公开(公告)号：US12273499B2

公开(公告)日：2025-04-08

申请号：US16647517

申请日：2018-09-11

Applicant: InterDigital VC Holdings, Inc.

Inventor： Renaud Dore ,  Julien Fleureau ,  Bertrand Chupeau ,  Gerard Briand ,  Thierry Tapie ,  Franck Thudor

IPC: H04N13/161 ,  G06T9/00 ,  G06T15/20 ,  H04N13/122 ,  H04N13/15 ,  H04N13/178 ,  H04N19/597

Abstract: A sequence of three-dimension scenes is encoded as a video by an encoder and transmitted to a decoder which retrieves the sequence of 3D scenes. Points of a 3D scene visible from a determined point of view are encoded as a color image in a first track of the stream in order to be decodable independently from other tracks of the stream. The color image is compatible with a three degrees of freedom rendering. Depth information and depth and color of residual points of the scene are encoded in separate tracks of the stream and are decoded only in case the decoder is configured to decode the scene for a volumetric rendering.

公开(公告)号：US12073594B2

公开(公告)日：2024-08-27

申请号：US17260144

申请日：2019-06-24

Applicant: InterDigital VC Holdings, Inc.

Inventor： Julien Fleureau ,  Bertrand Chupeau ,  Gerard Briand ,  Renaud Dore ,  Thierry Tapie ,  Franck Thudor

IPC: G06T9/00 ,  G06T15/20 ,  G06T17/20

CPC classification number: G06T9/001 ,  G06T15/20 ,  G06T17/20

Abstract: A sequence of three-dimension scenes is encoded as a video by an encoder and transmitted to a decoder which retrieves the sequence of 3D scenes. Points of a 3D scene visible from a determined point of view are encoded as a color image in a first track of the stream in order to be decodable independently from other tracks of the stream. The color image is compatible with a three degrees of freedom rendering. Depth information and depth and color of residual points of the scene are encoded in separate tracks of the stream and are decoded only in case the decoder is configured to decode the scene for a volumetric rendering.

公开(公告)号：US11790562B2

公开(公告)日：2023-10-17

申请号：US16962393

申请日：2019-01-14

Applicant: InterDigital VC Holdings, Inc.

Inventor： Julien Fleureau ,  Renaud Dore ,  Franck Thudor

IPC: G06T9/00 ,  G06T3/40 ,  G06T17/20 ,  H04L65/70 ,  H04L65/75

CPC classification number: G06T9/001 ,  G06T3/40 ,  G06T17/20 ,  H04L65/70 ,  H04L65/75

Abstract: Methods and devices are provided to encode and decode a data stream carrying data representative of a three-dimensional scene, the data stream comprising color pictures packed in a color image; depth pictures packed in a depth image; and a set of patch data items comprising de-projection data; data for retrieving a color picture in the color image and geometry data. Two types of geometry data are possible. The first type of data describes how to retrieve a depth picture in the depth image. The second type of data comprises an identifier of a parametric function and a list of parameter values for the identified parametric function.

公开(公告)号：US11064213B2

公开(公告)日：2021-07-13

申请号：US16472761

申请日：2017-12-11

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Julien Fleureau ,  Renaud Dore ,  Thierry Tapie

IPC: H04N19/467 ,  H04N19/44 ,  H04N19/597 ,  H04N19/65 ,  H04N19/70

Abstract: The present disclosure relates to method for embedding key information in an image, the method comprising reserving a range of DMZ values, in a predetermined range of 2N values used for storing useful data in the image, the reserved range being used for storing a key information associated with at least one coordinates in the image, with N>0 and DMZ

公开(公告)号：US11483536B2

公开(公告)日：2022-10-25

申请号：US17259852

申请日：2019-06-21

Applicant: InterDigital VC Holdings, Inc.

Inventor： Julien Fleureau ,  Renaud Dore ,  Charles Salmon-Legagneur ,  Remi Houdaille

IPC: H04N13/194 ,  H04N13/117 ,  H04N13/161 ,  H04N21/218 ,  H04N21/81

Abstract: A method and a device provide for transmitting information representing a viewpoint in a 3D scene represented with a set of volumetric video contents; receiving a first volumetric video content of the set, the first volumetric video content being according to a range of points of view comprising the viewpoint, the first volumetric video content being represented with a set of first patches, each of which corresponds to a 2D parametrization of a first group of points in a 3D part of the 3D scene associated with the first volumetric video content, and at least one first patch refers to an area of a second patch corresponding to a 2D parametrization of a second group of points in another 3D part of the 3D scene associated with a second volumetric video content of the set of volumetric video contents.

公开(公告)号：US10891784B2

公开(公告)日：2021-01-12

申请号：US16477620

申请日：2018-01-08

Applicant: InterDigital VC Holdings, Inc.

Inventor： Renaud Dore ,  Franck Galpin ,  Gerard Briand ,  Julien Fleureau

IPC: G06T17/00 ,  G06T7/50 ,  G06T7/90 ,  H04N19/597

Abstract: Method and device for generating a stream of data representative of a 3D point cloud. The 3D point cloud is partitioned into a plurality of 3D elementary parts. A set of two-dimensional 2D parametrizations is determined, each 2D parametrization representing one 3D part of the point cloud with a set of parameters. Each 3D part is represented as a 2D pixel image. A depth map and a color map are determined as a first patch atlas and a second patch atlas. A data stream is generated by combining and/or coding the parameters of the 2D parametrization, the first patch atlas, the second patch atlas and mapping information that links each 2D parametrization with its associated depth map and color map in respectively the first and second patch atlas.

公开(公告)号：US20250047822A1

公开(公告)日：2025-02-06

申请号：US18924932

申请日：2024-10-23

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Bertrand Chupeau ,  Gerard Briand ,  Renaud Dore

IPC: H04N13/178 ,  H04N13/161 ,  H04N13/194

Abstract: Methods, devices and data stream are provided for signaling and decoding information representative of restrictions of navigation in a volumetric video. The data stream comprises metadata associated to video data representative of the volumetric video. The metadata comprise data representative of a viewing bounding box, data representative of a curvilinear path in the 3D space of said volumetric video; and data representative of at least one viewing direction range associated with a point on the curvilinear path.

公开(公告)号：US11431999B2

公开(公告)日：2022-08-30

申请号：US17316506

申请日：2021-05-10

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Julien Fleureau ,  Renaud Dore ,  Thierry Tapie

IPC: H04N19/467 ,  H04N19/44 ,  H04N19/597 ,  H04N19/65 ,  H04N19/70

Abstract: The present disclosure relates to a method for embedding key information in an image, the method comprising reserving a range of DMZ values, in a predetermined range of 2N values used for storing useful data in the image, the reserved range being used for storing a key information associated with at least one coordinates in the image, with N>0 and DMZ

公开(公告)号：US12143633B2

公开(公告)日：2024-11-12

申请号：US17440151

申请日：2020-03-17

Applicant: InterDigital VC Holdings, Inc.

Inventor： Julien Fleureau ,  Renaud Dore ,  Franck Thudor

IPC: H04N19/597 ,  H04N19/124 ,  H04N19/162 ,  H04N19/184 ,  H04N19/70

Abstract: Methods, device and data stream format are disclosed in the present document for the encoding, the formatting and the decoding of depth information representative of a 3D scene. Compression and decompression of quantized values by a video codec leads to a value error. This error on values is particularly sensitive for depth encoding. The present invention proposes to encode and decode depth with a quantization function that minimize an angle error when a value error on quantized depth creates a location delta between the projected point and the de-projected point. The inverse of such a quantization function has to be encoded in metadata associated with the 3D scene, for example as a LUT, to be retrieved at the decoding, as such functions are not tractable.

公开(公告)号：US11375235B2

公开(公告)日：2022-06-28

申请号：US16962157

申请日：2019-01-04

Applicant: InterDigital VC Holdings, Inc.

Inventor： Julien Fleureau ,  Renaud Dore ,  Thierry Tapie

IPC: H04N19/597 ,  H04N19/70

Abstract: Methods and devices are provided to encode and decode a data stream carrying data representative of a three-dimensional scene, the data stream comprising color pictures packed in a color image; depth pictures packed in a depth image; and a set of patch data items comprising de-projection data; data for retrieving a color picture in the color image and geometry data. Two types of geometry data are possible. The first type of data describes how to retrieve a depth picture in the depth image. The second type of data comprises an identifier of a 3D mesh. Vertex coordinates and faces of this mesh are used to retrieve the location of points in the de-projected scene.