JP2021520710A - 簡易化された勾配導出による双方向オプティカルフロー方法 - Google Patents

簡易化された勾配導出による双方向オプティカルフロー方法 Download PDF

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JP2021520710A
JP2021520710A JP2020553659A JP2020553659A JP2021520710A JP 2021520710 A JP2021520710 A JP 2021520710A JP 2020553659 A JP2020553659 A JP 2020553659A JP 2020553659 A JP2020553659 A JP 2020553659A JP 2021520710 A JP2021520710 A JP 2021520710A
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フ、ユーウェン
シウ、シャオユウ
ユー、ヤン
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ヴィド スケール インコーポレイテッド
ヴィド スケール インコーポレイテッド
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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
    • H04N19/134—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
    • H04N19/136—Incoming video signal characteristics or properties
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/223—Analysis of motion using block-matching
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/20—Analysis of motion
    • G06T7/269—Analysis of motion using gradient-based methods
    • 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
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • G06T2207/20021—Dividing image into blocks, subimages or windows
    • 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
    • G06T2207/20048—Transform domain processing
    • 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
    • G06T2207/20182—Noise reduction or smoothing in the temporal domain; Spatio-temporal filtering

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  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
JP2020553659A 2018-04-06 2019-04-05 簡易化された勾配導出による双方向オプティカルフロー方法 Pending JP2021520710A (ja)

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JP2025010575A JP2025066135A (ja) 2018-04-06 2025-01-24 簡易化された勾配導出による双方向オプティカルフロー方法
JP2025194252A JP2026021587A (ja) 2018-04-06 2025-11-13 簡易化された勾配導出による双方向オプティカルフロー方法

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US201862653674P 2018-04-06 2018-04-06
US62/653,674 2018-04-06
PCT/US2019/025933 WO2019195643A1 (en) 2018-04-06 2019-04-05 A bi-directional optical flow method with simplified gradient derivation

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JP2025194252A Pending JP2026021587A (ja) 2018-04-06 2025-11-13 簡易化された勾配導出による双方向オプティカルフロー方法

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EP (1) EP3777159A1 (https=)
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CN114556918B (zh) * 2019-10-12 2025-08-12 北京字节跳动网络技术有限公司 细化视频编解码工具的使用和信令
JP7414980B2 (ja) 2019-10-13 2024-01-16 北京字節跳動網絡技術有限公司 参照ピクチャリサンプリングと映像コーディングツールとの間の相互作用
CN114631321B (zh) 2019-10-18 2024-04-12 北京字节跳动网络技术有限公司 子图片与环路滤波之间的相互影响
CN115280774B (zh) 2019-12-02 2025-08-19 抖音视界有限公司 视觉媒体处理的方法、装置及非暂时性计算机可读存储介质
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JP2021193781A (ja) * 2020-06-08 2021-12-23 Kddi株式会社 画像復号装置、画像復号方法及びプログラム
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CN119484836A (zh) 2025-02-18
CN119484837A (zh) 2025-02-18
US11575933B2 (en) 2023-02-07
US20250280148A1 (en) 2025-09-04
US20210029378A1 (en) 2021-01-28
CN112166608A (zh) 2021-01-01
US20230188748A1 (en) 2023-06-15
JP2026021587A (ja) 2026-02-10
RU2020135518A (ru) 2022-04-29
JP2025066135A (ja) 2025-04-22
WO2019195643A1 (en) 2019-10-10
EP3777159A1 (en) 2021-02-17
CN112166608B (zh) 2024-11-08

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