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：US11968349B2

公开(公告)日：2024-04-23

申请号：US17782504

申请日：2020-11-30

Applicant: InterDigital VC Holdings, Inc.

Inventor： Charles Salmon-Legagneur ,  Bertrand Chupeau ,  Julien Fleureau

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

CPC classification number: H04N13/161 ,  H04N13/178 ,  H04N13/194

Abstract: A method for encoding a volumetric video content representative of a 3D scene is disclosed. The method comprises obtaining a reference viewing box and an intermediate viewing box defined within the 3D scene. For the reference viewing bounding box, the volumetric video reference subcontent is encoded as a central image and peripheral patches for parallax. For the intermediate viewing bounding box, the volumetric video intermediate sub-content is encoded as intermediate central patches which are differences between the intermediate central image and the reference central image.

公开(公告)号：US12283021B2

公开(公告)日：2025-04-22

申请号：US17415931

申请日：2019-12-18

Applicant: InterDigital VC Holdings, Inc.

Inventor： Julien Fleureau ,  Bertrand Chupeau ,  Renaud Dore

IPC: G06T3/073 ,  G06T3/40 ,  G06T9/00

Abstract: Methods and devices are provided to encode points of a sphere onto an image by projecting them as a function of an isotropic region guided mapping operator and/or to decode pixels of an image onto a sphere by de-projected them according to the same parametrized mapping operator. A region of interest is determined on the sphere and the angular resolution of pixels of the image is modulated as a function of their distance to the reference pixel corresponding to the center of the region of interest. Chosen angular resolutions and size of the region of interest are associated with the image and encoded in a stream.

公开(公告)号：US12160555B2

公开(公告)日：2024-12-03

申请号：US17629242

申请日：2020-07-14

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Bertrand Chupeau ,  Gérard 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：US20220256134A1

公开(公告)日：2022-08-11

申请号：US17629242

申请日：2020-07-14

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Bertrand Chupeau ,  Gérard Briand ,  Renaud Dore

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

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：US11367247B2

公开(公告)日：2022-06-21

申请号：US16766355

申请日：2018-11-06

Applicant: InterDigital VC Holdings, Inc.

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

IPC: G06T15/08 ,  G06T7/73 ,  G06T17/10 ,  G06T15/04 ,  H04N19/597

Abstract: Encoding/decoding data representative of a 3D representation of a scene according to a range of points of view can involve generating a depth map associated with a part of the 3D representation according to a parameter representative of a two-dimensional parameterization associated with the part and data associated with a point included in the part, wherein the two-dimensional parameterization can be responsive to geometric information associated with the point and to pose information associated with the range of points of view. A texture map associated with the part can be generated according to the parameter and data associated with the point. First information representative of point density of points in a part of the part can be obtained. The depth map, texture map, parameter, and first information can be included in respective syntax elements of a bitstream.

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：US11979546B2

公开(公告)日：2024-05-07

申请号：US17438703

申请日：2020-02-25

Applicant: InterDigital VC Holdings, Inc.

Inventor： Bertrand Chupeau ,  Julien Fleureau ,  Franck Thudor

IPC: H04N13/161 ,  G06T3/00 ,  G06T3/60 ,  G06T5/00 ,  G06T7/194 ,  G06T15/10 ,  H04N13/00 ,  H04N13/122 ,  H04N13/156 ,  H04N19/597

CPC classification number: H04N13/161 ,  G06T3/0093 ,  G06T3/60 ,  G06T5/005 ,  G06T7/194 ,  G06T15/10 ,  H04N13/122 ,  H04N13/156 ,  H04N19/597 ,  G06T2200/04 ,  G06T2207/10021 ,  G06T2207/20021 ,  H04N2013/0077 ,  H04N2013/0092

Abstract: Methods, devices and stream are disclosed for encoding, transporting and decoding a 3D scene prepared to be viewed from the inside of a viewing zone. A central view comprising texture and depth information is encoded by projected points of the 3D scene visible from a central point of view onto an image plane. Patches are generated to encode small parts of the 3D scene not visible from the central point of view. At the rendering, a viewport image is generated for the current point of view. Holes, that is dis-occluded areas, of the viewport are filled using a patch based inpainting algorithm adapted to take the patches, warped according to the rotation and translation between virtual camera used for capturing the patch and the current virtual camera.

公开(公告)号：US11178383B2

公开(公告)日：2021-11-16

申请号：US17043504

申请日：2019-03-27

Applicant: InterDigital VC Holdings, Inc.

Inventor： Julien Fleureau ,  Bertrand Chupeau ,  Thierry Tapie ,  Franck Thudor

IPC: H04N13/275 ,  H04N13/117 ,  H04N13/194 ,  H04N13/161 ,  H04N13/282

Abstract: Methods and device for encoding/decoding data representative of a 3D scene. First data representative of texture of the 3D scene visible from a first viewpoint is encoded into first tracks. The first data is arranged in first tiles of a first frame. Second data representative of depth associated with points of the 3D scene is encoded into second tracks. The second data is arranged in second tiles of a second frame, the total number of second tiles being greater than the total number of first tiles. Instructions to extract at least a part of the first data and second data from at least a part of the at least a first track and at least a second track are further encoded into one or more third tracks.