公开(公告)号：US11830210B2

公开(公告)日：2023-11-28

申请号：US16753787

申请日：2018-10-03

Applicant: InterDigital VC Holdings, Inc.

Inventor： Sebastien Lasserre ,  Julien Ricard ,  Remi Jullian

IPC: G06T15/20 ,  G06T17/00 ,  G06T7/529

CPC classification number: G06T7/529 ,  G06T15/205 ,  G06T17/00 ,  G06T2207/10028

Abstract: A method and device for generating points of a 3D scene from a depth image. To reach that aim, depth information associated with a current pixel is compared with depth information associated with pixels spatially adjacent to the current pixel in the depth image. When the difference of depth between the current pixel and an adjacent pixel is greater than a first value and less than a second value, at least an additional point of said 3D scene is generated, in addition to a current point associated with the current pixel of the depth image, the number of additional points depending on the depth difference.

公开(公告)号：US20220337848A1

公开(公告)日：2022-10-20

申请号：US17608416

申请日：2020-04-28

Applicant: InterDigital VC Holdings, Inc.

Inventor： Edouard Francois ,  Remi Jullian ,  Franck Hiron

IPC: H04N19/30 ,  H04N19/172 ,  H04N19/186 ,  H04N19/70 ,  H04N19/167 ,  H04N19/132

Abstract: Encoding or decoding picture information can involve determining a first scaling factor varying with a first granularity to scale a chroma prediction residual associated with chroma information included in the picture information; determining a second scaling factor varying with a second granularity finer than the first granularity; scaling the chroma prediction residual based on a combination of the first scaling factor and the second scaling factor to provide a scaled chroma prediction residual with the second granularity; and encoding or decoding at least a portion of the picture information based on the scaled chroma prediction residual.