MX2022006190A - Metodo y dispositivo de codificacion/decodificacion de imagenes usando transformacion de color sin perdidas y metodo para transmitir flujo de bits. - Google Patents

Metodo y dispositivo de codificacion/decodificacion de imagenes usando transformacion de color sin perdidas y metodo para transmitir flujo de bits.

Info

Publication number
MX2022006190A
MX2022006190A MX2022006190A MX2022006190A MX2022006190A MX 2022006190 A MX2022006190 A MX 2022006190A MX 2022006190 A MX2022006190 A MX 2022006190A MX 2022006190 A MX2022006190 A MX 2022006190A MX 2022006190 A MX2022006190 A MX 2022006190A
Authority
MX
Mexico
Prior art keywords
image encoding
decoding method
color transform
value
lossless color
Prior art date
Application number
MX2022006190A
Other languages
English (en)
Inventor
Seung Hwan Kim
Jie Zhao
Mehdi Salehifar
Original Assignee
Lg Electronics 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 Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2022006190A publication Critical patent/MX2022006190A/es

Links

Classifications

    • 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
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • 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
    • H04N19/10—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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • 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
    • H04N19/169—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
    • H04N19/17—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 an image region, e.g. an object
    • H04N19/176—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 an image region, e.g. an object the region being a block, e.g. a macroblock
    • 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
    • H04N19/18—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 set of transform coefficients
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)

Abstract

Se proporciona un método y dispositivo de codificación/decodificac ión de imágenes. El método de decodificación de imágenes llevado a cabo por el dispositivo de decodificación de imágenes, de acuerdo con la presente invención, puede comprender los pasos de: determinar una muestra residual de un bloque actual; y restablecer el valor de muestra residual sobre la base de si se aplica una transformación de espacio de color. El paso para restablecer el valor del bloque residual se puede llevar a cabo sobre la base de un valor medio de un valor de muestra residual de croma.
MX2022006190A 2019-11-22 2020-11-20 Metodo y dispositivo de codificacion/decodificacion de imagenes usando transformacion de color sin perdidas y metodo para transmitir flujo de bits. MX2022006190A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962939530P 2019-11-22 2019-11-22
PCT/KR2020/016485 WO2021101317A1 (ko) 2019-11-22 2020-11-20 무손실 색상 변환을 이용한 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법

Publications (1)

Publication Number Publication Date
MX2022006190A true MX2022006190A (es) 2022-09-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022006190A MX2022006190A (es) 2019-11-22 2020-11-20 Metodo y dispositivo de codificacion/decodificacion de imagenes usando transformacion de color sin perdidas y metodo para transmitir flujo de bits.

Country Status (6)

Country Link
US (2) US11575919B2 (es)
KR (1) KR20220080738A (es)
CN (1) CN114930827A (es)
CA (2) CA3162583C (es)
MX (1) MX2022006190A (es)
WO (1) WO2021101317A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021121419A1 (en) 2019-12-19 2021-06-24 Beijing Bytedance Network Technology Co., Ltd. Interaction between adaptive color transform and quantization parameters
CN115211123A (zh) * 2020-01-05 2022-10-18 抖音视界有限公司 视频编解码的通用约束信息
CN115176470A (zh) 2020-01-18 2022-10-11 抖音视界有限公司 图像/视频编解码中的自适应颜色变换
JPWO2021206137A1 (es) * 2020-04-08 2021-10-14

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9451258B2 (en) * 2012-04-03 2016-09-20 Qualcomm Incorporated Chroma slice-level QP offset and deblocking
RU2016115055A (ru) * 2013-09-20 2017-10-25 Вид Скейл, Инк. Системы и способы обеспечения кодирования 3d справочной таблицы для масштабируемости цветовой гаммы
US10171833B2 (en) * 2014-03-04 2019-01-01 Microsoft Technology Licensing, Llc Adaptive switching of color spaces, color sampling rates and/or bit depths
US11070810B2 (en) * 2014-03-14 2021-07-20 Qualcomm Incorporated Modifying bit depths in color-space transform coding
US10142642B2 (en) * 2014-06-04 2018-11-27 Qualcomm Incorporated Block adaptive color-space conversion coding
US9838662B2 (en) * 2014-10-10 2017-12-05 Qualcomm Incorporated Harmonization of cross-component prediction and adaptive color transform in video coding
EP3354019A4 (en) * 2015-09-23 2019-05-22 Telefonaktiebolaget LM Ericsson (publ) DETERMINATION OF QUANTIZATION PARAMETER VALUES
US11381819B2 (en) * 2019-07-05 2022-07-05 Qualcomm Incorporated Chroma delta quantization parameter (QP) in video coding
WO2021037004A1 (en) * 2019-08-23 2021-03-04 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods for performing chroma deblocking for blocks which use joint chroma coding

Also Published As

Publication number Publication date
CN114930827A (zh) 2022-08-19
CA3162583A1 (en) 2021-05-27
US20220345726A1 (en) 2022-10-27
US11575919B2 (en) 2023-02-07
CA3225288A1 (en) 2021-05-27
WO2021101317A1 (ko) 2021-05-27
CA3162583C (en) 2024-02-13
KR20220080738A (ko) 2022-06-14
US20230137603A1 (en) 2023-05-04

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