CL2020001819A1 - Mecanismos de señalización para rangos iguales y otros parámetros de datos para codificación de video - Google Patents

Mecanismos de señalización para rangos iguales y otros parámetros de datos para codificación de video

Info

Publication number
CL2020001819A1
CL2020001819A1 CL2020001819A CL2020001819A CL2020001819A1 CL 2020001819 A1 CL2020001819 A1 CL 2020001819A1 CL 2020001819 A CL2020001819 A CL 2020001819A CL 2020001819 A CL2020001819 A CL 2020001819A CL 2020001819 A1 CL2020001819 A1 CL 2020001819A1
Authority
CL
Chile
Prior art keywords
linear function
values
level linear
dynamic range
parameters
Prior art date
Application number
CL2020001819A
Other languages
English (en)
Inventor
Adarsh Krishnan Ramasubramonian
Dmytro Rusanovskyy
Original Assignee
Qualcomm Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of CL2020001819A1 publication Critical patent/CL2020001819A1/es

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/124—Quantisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
    • H04N19/36—Scalability techniques involving formatting the layers as a function of picture distortion after decoding, e.g. signal-to-noise [SNR] scalability
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Picture Signal Circuits (AREA)

Abstract

El Ajuste de Rango Dinámico se puede utilizar para corregir distorsiones que pueden ocurrir cuando se transforma el rango dinámico de los colores en video; en diversos ejemplos, el Ajuste de Rango Dinámico puede ser ejecutado utilizando una función lineal a nivel de pieza que toma como entrada un rango de valores de color; parámetros que describen la función lineal a nivel de <br /> pieza pueden ser codificados en una corriente de bits, y los parámetros pueden ser utilizados por un proceso de decodificación para reconstruir la función lineal a nivel de pieza; para mejorar la eficiencia de la codificación, se pueden aplicar técnicas a través de las cuales valores redundantes en los parámetros no necesitan ser codificados cuando el rango de valores de entrada para la función lineal a nivel de pieza puede ser dividido en porciones que tienen iguales longitudes; el proceso de decodificación puede derivar los valores omitidos de los valores que son proporcionados, y puede aplicar la función lineal a nivel de pieza a datos de video decodificados para ejecutar Ajuste de Rango Dinámico.
CL2020001819A 2018-01-11 2020-07-08 Mecanismos de señalización para rangos iguales y otros parámetros de datos para codificación de video CL2020001819A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862616383P 2018-01-11 2018-01-11
US16/244,871 US10778979B2 (en) 2018-01-11 2019-01-10 Signaling mechanisms for equal ranges and other DRA parameters for video coding

Publications (1)

Publication Number Publication Date
CL2020001819A1 true CL2020001819A1 (es) 2021-02-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CL2020001819A CL2020001819A1 (es) 2018-01-11 2020-07-08 Mecanismos de señalización para rangos iguales y otros parámetros de datos para codificación de video

Country Status (17)

Country Link
US (1) US10778979B2 (es)
EP (1) EP3738313A1 (es)
JP (1) JP2021510964A (es)
KR (1) KR102277879B1 (es)
CN (1) CN111567049B (es)
AU (1) AU2019208014B2 (es)
BR (1) BR112020013979A2 (es)
CA (1) CA3084154A1 (es)
CL (1) CL2020001819A1 (es)
IL (1) IL275030B2 (es)
MX (1) MX2020007345A (es)
NZ (1) NZ765116A (es)
PH (1) PH12020550801A1 (es)
RU (1) RU2751555C1 (es)
SG (1) SG11202005177YA (es)
TW (1) TWI773868B (es)
WO (1) WO2019140244A1 (es)

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US10728559B2 (en) * 2017-07-07 2020-07-28 Qualcomm Incorporated Precision of computation and signaling of dynamic range adjustment and color remapping information
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CN115699742A (zh) 2020-04-07 2023-02-03 抖音视界有限公司 子图片相关的语法元素的信令通知和推断
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WO2021204251A1 (en) 2020-04-10 2021-10-14 Beijing Bytedance Network Technology Co., Ltd. Use of header syntax elements and adaptation parameter set
CN115868159A (zh) 2020-04-17 2023-03-28 抖音视界有限公司 自适应参数集单元的存在
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KR102454378B1 (ko) 2022-04-18 2022-10-18 주식회사 오디에스 투명 미백 트레이의 제조방법 및 그 방법에 의해 제조된 투명 미백 트레이

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Also Published As

Publication number Publication date
US10778979B2 (en) 2020-09-15
BR112020013979A2 (pt) 2020-12-08
CA3084154A1 (en) 2019-07-18
AU2019208014B2 (en) 2022-02-17
CN111567049A (zh) 2020-08-21
TWI773868B (zh) 2022-08-11
RU2751555C1 (ru) 2021-07-14
AU2019208014A1 (en) 2020-06-25
IL275030B2 (en) 2023-02-01
MX2020007345A (es) 2020-09-09
US20190215517A1 (en) 2019-07-11
WO2019140244A1 (en) 2019-07-18
TW201931856A (zh) 2019-08-01
IL275030B (en) 2022-10-01
NZ765116A (en) 2022-02-25
EP3738313A1 (en) 2020-11-18
SG11202005177YA (en) 2020-07-29
JP2021510964A (ja) 2021-04-30
CN111567049B (zh) 2022-04-29
IL275030A (en) 2020-07-30
PH12020550801A1 (en) 2021-05-17
KR102277879B1 (ko) 2021-07-14
KR20200107965A (ko) 2020-09-16

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