公开(公告)号：US10972698B2

公开(公告)日：2021-04-06

申请号：US15964707

申请日：2016-10-20

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Pierre Andrivon ,  Philippe Bordes ,  Edouard Francois

IPC: H04N7/01 ,  H04N1/32

Abstract: Inducing a particular behavior/process among a set of pre-determined behaviors/processes by implicitly signaling the selection of the particular behavior/process though a particular combination of specific values of said set of information data driven the process. Typically, enables re-using parameters already carried with a signal to signal how those parameters are used by a specific process.

公开(公告)号：US12301881B2

公开(公告)日：2025-05-13

申请号：US18434177

申请日：2024-02-06

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Edouard Francois ,  Pierre Andrivon ,  Franck Galpin ,  Fabrice Leleannec ,  Michel Kerdranvat

IPC: H04N19/70 ,  H04N19/103 ,  H04N19/157 ,  H04N19/176 ,  H04N19/503

Abstract: Video coding tools can be controlled by including syntax in a video bitstream that makes better use of video decoding resources. An encoder inserts syntax into a video bitstream to enable a decoder to parse the bitstream and easily control which tools combinations are enabled, which combinations are not permitted, and which tools are activated for various components in a multiple component bitstream, leading to potential parallelization of bitstream decoding.

公开(公告)号：US12081744B2

公开(公告)日：2024-09-03

申请号：US17438057

申请日：2020-03-12

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Pierre Andrivon ,  Christophe Chevance ,  Edouard Francois

IPC: H04N19/117 ,  G06F1/03 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/117 ,  G06F1/03 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82

Abstract: A method and apparatus for performing a forward mapping function or its inverse is implemented through information conveyed in a bitstream to perform mapping. The information can be implemented in a uniform or non-uniform lookup table. A decoder can receive the information and derive the inverse function to be used. In one embodiment, a decoder receives information representative of an inverse mapping function and uses the information to implement an inverse mapping lookup table for intra coded picture portions and can derive a forward mapping lookup table to be used with an inverse mapping lookup table for inter coded picture portions.

公开(公告)号：US12052432B2

公开(公告)日：2024-07-30

申请号：US18222860

申请日：2023-07-17

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Philippe Bordes ,  Franck Hiron ,  Pierre Andrivon ,  Patrick Lopez ,  Philippe Salmon

IPC: H04N19/44 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/573 ,  H04N21/235 ,  H04N21/438

CPC classification number: H04N19/44 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/573 ,  H04N21/2358 ,  H04N21/4384

Abstract: A method for decoding a picture block is disclosed. The decoding method comprises: —decoding (10) at least one stream S_diff into decoded data and into one information for identifying a re-constructed reference picture in a decoder picture buffer; —reconstructing (12) a special reference picture from at least the identified reconstructed reference picture and from the decoded data; —reconstructing (16) the picture block from at least the special reference picture, wherein the at least the special reference picture is not displayed.

公开(公告)号：US11902595B2

公开(公告)日：2024-02-13

申请号：US17860752

申请日：2022-07-08

Applicant: InterDigital VC Holdings, Inc.

Inventor： Pierre Andrivon ,  Patrick Lopez ,  Marie-Jean Colaitis ,  David Touze

IPC: H04N19/98 ,  H04N19/70 ,  H04N19/186 ,  G06T5/00

CPC classification number: H04N19/98 ,  H04N19/70

Abstract: Different implementations are described, particularly implementations for processing a medium dynamic range video signal are presented. In a method for processing such a video signal a medium dynamic range video signal and associated metadata are received, wherein the metadata include data representative of a peak luminance value of the medium dynamic range video signal. In addition, data representative of a peak luminance value of a presentation display are received. It is determined whether the peak luminance value of the medium dynamic range video signal is greater or lower than the peak luminance value of the presentation display. A processor is configured based on the determination, wherein the processor has a first mode to reconstruct a high dynamic range video signal based on a received standard dynamic range video signal and associated metadata, and a second mode to optimize a received high dynamic range video signal for the rendering device. The medium dynamic range video signal is processed by the processor in the first mode if the peak luminance value of the medium dynamic range video signal is smaller than the peak luminance value of the presentation display and in the second mode if the peak luminance value of the medium dynamic range video signal is greater than the peak luminance value of the presentation display.

公开(公告)号：US11750830B2

公开(公告)日：2023-09-05

申请号：US18086554

申请日：2022-12-21

Applicant: InterDigital VC Holdings, Inc.

Inventor： Philippe Bordes ,  Franck Hiron ,  Pierre Andrivon ,  Patrick Lopez ,  Philippe Salmon

IPC: H04N19/44 ,  H04N21/438 ,  H04N21/235 ,  H04N19/573 ,  H04N19/30 ,  H04N19/176 ,  H04N19/50

CPC classification number: H04N19/44 ,  H04N19/176 ,  H04N19/30 ,  H04N19/50 ,  H04N19/573 ,  H04N21/2358 ,  H04N21/4384

Abstract: A method for decoding a picture block is disclosed. The decoding method comprises: —decoding (10) at least one stream S_diff into decoded data and into one information for identifying a reconstructed reference picture in a decoder picture buffer; —reconstructing (12) a special reference picture from at least the identified reconstructed reference picture and from the decoded data; —reconstructing (16) the picture block from at least the special reference picture, wherein the at least the special reference picture is not displayed.

公开(公告)号：US11711569B2

公开(公告)日：2023-07-25

申请号：US15774785

申请日：2016-11-04

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Philippe Bordes ,  Pierre Andrivon ,  Edouard Francois

IPC: H04N21/43 ,  H04N21/81 ,  H04N21/434 ,  H04N21/235

CPC classification number: H04N21/43 ,  H04N21/2353 ,  H04N21/4345 ,  H04N21/8193

Abstract: The present disclosure relates to a method and device for adapting a video content decoded from elementary streams to the characteristics of a display from at least one type of metadata giving information regarding said elementary streams. Such a method comprises:—obtaining (102) an additional information (HDR DESCR.) indicating the presence of one particular type of metadata;—determining if said video content decoded from elementary streams is display-able on said display (11) from said additional information (HDR DESCR.) and the characteristics of the display (EDID); and—if said video content decoded from elementary streams is determined as being displayable, selecting (105) a process from said additional information and the characteristics of the display and adapting (106) the video content according to the selected process.

公开(公告)号：US11553210B2

公开(公告)日：2023-01-10

申请号：US17299863

申请日：2019-12-09

Applicant: INTERDIGITAL VC HOLDINGS, INC.

Inventor： Edouard Francois ,  Pierre Andrivon ,  Franck Galpin ,  Fabrice Leleannec ,  Michel Kerdranvat

IPC: H04N19/70 ,  H04N19/103 ,  H04N19/157 ,  H04N19/176 ,  H04N19/503

Abstract: Video coding tools can be controlled by including syntax in a video bitstream that makes better use of video decoding resources. An encoder inserts syntax into a video bitstream to enable a decoder to parse the bitstream and easily control which tools combinations are enabled, which combinations are not permitted, and which tools are activated for various components in a multiple component bitstream, leading to potential parallelization of bitstream decoding.

公开(公告)号：US20220360757A1

公开(公告)日：2022-11-10

申请号：US17873038

申请日：2022-07-25

Applicant: InterDigital VC Holdings, Inc.

Inventor： Pierre Andrivon ,  Philippe Bordes ,  Emmanuel Jolly

IPC: H04N11/20 ,  H04N11/24 ,  H04N19/70 ,  H04N19/46 ,  H04N19/186

Abstract: A method includes encoding a first message including first parameters for a first color transform that transforms a video signal into a first color-mapped video signal; encoding a second message including second parameters for a second color transform that transforms the video signal into a second color-mapped video signal; and encoding the video signal, the first message, and the second message in a video bitstream. A method includes decoding the video bitstream into the video signal, the first message including the first parameters, and the second message including the second parameters, and performing at least one of the following: displaying the video signal; transforming the video signal into the first color-mapped video signal by applying the first color transform and displaying the first color-mapped video signal; and transforming the video signal into the second color-mapped video signal by applying the second color transform and displaying the second color-mapped video signal.

公开(公告)号：US20240323329A1

公开(公告)日：2024-09-26

申请号：US18680303

申请日：2024-05-31

Applicant: InterDigital VC Holdings, Inc.

Inventor： Pierre Andrivon ,  Philippe Bordes ,  Emmanuel Jolly

IPC: H04N11/20 ,  H04N11/24 ,  H04N19/186 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N11/20 ,  H04N11/24 ,  H04N19/186 ,  H04N19/46 ,  H04N19/70

Abstract: A method includes encoding a first message including first parameters for a first color transform that transforms a video signal into a first color-mapped video signal; encoding a second message including second parameters for a second color transform that transforms the video signal into a second color-mapped video signal; and encoding the video signal, the first message, and the second message in a video bitstream. A method includes decoding the video bitstream into the video signal, the first message including the first parameters, and the second message including the second parameters, and performing at least one of the following: displaying the video signal; transforming the video signal into the first color-mapped video signal by applying the first color transform and displaying the first color-mapped video signal; and transforming the video signal into the second color-mapped video signal by applying the second color transform and displaying the second color-mapped video signal.