公开(公告)号：US12067695B2

公开(公告)日：2024-08-20

申请号：US18132939

申请日：2023-04-10

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Julien Ricard ,  Celine Guede ,  Jean-Claude Chevet ,  David Gendron ,  Yannick Olivier ,  Joan Llach

IPC: G06T3/4007 ,  G06T3/06 ,  G06T9/00

CPC classification number: G06T3/4007 ,  G06T3/06 ,  G06T9/001

Abstract: 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.

公开(公告)号：US12056864B2

公开(公告)日：2024-08-06

申请号：US18221310

申请日：2023-07-12

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Robin Le Naour ,  David Touze ,  Catherine Serre

IPC: G06T5/00 ,  G06T5/50 ,  G06T5/92 ,  H04N19/186 ,  H04N19/85 ,  H04N19/86 ,  H04N19/98

CPC classification number: G06T5/92 ,  G06T5/50 ,  H04N19/186 ,  H04N19/85 ,  H04N19/86 ,  H04N19/98 ,  G06T2207/10024 ,  G06T2207/20208

Abstract: The present disclosure relates to a method and device for obtaining a second image from a first image when the dynamic range of the luminance of the first image is greater than the dynamic range of the luminance of the second image. The disclosure describes deriving at least one component representative of the colors of the second image from the first image, and maximizing at least one derived component according to a maximum value depending on a linear-light luminance component of the first image.

公开(公告)号：US12052418B2

公开(公告)日：2024-07-30

申请号：US17897903

申请日：2022-08-29

Applicant: InterDigital VC Holdings, Inc.

Inventor： Fabrice Leleannec ,  Franck Galpin ,  Fabien Racape ,  Sunil Jaiswal

IPC: H04N19/119 ,  H04N19/102 ,  H04N19/147 ,  H04N19/176 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/119 ,  H04N19/102 ,  H04N19/147 ,  H04N19/176 ,  H04N19/70 ,  H04N19/96

Abstract: A method for encoding a block is disclosed. To this aim, a split mode is determined based on a rate-distortion optimization using a texture-based split prediction set obtained for the block. As an example, the split mode is determined by adapting the texture-based split prediction set according to at least one of a binary or triple split mode non-redundancy constraint or a heuristic-based split mode set pruning. The block is finally encoded using the determined split mode.

公开(公告)号：US20240214557A1

公开(公告)日：2024-06-27

申请号：US18600358

申请日：2024-03-08

Applicant: InterDigital VC Holdings, Inc.

Inventor： Ya CHEN ,  Tangi POIRIER ,  Philippe BORDES ,  Fabrice LELEANNEC ,  Franck GALPIN

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46

Abstract: Described are methods and apparatuses wherein an illumination compensation parameter is determined for a current block of a picture. The illumination compensation parameter is determined from one or more illumination compensation parameters or from one or more reconstructed samples of at least one spatially neighbor block only in the case where said at least one spatially neighbor block belongs to the same local illumination compensation group as the current block, called current local illumination compensation group. Finally, the current block is reconstructed using the determined illumination compensation parameter.

公开(公告)号：US20240212220A1

公开(公告)日：2024-06-27

申请号：US18601904

申请日：2024-03-11

Applicant: InterDigital VC Holdings, Inc.

Inventor： Tatu V. J. Harviainen ,  Louis Kerofsky ,  Ralph Neff

IPC: G06T9/00 ,  G06T17/00

CPC classification number: G06T9/001 ,  G06T9/002 ,  G06T17/00

Abstract: Systems and methods are described for compressing color information in point cloud data. In some embodiments, point cloud data includes point position information and point color information for each of a plurality of points. The point position information is provided to a neural network, and the neural network generates predicted color information (e.g. predicted luma and chroma values) for respective points in the point cloud. A prediction residual is generated to represent the difference between the predicted color information and the input point color position. The point position information (which may be in compressed form) and the prediction residual are encoded in a bitstream. In some embodiments, color hint data is encoded to improve color prediction.

公开(公告)号：US12008154B2

公开(公告)日：2024-06-11

申请号：US18212052

申请日：2023-06-20

Applicant: InterDigital VC Holdings, Inc.

Inventor： Vincent Levesque

IPC: G06F3/01 ,  G06F18/24

CPC classification number: G06F3/011 ,  G06F3/016 ,  G06F3/017 ,  G06F18/24

Abstract: Program actions may be initiated after detection of a predefined gesture by a user with a real-world object. Users may interact with their physical environment in an augmented reality by detecting interactions with real objects using a combination of location and motion detection, material identification using wearable sensors, or both. Based on detected sensor data from user interaction with a real-world object, a predefined gesture may be identified and a program action associated with that target interaction for the real-world object may be executed. In some cases, the user experience may be enhanced by providing haptic feedback in response to tactile gestures and resulting events.

公开(公告)号：US11989855B2

公开(公告)日：2024-05-21

申请号：US16768282

申请日：2018-11-30

Applicant: InterDigital VC Holdings, Inc.

Inventor： Francois Cellier ,  Yannick Olivier ,  Marie-Jean Colaitis ,  David Touze

IPC: G06T5/00 ,  G06T5/50

CPC classification number: G06T5/009 ,  G06T5/50 ,  G06T2207/10024 ,  G06T2207/20024 ,  G06T2207/20208

Abstract: 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.

公开(公告)号：US11949910B2

公开(公告)日：2024-04-02

申请号：US16652547

申请日：2018-09-28

Applicant: InterDigital VC Holdings, Inc.

Inventor： Philippe Bordes ,  Franck Galpin ,  Fabien Racape

IPC: H04N19/577 ,  H04N19/583

CPC classification number: H04N19/577 ,  H04N19/583

Abstract: Methods (1500, 1600) and apparatuses (700, 900, 1700) for video coding and decoding are provided. The method of video encoding (1500) includes determining (1510) a set of parameters for illumination compensation associated with a first motion compensated reference block of a block in a picture of a video based on a function of a set of samples of the first motion compensated reference block and a set of samples of a second motion compensated reference block of the block, processing (1520) a prediction of the block based on the set of parameters, the prediction being associated with the first motion compensated reference block and encoding (1530) the block based on the processed prediction. A bitstream formatted to include encoded data, a computer-readable storage medium and a computer program product are also described.

公开(公告)号：US11936876B2

公开(公告)日：2024-03-19

申请号：US17351649

申请日：2021-06-18

Applicant: InterDigital VC Holdings, Inc.

Inventor： Yunfei Zheng ,  Qian Xu ,  Xiaoan Lu ,  Peng Yin ,  Joel Sole Rojals ,  Adeel Abbas

IPC: H04N19/136 ,  H04N19/11 ,  H04N19/147 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/136 ,  H04N19/11 ,  H04N19/147 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/593 ,  H04N19/70 ,  H04N19/96

Abstract: Methods and apparatus are provided for signaling intra prediction for large blocks for video encoders and decoders. The intra prediction is signaled by selecting a basic coding unit size and assigning a single spatial intra partition type for the basic coding unit size. The single spatial intra partition type is selectable from among a plurality of spatial intra partition types. The at least one large block has a large block size greater than a block size of the basic coding unit. The intra prediction is hierarchical layer intra prediction and is performed for the at least one large block by at least one of splitting from the large block size to the basic coding unit size and merging from the basic coding unit size to the large block size.

公开(公告)号：US11936868B2

公开(公告)日：2024-03-19

申请号：US17287740

申请日：2019-10-21

Applicant: InterDigital VC Holdings, Inc.

Inventor： Philippe De Lagrange ,  Philippe Bordes ,  Edouard Francois

IPC: H04N19/124 ,  H04N19/176 ,  H04N19/186

CPC classification number: H04N19/124 ,  H04N19/176 ,  H04N19/186

Abstract: An image is split into a plurality of blocks of various sizes and a subdivision level counter is associated to each of the blocks. The value of this subdivision level counter for a block is representative of the size of the block and is used to determine the quantization parameter for the block. The value is propagated for each subdivision and incremented according the type of the subdivision. When the image is split, an analysis is done according to the subdivision level counter, a maximal value of subdivision and the type of split, in order to determine the start of a new quantization group and when it is the case, the current position of the partition is propagated to the further split partitions to be stored with these partition and serve in the prediction process when decoding.