Interdigital Vc Holdings, Inc.

Interdigital Ce Patent Holdings, Sas

Interdigital Madison Patent Holdings, Sas

David Gendron

Yannick Olivier

Celine Guede

Jean-Claude Chevet

Julien Ricard

Pierre Andrivon

Joan Llach

Jurgen Stauder

Philippe Robert

Joan Llach Pinsach

Céline Guede

Described are methods and devices for adding at least one 3D sample to a point cloud frame and for assigning a color-coding mode to said at least one 3D sample, said color-coding mode indicating if color information associated with said at least one 3D sample is explicitly encoded in a bitstream or if said color information is implicit.

Processing a point cloud

At least one embodiment relates to provides a method of encoding/decoding attribute of orthogonally projected 3D samples and in-between 3D samples in which an information indicates whether at least one first attribute patch of 2D samples obtained by encoding the attribute of said at least one orthogonally projected 3D samples according to a first attribute coding mode, and at least one second attribute patch of 2D samples of an image obtained by encoding the attribute of at least one in-between 3D sample, are stored in separate images.

Encoding and decoding a point cloud using patches for in-between samples

The present embodiments relate to a method and device. The method comprises obtaining at least one first point from at least one point of a point cloud by projecting said point of the point cloud onto a projection plane and obtaining at least one other point of the point cloud determined according to said at least one first point; determining and encoding at least one interpolation coding mode for said at least one first point based on at least one reconstructed point obtained from said at least one first point and at least one interpolation point defined by said at least one interpolation coding mode to approximate said at least one other point of the point cloud; and signaling said at least interpolation coding mode as values of image data.

Method and device for encoding/decoding the geometry of a point cloud

At least one embodiment relates to a method for adding at least one 3D sample to a point cloud frame and for assigning a color-coding mode to said at least one 3D sample, said color-coding mode indicating if color information associated with said at least one 3D sample is explicitly encoded in a bitstream or if said color information is implicit.

The present invention relates to a method for estimating cast shadow regions and highlight regions in a scene, said scene being represented by a low dynamic range image, called LDR image, and a high dynamic range, called HDR image, said method comprising the steps of: &#x2014;computing (S) a detail map, called LDR detail map, of the LDR image, said LDR detail map associating a detail level to each pixel of the LDR image, &#x2014;computing (S) a detail map, called HDR detail map, of the HDR image, said HDR detail map associating a detail level to each pixel of the HDR image, and &#x2014;detecting (S) regions of the scene where the detail level in the HDR detail map is greater than the detail level in the LDR detail map, said detected regions corresponding to cast shadow regions or highlights region of the scene.

Growing community of inventors

Chevaigne, France

David Gendron