IN2014MN01927A - - Google Patents

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Publication number
IN2014MN01927A
IN2014MN01927A IN1927MUN2014A IN2014MN01927A IN 2014MN01927 A IN2014MN01927 A IN 2014MN01927A IN 1927MUN2014 A IN1927MUN2014 A IN 1927MUN2014A IN 2014MN01927 A IN2014MN01927 A IN 2014MN01927A
Authority
IN
India
Prior art keywords
equivalent
common edge
deblock
video coder
qps
Prior art date
Application number
Inventor
Auwera Geert Van Der
Rajan Laxman Joshi
Marta Karczewicz
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of IN2014MN01927A publication Critical patent/IN2014MN01927A/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
    • H04N19/10—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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • 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
    • 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
    • H04N19/85—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

Landscapes

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

Abstract

A device may include a video coder configured to determine an equivalent quantization parameter (QP) for a decoded block of video data using a quantization matrix for the decoded block of video data determine deblocking parameters based on the determined equivalent QP and deblock an edge of the decoded block based on the determined deblocking parameters. In particular the video coder may determine equivalent QPs for two neighboring blocks defining a common edge and deblock the common edge based on the equivalent QPs. The video coder may determine deblocking parameters such as ß and tc values based on the equivalent QPs. The video coder may then deblock the common edge based on the deblocking parameters e.g. determine whether to deblock the common edge determine whether to apply a strong or a weak filter to the common edge and determine a width (in number of pixels) for a weak filter.
IN1927MUN2014 2012-04-03 2013-03-12 IN2014MN01927A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201261619820P 2012-04-03 2012-04-03
US201261637542P 2012-04-24 2012-04-24
US13/793,942 US9756327B2 (en) 2012-04-03 2013-03-11 Quantization matrix and deblocking filter adjustments for video coding
PCT/US2013/030466 WO2013151684A1 (en) 2012-04-03 2013-03-12 Quantization matrix and deblocking filter adjustments for video coding

Publications (1)

Publication Number Publication Date
IN2014MN01927A true IN2014MN01927A (en) 2015-07-10

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
IN1927MUN2014 IN2014MN01927A (en) 2012-04-03 2013-03-12

Country Status (5)

Country Link
US (1) US9756327B2 (en)
EP (1) EP2834976A1 (en)
CN (1) CN104303501B (en)
IN (1) IN2014MN01927A (en)
WO (1) WO2013151684A1 (en)

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Also Published As

Publication number Publication date
WO2013151684A1 (en) 2013-10-10
US9756327B2 (en) 2017-09-05
US20130259120A1 (en) 2013-10-03
CN104303501B (en) 2017-12-05
CN104303501A (en) 2015-01-21
EP2834976A1 (en) 2015-02-11

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