JP2025528984A - ルマ予測から彩度用のダウンサンプリングフィルタを選択すること - Google Patents

ルマ予測から彩度用のダウンサンプリングフィルタを選択すること

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Publication number
JP2025528984A
JP2025528984A JP2024547773A JP2024547773A JP2025528984A JP 2025528984 A JP2025528984 A JP 2025528984A JP 2024547773 A JP2024547773 A JP 2024547773A JP 2024547773 A JP2024547773 A JP 2024547773A JP 2025528984 A JP2025528984 A JP 2025528984A
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JP
Japan
Prior art keywords
block
prediction
blocks
downsampling
video
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
JP2024547773A
Other languages
English (en)
Japanese (ja)
Other versions
JPWO2024049489A5 (https=
JP2025528984A5 (https=
Inventor
イェ，ジン
ザオ，シン
ザオ，リャン
リウ，シャン
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tencent America LLC
Original Assignee
Tencent America LLC
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 Tencent America LLC filed Critical Tencent America LLC
Publication of JP2025528984A publication Critical patent/JP2025528984A/ja
Publication of JPWO2024049489A5 publication Critical patent/JPWO2024049489A5/ja
Publication of JP2025528984A5 publication Critical patent/JP2025528984A5/ja
Pending legal-status Critical Current

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
    • H04N19/103—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
    • H04N19/103—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
    • H04N19/117—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
    • H04N19/132—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
    • H04N19/17—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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/186—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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2024547773A 2022-09-02 2022-11-30 ルマ予測から彩度用のダウンサンプリングフィルタを選択すること Pending JP2025528984A (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US202263403635P 2022-09-02 2022-09-02
US63/403,635 2022-09-02
US17/992,282 2022-11-22
US17/992,282 US12407824B2 (en) 2022-09-02 2022-11-22 Selecting downsampling filters for chroma from luma prediction
PCT/US2022/080623 WO2024049489A1 (en) 2022-09-02 2022-11-30 Selecting downsampling filters for chroma from luma prediction

Publications (3)

Publication Number Publication Date
JP2025528984A true JP2025528984A (ja) 2025-09-04
JPWO2024049489A5 JPWO2024049489A5 (https=) 2025-12-08
JP2025528984A5 JP2025528984A5 (https=) 2025-12-08

Family

ID=90061722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2024547773A Pending JP2025528984A (ja) 2022-09-02 2022-11-30 ルマ予測から彩度用のダウンサンプリングフィルタを選択すること

Country Status (6)

Country Link
US (2) US12407824B2 (https=)
EP (1) EP4581824A1 (https=)
JP (1) JP2025528984A (https=)
KR (1) KR20240051259A (https=)
CN (1) CN118235406A (https=)
WO (1) WO2024049489A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12452437B1 (en) * 2023-07-19 2025-10-21 Zoom Communications, Inc. Fast parameter search for chroma from luma intra prediction in video coding

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7953152B1 (en) * 2004-06-28 2011-05-31 Google Inc. Video compression and encoding method
GB2460069A (en) * 2008-05-15 2009-11-18 Snell & Wilcox Ltd Sampling conversion between formats in digital image processing
US9693070B2 (en) * 2011-06-24 2017-06-27 Texas Instruments Incorporated Luma-based chroma intra-prediction for video coding
US9307237B2 (en) * 2012-01-19 2016-04-05 Futurewei Technologies, Inc. Reference pixel reduction for intra LM prediction
US10455249B2 (en) * 2015-03-20 2019-10-22 Qualcomm Incorporated Downsampling process for linear model prediction mode
US10715816B2 (en) * 2015-11-11 2020-07-14 Apple Inc. Adaptive chroma downsampling and color space conversion techniques
CN117478883A (zh) * 2018-09-12 2024-01-30 北京字节跳动网络技术有限公司 交叉分量线性模型中的尺寸相关的下采样
US10939118B2 (en) * 2018-10-26 2021-03-02 Mediatek Inc. Luma-based chroma intra-prediction method that utilizes down-sampled luma samples derived from weighting and associated luma-based chroma intra-prediction apparatus
EP3903482A4 (en) * 2019-02-22 2022-06-01 Beijing Bytedance Network Technology Co., Ltd. SELECTING ADJACENT SAMPLES FOR INTRA PREDICTION
WO2023225013A1 (en) * 2022-05-16 2023-11-23 Beijing Dajia Internet Information Technology Co., Ltd. Improved cross-component prediction for video coding
CN119487549A (zh) * 2022-07-04 2025-02-18 字节跳动有限公司 用于视频处理的方法、装置和介质

Also Published As

Publication number Publication date
US20240080443A1 (en) 2024-03-07
KR20240051259A (ko) 2024-04-19
EP4581824A1 (en) 2025-07-09
US12407824B2 (en) 2025-09-02
CN118235406A (zh) 2024-06-21
US20250392713A1 (en) 2025-12-25
WO2024049489A1 (en) 2024-03-07

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