SG10201900582XA - Method and apparatus for intrabc mode with fractional-pel block vector resolution in video coding - Google Patents

Method and apparatus for intrabc mode with fractional-pel block vector resolution in video coding

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Publication number
SG10201900582XA
SG10201900582XA SG10201900582XA SG10201900582XA SG10201900582XA SG 10201900582X A SG10201900582X A SG 10201900582XA SG 10201900582X A SG10201900582X A SG 10201900582XA SG 10201900582X A SG10201900582X A SG 10201900582XA SG 10201900582X A SG10201900582X A SG 10201900582XA
Authority
SG
Singapore
Prior art keywords
fractional
pel
block
block vector
video coding
Prior art date
Application number
SG10201900582XA
Inventor
Shan Liu
Xiaozhong Xu
Original Assignee
Hfi Innovation 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 Hfi Innovation Inc filed Critical Hfi Innovation Inc
Publication of SG10201900582XA publication Critical patent/SG10201900582XA/en

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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
    • H04N19/50—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
    • H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
    • 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
    • H04N19/134—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
    • 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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/169—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
    • H04N19/50—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

Landscapes

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

Abstract

Method and Apparatus for IntraBC Mode with Fractional-Pel Block Vector Resolution in Video Coding A method and apparatus of video coding using IntraBC (Intra Block Copy) mode are disclosed. The system derives a block vector pointing from the current block to a reference block within a reconstructed pixel area of the current picture. If the block vector is at the fractional-pel resolution, the block vector is restricted so that neighboring pixels at integer- pel locations around fractional-pel reference pixels of the reference block for generating the fractional-pel reference pixels of the reference block using an interpolation filter are all available within the reconstructed pixel area. In another embodiment, the unavailable reference pixels for interpolation to generate fractional-pel reference pixels are padded. FIG. 6
SG10201900582XA 2015-03-02 2016-03-02 Method and apparatus for intrabc mode with fractional-pel block vector resolution in video coding SG10201900582XA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201562126983P 2015-03-02 2015-03-02
US201562154373P 2015-04-29 2015-04-29

Publications (1)

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SG10201900582XA true SG10201900582XA (en) 2019-02-27

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SG11201706978TA SG11201706978TA (en) 2015-03-02 2016-03-02 Method and apparatus for intrabc mode with fractional-pel block vector resolution in video coding
SG10201900582XA SG10201900582XA (en) 2015-03-02 2016-03-02 Method and apparatus for intrabc mode with fractional-pel block vector resolution in video coding

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Country Status (5)

Country Link
US (1) US10362331B2 (en)
EP (1) EP3262836B1 (en)
CN (1) CN107409226B (en)
SG (2) SG11201706978TA (en)
WO (1) WO2016138854A1 (en)

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Publication number Publication date
US20180048909A1 (en) 2018-02-15
SG11201706978TA (en) 2017-09-28
WO2016138854A1 (en) 2016-09-09
CN107409226B (en) 2019-11-12
EP3262836B1 (en) 2020-07-29
EP3262836A4 (en) 2018-08-15
US10362331B2 (en) 2019-07-23
CN107409226A (en) 2017-11-28
EP3262836A1 (en) 2018-01-03

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