CN118235406A - 针对根据亮度预测色度的预测选择下采样滤波器 - Google Patents

针对根据亮度预测色度的预测选择下采样滤波器 Download PDF

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Publication number
CN118235406A
CN118235406A CN202280075374.2A CN202280075374A CN118235406A CN 118235406 A CN118235406 A CN 118235406A CN 202280075374 A CN202280075374 A CN 202280075374A CN 118235406 A CN118235406 A CN 118235406A
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China
Prior art keywords
block
prediction
downsampling
video
blocks
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Pending
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CN202280075374.2A
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English (en)
Chinese (zh)
Inventor
夜静
赵欣
赵亮
刘杉
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Tencent America LLC
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Tencent America LLC
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Publication of CN118235406A publication Critical patent/CN118235406A/zh
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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
    • H04N19/105—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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
CN202280075374.2A 2022-09-02 2022-11-30 针对根据亮度预测色度的预测选择下采样滤波器 Pending CN118235406A (zh)

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 (1)

Publication Number Publication Date
CN118235406A true CN118235406A (zh) 2024-06-21

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CN202280075374.2A Pending CN118235406A (zh) 2022-09-02 2022-11-30 针对根据亮度预测色度的预测选择下采样滤波器

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

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Publication number Publication date
US20240080443A1 (en) 2024-03-07
KR20240051259A (ko) 2024-04-19
EP4581824A1 (en) 2025-07-09
US12407824B2 (en) 2025-09-02
US20250392713A1 (en) 2025-12-25
WO2024049489A1 (en) 2024-03-07
JP2025528984A (ja) 2025-09-04

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