualmente para gerar valores quantizados (s7092); e gerar um fluxo de bits incluindo os valores quantizados (s7093). cada um dos valores de coeficiente pertence a qualquer uma das camadas. na quantização (s7092), cada um dos valores de coeficiente é quantizado usando um parâmetro de quantização para uma camada à qual o valor de coeficiente pertence entre as camadas, e o fluxo de bits inclui primeira informação e partes de segunda informação, a primeira informação indicando um parâmetro de quantização de referência, as partes de segunda informação sendo para calcular parâmetros de quantização para as camadas do parâmetro de quantização de referência.
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公开(公告)号:SG11202102117VA
公开(公告)日:2021-04-29
申请号:SG11202102117V
申请日:2019-09-10
Applicant: PANASONIC IP CORP AMERICA
Inventor: HAN CHUNG DEAN , LASANG PONGSAK , WANG CHI , IGUCHI NORITAKA , SUGIO TOSHIYASU
IPC: G06T9/00
Abstract: A three-dimensional data encoding method includes: quantizing geometry information of each of three-dimensional points, using a first quantization parameter (S5391); quantizing a first luminance using a second quantization parameter and quantizing a first chrominance using a third quantization parameter, the first luminance and the first chrominance indicating a first color among attribute information of each of the three-dimensional points (S5392); and generating a bitstream including the geometry information quantized, the first luminance quantized, the first chrominance quantized, the first quantization parameter, the second quantization parameter, and a first difference between the second quantization parameter and the third quantization parameter (S5393).
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公开(公告)号:SG11202012326TA
公开(公告)日:2021-01-28
申请号:SG11202012326T
申请日:2019-06-14
Applicant: PANASONIC IP CORP AMERICA
Inventor: SUGIO TOSHIYASU , WANG CHI , LASANG PONGSAK , HAN CHUNG DEAN , IGUCHI NORITAKA
IPC: G06T9/40
Abstract: A three-dimensional data encoding method includes: encoding a first flag indicating whether a node having a parent node different from a parent node of a current node is to be referred to in encoding of the current node included in an N-ary tree structure of three-dimensional points included in three-dimensional data, N being an integer greater than or equal to 2 (S3661); selecting a coding table from N coding tables according to occupancy states of neighboring nodes of the current node, and performing arithmetic encoding on information of the current node using the coding table selected, when the first flag indicates that the node is to be referred to (YES in S3662) (S3663); and selecting a coding table from M coding tables according to the occupancy states of the neighboring nodes of the current node, and performing arithmetic encoding on information of the current node using the coding table selected, when the first flag indicates that the node is not to be referred to (NO in S3662), M being an integer different from N (S3664).
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公开(公告)号:CA3126760A1
公开(公告)日:2020-08-13
申请号:CA3126760
申请日:2020-02-05
Applicant: PANASONIC IP CORP AMERICA
Inventor: SUGIO TOSHIYASU , IGUCHI NORITAKA , HAN CHUNG DEAN , WANG CHI , LASANG PONGSAK
IPC: G06T9/40
Abstract: A three-dimensional data encoding method including calculating a plurality of coefficient values from the plurality of attribute information of a plurality of three-dimensional points included in point group data (S7091), generating a plurality of quantized values by quantizing each of the plurality of coefficient values (S7092), and generating a bit stream that includes the plurality of quantized values (S7093), the plurality of coefficient values belonging to one of a plurality of levels, each of the plurality of coefficient values being quantized in the quantization (S7092) using a quantization parameter for the level to which the coefficient value belongs, the bit stream including first information that indicates a reference quantization parameter and a plurality of second information for calculating a plurality of quantization parameters for a plurality of levels from the reference quantization parameter.
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公开(公告)号:CA3103454A1
公开(公告)日:2019-12-19
申请号:CA3103454
申请日:2019-06-14
Applicant: PANASONIC IP CORP AMERICA
Inventor: SUGIO TOSHIYASU , WANG CHI , LASANG PONGSAK , HAN CHUNG DEAN , IGUCHI NORITAKA
IPC: G06T9/40
Abstract: A three-dimensional data encoding method for encoding a target node included in an N-ary (N is an integer of 2 or more) tree structure of a plurality of three-dimensional points included in three-dimensional data comprises: encoding a first flag indicating whether or not to reference a node, the parent node of which is different from that of the target node (S3661); selecting, when the first flag indicates that the other node is referenced (Yes at S3662), an encoding table from N encoding tables in accordance with an occupied state of the target node in an adjacent node, and arithmetically encoding information on the target node by using the selected encoding table (S3663); and selecting, when the first flag indicates that the other node is not referenced (No at S3662), selecting an encoding table from M encoding tables different from N encoding tables in accordance with the occupied state of the target node in the adjacent node, and arithmetically encoding information on the target node by using the selected encoding table (S3664).
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公开(公告)号:AU2024278530A1
公开(公告)日:2025-01-09
申请号:AU2024278530
申请日:2024-12-17
Applicant: PANASONIC IP CORP AMERICA
Inventor: SUGIO TOSHIYASU , WANG CHI , LASANG PONGSAK , HAN CHUNG DEAN , IGUCHI NORITAKA
IPC: G06T9/40
Abstract: A three-dimensional data encoding method includes: encoding a first flag indicating whether a node having a parent node different from a parent node of 5 a current node is to be referred to in encoding of the current node included in an N-ary tree structure of three-dimensional points included in three-dimensional data, N being an integer greater than or equal to 2 (S3661); selecting a coding table from N coding tables according to occupancy states of neighboring nodes of the current node, and performing arithmetic encoding on information of the 10 current node using the coding table selected, when the first flag indicates that the node is to be referred to (YES in S3662) (S3663); and selecting a coding table from M coding tables according to the occupancy states of the neighboring nodes of the current node, and performing arithmetic encoding on information of the current node using the coding table selected, when the first flag indicates that 15 the node is not to be referred to (NO in S3662), M being an integer different from N (S3664). 21403017_1 (GHMatters) P11514.AU.1
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公开(公告)号:BR112021016832A2
公开(公告)日:2021-10-19
申请号:BR112021016832
申请日:2020-03-18
Applicant: PANASONIC IP CORP AMERICA
Inventor: CHUNG DEAN HAN , IGUCHI NORITAKA , LASANG PONGSAK , 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 presente invenção refere-se a um método de codificação de dados tridimensionais que usa um primeiro esquema de codificação e um segundo esquema de codificação diferente do primeiro esquema de codificação, e inclui: (i) transformar um primeiro parâmetro de quantização a um primeiro valor de escala ou (ii) transformar o primeiro valor de escala ao primeiro parâmetro de quantização, com base em uma primeira tabela indicando uma correspondência entre valores do primeiro parâmetro de quantização e valores do primeiro valor de escala e sendo compartilhada entre o primeiro esquema de codificação e o segundo esquema de codificação (s7921); realizar a codificação incluindo um primeiro processo de quantização para gerar informação de atributo codificada, o primeiro processo de quantização sendo um processo de divisão, pelo primeiro valor de escala, cada um dos primeiros valores de coeficiente com base em itens de informação de atributo de pontos tridimensionais incluídos em dados de nuvem de pontos (s7922); e gerar um fluxo de bits incluindo a informação de atributo codificada e o primeiro parâmetro de quantização (s7923).
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公开(公告)号:SG11202009891QA
公开(公告)日:2020-11-27
申请号:SG11202009891Q
申请日:2019-04-18
Applicant: PANASONIC IP CORP AMERICA
Inventor: WANG CHI , LASANG PONGSAK , HAN CHUNG DEAN , SUGIO TOSHIYASU
IPC: G06T9/00
Abstract: A three-dimensional data encoding method includes: dividing three-dimensional points included in three-dimensional data into three-dimensional point sub-clouds including a first three-dimensional point sub-cloud and a second three-dimensional point sub-cloud (S2631); appending first information indicating a space of the first three-dimensional point sub-cloud to a header of the first three-dimensional point sub-cloud, and appending second information indicating a space of the second three-dimensional point sub-cloud to a header of the second three-dimensional point sub-cloud (S2632); and encoding the first three-dimensional point sub-cloud and the second three-dimensional point sub-cloud so that the first three-dimensional point sub-cloud and the second three-dimensional point sub-cloud are decodable independently of each other (S2633).
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公开(公告)号:AU2019256021A1
公开(公告)日:2020-10-29
申请号:AU2019256021
申请日:2019-04-18
Applicant: PANASONIC IP CORP AMERICA
Inventor: WANG CHI , LASANG PONGSAK , HAN CHUNG DEAN , SUGIO TOSHIYASU
IPC: G06T9/00
Abstract: This three-dimensional data encoding method: divides (S2631) a plurality of three-dimensional points included in three-dimensional data into a plurality of three-dimensional point sub-groups including a first three-dimensional point sub-group and a second three-dimensional point sub-group; attaches (S2632) first spatial information of the first three-dimensional point sub-group to a header of the first three-dimensional point sub-group, and attaches second spatial information of the second three-dimensional point sub-group to a header of the second three-dimensional point sub-group; and then encodes (S2633) the first three-dimensional point sub-group and the second three-dimensional point sub-group such that the same can be independently decoded.
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