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PH12022550055A1 - Sample identification for intra block copy in video coding - Google Patents

Sample identification for intra block copy in video coding

Info

Publication number
PH12022550055A1
PH12022550055A1 PH1/2022/550055A PH12022550055A PH12022550055A1 PH 12022550055 A1 PH12022550055 A1 PH 12022550055A1 PH 12022550055 A PH12022550055 A PH 12022550055A PH 12022550055 A1 PH12022550055 A1 PH 12022550055A1
Authority
PH
Philippines
Prior art keywords
video coding
block copy
intra block
sample identification
derivation
Prior art date
Application number
PH1/2022/550055A
Inventor
Hongbin Liu
Yue Wang
Jizheng Xu
Kai Zhang
Li Zhang
Original Assignee
Beijing Bytedance Network Tech Co Ltd
Bytedance 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 Beijing Bytedance Network Tech Co Ltd, Bytedance Inc filed Critical Beijing Bytedance Network Tech Co Ltd
Publication of PH12022550055A1 publication Critical patent/PH12022550055A1/en

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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
    • 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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

A method of video processing includes maintaining, for a conversion between a current video block of a current picture of a visual media data and a bitstream representation of the visual media data, a buffer comprising reference samples from the current picture for a derivation of a prediction block of the current video block. One or more reference samples in the buffer that are marked unavailable for the derivation have values outside of a pixel value range.
PH1/2022/550055A 2019-07-10 2020-07-09 Sample identification for intra block copy in video coding PH12022550055A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN2019095504 2019-07-10
CN2019095656 2019-07-11
CN2019095913 2019-07-13
CN2019096048 2019-07-15
PCT/CN2020/100992 WO2021004495A1 (en) 2019-07-10 2020-07-09 Sample identification for intra block copy in video coding

Publications (1)

Publication Number Publication Date
PH12022550055A1 true PH12022550055A1 (en) 2023-04-12

Family

ID=74114373

Family Applications (1)

Application Number Title Priority Date Filing Date
PH1/2022/550055A PH12022550055A1 (en) 2019-07-10 2020-07-09 Sample identification for intra block copy in video coding

Country Status (2)

Country Link
PH (1) PH12022550055A1 (en)
WO (2) WO2021004495A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113396592B (en) 2019-02-02 2023-11-14 北京字节跳动网络技术有限公司 Buffer management for intra block copying in video codec
PH12021551777A1 (en) 2019-02-02 2022-05-23 Beijing Bytedance Network Tech Co Ltd Buffer management for intra block copy in video coding
WO2020177661A1 (en) 2019-03-01 2020-09-10 Beijing Bytedance Network Technology Co., Ltd. Order-based updating for intra block copy in video coding
JP7405861B2 (en) 2019-03-01 2023-12-26 北京字節跳動網絡技術有限公司 Direction-based prediction for intra block copy in video coding
CN117640927A (en) 2019-03-04 2024-03-01 北京字节跳动网络技术有限公司 Implementation Aspects in Intra-Block Replication in Video Codecs
CN117395398A (en) 2019-07-10 2024-01-12 北京字节跳动网络技术有限公司 Sample identification for intra block copying in video codecs

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102595118B (en) * 2011-01-14 2015-04-08 华为技术有限公司 A prediction method and predictor in encoding and decoding
US9560358B2 (en) * 2013-07-22 2017-01-31 Qualcomm Incorporated Device and method for scalable coding of video information
US9503715B2 (en) * 2013-08-30 2016-11-22 Qualcomm Incorporated Constrained intra prediction in video coding
AU2013228045A1 (en) * 2013-09-13 2015-04-02 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding video data
WO2015082763A1 (en) * 2013-12-02 2015-06-11 Nokia Technologies Oy Video encoding and decoding
US20160227222A1 (en) * 2015-02-02 2016-08-04 Mediatek Inc. Multi-Standard Video Decoder with Novel Intra Prediction Decoding
CN107646195B (en) * 2015-06-08 2022-06-24 Vid拓展公司 Intra block copy mode for screen content coding

Also Published As

Publication number Publication date
WO2021004495A1 (en) 2021-01-14
WO2021004496A1 (en) 2021-01-14

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