WO2009089373A3 - Video coding with compression of filter coefficients depending on horizontal and vertical symmetry of the filter tap matrix and the position of a filter tap relative to the central tap - Google Patents

Video coding with compression of filter coefficients depending on horizontal and vertical symmetry of the filter tap matrix and the position of a filter tap relative to the central tap Download PDF

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Publication number
WO2009089373A3
WO2009089373A3 PCT/US2009/030468 US2009030468W WO2009089373A3 WO 2009089373 A3 WO2009089373 A3 WO 2009089373A3 US 2009030468 W US2009030468 W US 2009030468W WO 2009089373 A3 WO2009089373 A3 WO 2009089373A3
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WO
WIPO (PCT)
Prior art keywords
filter coefficients
filter
tap
compression
horizontal
Prior art date
Application number
PCT/US2009/030468
Other languages
French (fr)
Other versions
WO2009089373A2 (en
Inventor
Marta Karczewicz
Yan Ye
Original Assignee
Qualcomm Incorporated
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 Qualcomm Incorporated filed Critical Qualcomm Incorporated
Priority to KR1020107017559A priority Critical patent/KR101168843B1/en
Priority to EP09701061A priority patent/EP2238763A2/en
Priority to CA2710337A priority patent/CA2710337A1/en
Priority to JP2010542349A priority patent/JP2011523235A/en
Priority to RU2010133232/07A priority patent/RU2482616C2/en
Priority to BRPI0907210-1A priority patent/BRPI0907210A2/en
Priority to CN2009801018476A priority patent/CN101919253A/en
Publication of WO2009089373A2 publication Critical patent/WO2009089373A2/en
Publication of WO2009089373A3 publication Critical patent/WO2009089373A3/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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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
    • H04N19/134—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
    • 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
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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
    • 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

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

Abstract

This disclosure recognizes and exploits the fact that some of the filter coefficients defined at the encoder may possess symmetry relative to other filter coefficients. Accordingly, this disclosure describes techniques in which a first set of the filter coefficients are used to predictively encode a second set of the filter coefficients, thereby exploiting any symmetry between filter coefficients. Rather than communicate all of the filter coefficients to the decoding device, the encoding device may communicate the first set of filter coefficients and difference values associated with the second set of filter coefficients. Using this information, the decoder may be able to reconstruct all of the filter coefficients. In some cases, if exact symmetry is imposed, the need to send the difference values may be eliminated and the decoder may be able to derive the second set of filter coefficients from the first set of filter coefficients.
PCT/US2009/030468 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry WO2009089373A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020107017559A KR101168843B1 (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry
EP09701061A EP2238763A2 (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry
CA2710337A CA2710337A1 (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry
JP2010542349A JP2011523235A (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal symmetry and vertical symmetry
RU2010133232/07A RU2482616C2 (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry
BRPI0907210-1A BRPI0907210A2 (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry
CN2009801018476A CN101919253A (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US1983108P 2008-01-08 2008-01-08
US61/019,831 2008-01-08
US12/348,752 US8638852B2 (en) 2008-01-08 2009-01-05 Video coding of filter coefficients based on horizontal and vertical symmetry
US12/348,752 2009-01-05

Publications (2)

Publication Number Publication Date
WO2009089373A2 WO2009089373A2 (en) 2009-07-16
WO2009089373A3 true WO2009089373A3 (en) 2011-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2009/030468 WO2009089373A2 (en) 2008-01-08 2009-01-08 Video coding of filter coefficients based on horizontal and vertical symmetry

Country Status (10)

Country Link
US (1) US8638852B2 (en)
EP (1) EP2238763A2 (en)
JP (1) JP2011523235A (en)
KR (1) KR101168843B1 (en)
CN (1) CN101919253A (en)
BR (1) BRPI0907210A2 (en)
CA (1) CA2710337A1 (en)
RU (1) RU2482616C2 (en)
TW (1) TW200943954A (en)
WO (1) WO2009089373A2 (en)

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US9247265B2 (en) * 2010-09-01 2016-01-26 Qualcomm Incorporated Multi-input adaptive filter based on combination of sum-modified Laplacian filter indexing and quadtree partitioning
US9819966B2 (en) 2010-09-01 2017-11-14 Qualcomm Incorporated Filter description signaling for multi-filter adaptive filtering
US9462280B2 (en) 2010-12-21 2016-10-04 Intel Corporation Content adaptive quality restoration filtering for high efficiency video coding
CN103392338A (en) 2011-01-03 2013-11-13 联发科技股份有限公司 Method of filter-unit based in-loop filtering
CN106162186B (en) * 2011-01-03 2020-06-23 寰发股份有限公司 Loop filtering method based on filtering unit
WO2012137890A1 (en) * 2011-04-05 2012-10-11 シャープ株式会社 Image filter apparatus, decoder apparatus, encoder apparatus, and data structure
US9445093B2 (en) 2011-06-29 2016-09-13 Qualcomm Incorporated Multiple zone scanning order for video coding
US9485521B2 (en) 2011-09-19 2016-11-01 Lg Electronics Inc. Encoding and decoding image using sample adaptive offset with start band indicator
EP2783350A4 (en) * 2011-11-25 2016-06-22 Thomson Licensing Methods and apparatus for reflective symmetry based 3d model compression
WO2013104713A1 (en) * 2012-01-13 2013-07-18 Thomson Licensing Method and device for coding an image block, corresponding method and decoding device
US9445088B2 (en) * 2012-04-09 2016-09-13 Qualcomm Incorporated LCU-based adaptive loop filtering for video coding
EP2804375A1 (en) 2013-02-22 2014-11-19 Thomson Licensing Coding and decoding methods of a picture block, corresponding devices and data stream
CN110622511B (en) 2017-04-13 2022-04-15 Lg 电子株式会社 Image encoding/decoding method and apparatus thereof
CN108810552B (en) * 2017-04-28 2021-11-09 华为技术有限公司 Image prediction method and related product
US10250416B2 (en) * 2017-05-17 2019-04-02 MMRFIC Technology Pvt. Ltd. Recursive difference filter realization of digital filters
JP2018029389A (en) * 2017-10-26 2018-02-22 ソニー株式会社 Image processing apparatus, method, and program
US20210266535A1 (en) * 2018-04-11 2021-08-26 Sony Corporation Data processing apparatus and data processing method

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Also Published As

Publication number Publication date
RU2482616C2 (en) 2013-05-20
KR101168843B1 (en) 2012-07-26
CA2710337A1 (en) 2009-07-16
RU2010133232A (en) 2012-02-20
US8638852B2 (en) 2014-01-28
KR20100101693A (en) 2010-09-17
CN101919253A (en) 2010-12-15
TW200943954A (en) 2009-10-16
JP2011523235A (en) 2011-08-04
BRPI0907210A2 (en) 2015-07-14
WO2009089373A2 (en) 2009-07-16
US20090175336A1 (en) 2009-07-09
EP2238763A2 (en) 2010-10-13

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