公开(公告)号：US20250106414A1

公开(公告)日：2025-03-27

申请号：US18975090

申请日：2024-12-10

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu SUGIO ,  Noritaka Iguchi

IPC: H04N19/30 ,  H04N19/184 ,  H04N19/46 ,  H04N19/91

Abstract: A three-dimensional data encoding method of encoding three-dimensional points each having an attribute information item includes: classifying each of the three-dimensional points into any of layers including a first layer and a second layer; and arithmetic-encoding an attribute information item of a current three-dimensional point among the three-dimensional points with reference to a first encoding table when the current three-dimensional point is at the first layer, and with reference to a second encoding table not dependent on the first encoding table when the current three-dimensional point is at the second layer.

公开(公告)号：US12260601B2

公开(公告)日：2025-03-25

申请号：US18643410

申请日：2024-04-23

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu Sugio ,  Noritaka Iguchi

IPC: G06T9/40

Abstract: A three-dimensional data encoding method includes: assigning three-dimensional points to one of layers, based on items of geometry information of the three-dimensional points; searching three-dimensional points surrounding a current three-dimensional point to be encoded, to select, from the three-dimensional points, a three-dimensional point to be referred to when a predicted value of attribute information of the current three-dimensional point is calculated, the current three-dimensional point belonging to a first layer among the layers; and calculating the predicted value of the attribute information of the current three-dimensional point using the three-dimensional point selected. In the searching of the three-dimensional points, a search range for a same layer as the current three-dimensional point is different from a search range for a layer higher than the first layer.

公开(公告)号：US12250368B2

公开(公告)日：2025-03-11

申请号：US18214839

申请日：2023-06-27

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu Sugio ,  Noritaka Iguchi

IPC: H04N19/103 ,  H04N19/136 ,  H04N19/184

Abstract: A three-dimensional data encoding method of encoding three-dimensional points includes: calculating a new predicted value as a predicted value, using attribute information items of one or more second three-dimensional points neighboring a first three-dimensional point, and assigning the predicted value to at least one prediction mode among two or more prediction modes, the new predicted value being used for calculating an attribute information item of the first three-dimensional point; selecting one prediction mode from the two or more prediction modes; calculating a prediction residual which is a difference between the attribute information item of the first three-dimensional point and the predicted value of the one prediction mode selected; and generating a bitstream including the one prediction mode and the prediction residual.

公开(公告)号：US12198392B2

公开(公告)日：2025-01-14

申请号：US18435478

申请日：2024-02-07

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Toshiyasu Sugio

IPC: G06T9/40

Abstract: A three-dimensional data encoding method includes: encoding geometry information of each of three-dimensional points based on one of a first geometry information encoding method of encoding using octree division and a second geometry information encoding method of encoding without using octree division; and generating a bitstream including the geometry information encoded and a geometry information flag indicating whether the encoding was performed based on the first geometry information encoding method or the second geometry information encoding method. In the generating of the bitstream: when the encoding is performed based on the first geometry information encoding method, the bitstream including a parameter set used in octree division is generated; and when the encoding is performed based on the second geometry information encoding method, the bitstream not including the parameter set used for octree division is generated.

公开(公告)号：US12192548B2

公开(公告)日：2025-01-07

申请号：US17669664

申请日：2022-02-11

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Tadamasa Toma ,  Takahiro Nishi ,  Hisaya Katou

IPC: H04N21/242 ,  H04H20/18 ,  H04H60/13 ,  H04N21/43 ,  H04N21/44 ,  H04N21/462 ,  H04N21/61 ,  H04N21/8547

Abstract: According to one aspect of the present disclosure, a reception method in broadcast and broadband cooperation service, the reception method includes: receiving broadcast content transmitted through broadcast; receiving acquisition information through the broadcast, the acquisition information being information used to play back broadband content transmitted through broadband while the broadband content is synchronized with the received broadcast content, the acquisition information being information relating to acquisition of the broadband content; and acquiring the broadband content based on the received acquisition information. Therefore, the broadband content can properly be acquired in response to the reception of the broadcast content.

公开(公告)号：US12167032B2

公开(公告)日：2024-12-10

申请号：US17353148

申请日：2021-06-21

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu Sugio ,  Noritaka Iguchi

IPC: H01L29/94 ,  H04N19/124 ,  H04N19/597

Abstract: A three-dimensional data encoding method includes: calculating coefficient values from pieces of attribute information of three-dimensional points included in point cloud data; generating a second code sequence including first information and second information, the first information indicating a total number of zero coefficient values consecutive in a first code sequence in which the coefficient values are arranged, the second information indicating whether each of the coefficient values is 0, the zero coefficient values being included in the coefficient values and having a value of 0; and generating a bitstream including the second code sequence.

公开(公告)号：US12154299B2

公开(公告)日：2024-11-26

申请号：US17504809

申请日：2021-10-19

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu Sugio ,  Noritaka Iguchi ,  Chung Dean Han ,  Pongsak Lasang

IPC: G06T9/00 ,  H04N19/124 ,  H04N19/14 ,  H04N19/184 ,  H04N19/196 ,  H04N19/30

Abstract: A three-dimensional data encoding method includes: calculating coefficient values from pieces of attribute information of three-dimensional points included in point cloud data; quantizing the coefficient values to generate quantization values; and generating a bitstream including the quantization values. The three-dimensional points corresponding to the coefficient values belong to one layer among one or more layers. Each of a predetermined number of layers among the one or more layers is assigned a quantization parameter for the layer. In the quantizing, (i) when a quantization parameter is assigned to a layer to which each of the coefficient values belongs, the coefficient value is quantized using the quantization parameter, and (ii) when the quantization parameter is not assigned to a layer to which each of the coefficient values belongs, the coefficient value is quantized using a quantization parameter assigned to one layer among the predetermined number of the layers.

公开(公告)号：US20240371045A1

公开(公告)日：2024-11-07

申请号：US18776497

申请日：2024-07-18

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu SUGIO ,  Noritaka Iguchi

IPC: G06T9/00 ,  H04N19/33 ,  H04N19/593

Abstract: A three-dimensional data encoding method includes: selecting, as one or more candidates for calculating a predicted value of attribute information of a first three-dimensional point, one or more three-dimensional points from a plurality of three-dimensional points, the one or more three-dimensional points being closest to the first three-dimensional point; calculating a predicted value using pieces of attribute information of the one or more three-dimensional points selected as the one or more candidates; calculating a prediction residual that is a difference between the attribute information of the first three-dimensional point and the predicted value calculated; and generating a bitstream, based on the prediction residual. In the selecting, when the plurality of three-dimensional points include three-dimensional points equidistant from the first three-dimensional point, the one or more candidates are selected based on a first Morton code of the first three-dimensional point.

公开(公告)号：US12125248B2

公开(公告)日：2024-10-22

申请号：US17386194

申请日：2021-07-27

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Noritaka Iguchi ,  Toshiyasu Sugio

IPC: G06T9/00 ,  H04N13/161 ,  H04N13/271 ,  H04N19/20 ,  H04N19/46 ,  H04N19/597 ,  H04N21/236 ,  H04N21/434 ,  H04N21/81 ,  H04N21/854

CPC classification number: G06T9/00 ,  H04N13/161 ,  G06T9/001 ,  H04N13/271 ,  H04N19/20 ,  H04N19/46 ,  H04N19/597 ,  H04N21/23614 ,  H04N21/4348 ,  H04N21/816 ,  H04N21/85406

Abstract: A three-dimensional data multiplexing method includes: multiplexing pieces of data of a plurality of types including point cloud data to generate an output signal having a file configuration that is predetermined; and storing, in metadata in the file configuration, information indicating a type of each of the pieces of data included in the output signal.

公开(公告)号：US20240323438A1

公开(公告)日：2024-09-26

申请号：US18736882

申请日：2024-06-07

Applicant: Panasonic Intellectual Property Corporation of America

Inventor： Toshiyasu Sugio ,  Noritaka Iguchi

IPC: H04N19/597 ,  H04N19/103 ,  H04N19/136 ,  H04N19/159

CPC classification number: H04N19/597 ,  H04N19/103 ,  H04N19/136 ,  H04N19/159

Abstract: A three-dimensional data encoding method for encoding three-dimensional points having a hierarchical structure, the three-dimensional data encoding method including: setting one prediction mode out of two or more prediction modes each for calculating a predicted value of an item of first geometry information of a first three-dimensional point using one or more items of second geometry information of one or more second three-dimensional points surrounding the first three-dimensional point; calculating a predicted value of the one prediction mode set; calculating a prediction residual that is a difference between the item of first geometry information and the predicted value calculated; and generating a first bitstream including the one prediction mode set and the prediction residual. In the setting, the one prediction mode is set based on a depth of the first three-dimensional point in the hierarchical structure.