Interdigital Vc Holdings, Inc.

Thomson Licensing

Interdigital Ce Patent Holdings, Sas

Thomson Licensing S.a.

Interdigital Madison Patent Holdings, Sas

Yannick Olivier

David Touze

Sebastien Lasserre

Julien Ricard

Pierre Andrivon

Celine Guede

Jean-Claude Chevet

Fabrice Leleannec

Dominique Thoreau

Edouard Francois

Philippe Bordes

Franck Hiron

David Gendron

Patrick Lopez

Fabrice Le Leannec

Joan Llach Pinsach

Joan Llach

Catherine Serre

Ronan Boitard

Anne Lorette

Francois Cellier

Franck Galpin

Tangi Poirier

Philippe Guillotel

Philippe Robert

Marie-Jean Colaitis

Xavier Ducloux

Jean-Yves Babonneau

Anita Orhand

Nicolas Caramelli

G&eacute;rard Briand

Kangying Cai

Sébastien Lasserre

Timothee Guillerm

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

A method and apparatus of encoding/decoding attributes of points of a pint cloud are provided. The encoding method subdivides a bounding box bounding the points to be encoded, encodes data representative of attributes of a point by referring to a subdivision to which said point belongs to; and encode data representative of a number of points comprised in each subdivision.

Method and device for encoding/reconstructing attributes of points of a point cloud

At least one embodiment relates to a method comprising obtaining an occupancy information indicating if blocks of a 2D regular grid defined over a projection plane are associated with depth information of an orthogonal projection of at least one point of a point cloud onto said projection plane; embedding said occupancy information in an image storing said depth information; and encoding said image.

Method and apparatus for encoding/decoding a point cloud representing a 3D object

At least one embodiment relates to a method comprising encoding a projection mode associated with an image region of a first depth image, said projection mode indicating if said image region stores either the minimum or the maximum depth value of at least one orthogonally projected 3D point of the point cloud along a same projection direction; and encoding said depth minimum and maximum depth values as a function of said projection mode.

Method for encoding depth values of a set of 3D points once orthogonally projected into at least one image region of a projection plane

At least one embodiment relates to a method for smoothing (filtering) the geometry of a point cloud frame by performing an analysis and filtering of said geometry point cloud in a 2D space, without reconstruction of 3D samples in a 3D space, and by using a flexible filtering operator that, in addition to moving existing points, can also remove points or add new ones.

At least one embodiment relates to the transfer, between two processing units or memories, of a three-channels texture image and at least two image-structured data used for reconstructing the geometry of the point cloud. Such transfer comprises copying the three channels of the three-channels texture image into the three channels of a four-channels image, and storing, in the fourth channel of the four-channels image, a combined information obtained by combining altogether the at least two image-structured data. The four-channel image is then transferred.

Transporting format of a coded point cloud

At least a method and an apparatus are presented for efficiently encoding or decoding video. For example, a 2-D patch of the point cloud is obtained by projecting 3-D points of the point cloud onto a projection plane, the patch having a plurality of pixels. The patch is divided into a plurality of smaller blocks. The number of pixels is determined within each of the plurality of smaller blocks. An updated occupancy map is obtained based on the determined number of pixels within each of the plurality of smaller blocks. A reconstructed point cloud is obtained based on the updated occupancy map, wherein the reconstructed point cloud is a less dense representation of the point cloud.

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

A system and method is provided for generating a tone mapping function to reduce dynamic range of a first image to produce a second image. A luma signal and a plurality of chroma components are determined and a gamut color correction is then performed. An adaptive function is generated by comparing the luma signal and at least one chroma component of the first and second image.

Saturation control for high-dynamic range reconstruction

Method and device for encoding and reconstructing missing points 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 disclosure generally relates to a device and a method of decoding a color picture from a bitstream. It comprises:

Method and device for decoding a color picture

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Thorigne Fouillard, France

Yannick Olivier