CA3232995A1 - Improving the angle discretization in decoder side intra mode derivation - Google Patents

Improving the angle discretization in decoder side intra mode derivation Download PDF

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Publication number
CA3232995A1
CA3232995A1 CA3232995A CA3232995A CA3232995A1 CA 3232995 A1 CA3232995 A1 CA 3232995A1 CA 3232995 A CA3232995 A CA 3232995A CA 3232995 A CA3232995 A CA 3232995A CA 3232995 A1 CA3232995 A1 CA 3232995A1
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CA
Canada
Prior art keywords
current video
video block
intra prediction
gradients
block
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CA3232995A
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English (en)
French (fr)
Inventor
Thierry DUMAS
Fabrice Le Leannec
Franck Galpin
Philippe Bordes
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InterDigital CE Patent Holdings SAS
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InterDigital CE Patent Holdings SAS
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.)
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Publication date
Application filed by InterDigital CE Patent Holdings SAS filed Critical InterDigital CE Patent Holdings SAS
Publication of CA3232995A1 publication Critical patent/CA3232995A1/en
Pending legal-status Critical Current

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    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • 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
    • H04N19/169—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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CA3232995A 2021-09-28 2022-09-16 Improving the angle discretization in decoder side intra mode derivation Pending CA3232995A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP21306345 2021-09-28
EP21306345.6 2021-09-28
PCT/EP2022/075843 WO2023052156A1 (en) 2021-09-28 2022-09-16 Improving the angle discretization in decoder side intra mode derivation

Publications (1)

Publication Number Publication Date
CA3232995A1 true CA3232995A1 (en) 2023-04-06

Family

ID=78371988

Family Applications (1)

Application Number Title Priority Date Filing Date
CA3232995A Pending CA3232995A1 (en) 2021-09-28 2022-09-16 Improving the angle discretization in decoder side intra mode derivation

Country Status (8)

Country Link
US (2) US12407821B2 (enExample)
EP (1) EP4409883A1 (enExample)
JP (1) JP2024537625A (enExample)
KR (1) KR20240088795A (enExample)
CN (1) CN118120231A (enExample)
CA (1) CA3232995A1 (enExample)
WO (1) WO2023052156A1 (enExample)
ZA (1) ZA202402343B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118451707A (zh) * 2021-12-29 2024-08-06 Lg电子株式会社 图像编码/解码方法和装置及存储比特流的记录介质
EP4496307A4 (en) * 2022-03-15 2026-03-04 Kt Corp METHOD AND DEVICE FOR IMAGE ENCODING/DECODING
WO2025026313A1 (en) * 2023-08-01 2025-02-06 Mediatek Inc. Methods and apparatus of decoder-side intra mode derivation and prediction with influence of histogram of gradients from the neighbourhood in video coding
WO2026007136A1 (en) * 2024-07-05 2026-01-08 Shenzhen Tcl New Technology Co., Ltd. Intra-prediction method for video coding involving template gradients and apparatus incorporating the same
WO2026001801A2 (zh) * 2025-06-18 2026-01-02 深圳传音控股股份有限公司 处理方法、处理设备及存储介质
CN120583237A (zh) * 2025-06-19 2025-09-02 深圳传音控股股份有限公司 图像处理方法、处理设备及存储介质

Also Published As

Publication number Publication date
US12407821B2 (en) 2025-09-02
EP4409883A1 (en) 2024-08-07
JP2024537625A (ja) 2024-10-16
CN118120231A (zh) 2024-05-31
ZA202402343B (en) 2025-12-17
US20240380885A1 (en) 2024-11-14
WO2023052156A1 (en) 2023-04-06
US20260039807A1 (en) 2026-02-05
KR20240088795A (ko) 2024-06-20

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