WO2014052731A2 - Cross-plane filtering for chroma signal enhancement in video coding - Google Patents

Cross-plane filtering for chroma signal enhancement in video coding Download PDF

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Publication number
WO2014052731A2
WO2014052731A2 PCT/US2013/062133 US2013062133W WO2014052731A2 WO 2014052731 A2 WO2014052731 A2 WO 2014052731A2 US 2013062133 W US2013062133 W US 2013062133W WO 2014052731 A2 WO2014052731 A2 WO 2014052731A2
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WO
WIPO (PCT)
Prior art keywords
plane
cross
filter
video signal
video
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/US2013/062133
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English (en)
French (fr)
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WO2014052731A3 (en
Inventor
Jie Dong
Yuwen He
Yan Ye
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Vid Scale Inc
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Vid Scale 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 Vid Scale Inc filed Critical Vid Scale Inc
Priority to KR1020167024019A priority Critical patent/KR102028244B1/ko
Priority to EP13774042.9A priority patent/EP2901703A2/en
Priority to EP19214507.6A priority patent/EP3661215A1/en
Priority to KR1020157010964A priority patent/KR101654814B1/ko
Priority to CN201380050776.8A priority patent/CN104769950B/zh
Priority to CN202110601265.7A priority patent/CN113518228B/zh
Priority to JP2015534732A priority patent/JP6175505B2/ja
Publication of WO2014052731A2 publication Critical patent/WO2014052731A2/en
Publication of WO2014052731A3 publication Critical patent/WO2014052731A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • 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
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • 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
    • H04N19/186—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 a colour or a chrominance component
    • 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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

Definitions

  • FIG. 2 is a block diagram illustrating an example block-based video decoder.
  • FIG. 7 is a block diagram illustrating an example of cross-plane filtering.
  • FIG. 10B depicts an example size and support region of a cross-plane filter
  • A. kma plane may be used as guidance to improve the quality of one or both chroma planes.
  • one or more portions of information pertaining to a luma plane may be blended into corresponding chroma planes.
  • the three color planes of an original (e.g., uncoded) video image may be denoted as Y___ . org, Cb_org, and Cr_org, respectively, and the three color planes of a coded version of the original video image may be denoted as Yjree, Cb_rec, and Cr_rec, respectively.
  • Cross-plane filtering coefficients may be signaled, for example in a video bitstream.
  • the example syntax table of FIG. 14 illustrates an example of signaling a set of two dimensional, non-separable, asymmetric cross-plane filter coefficients for a chroma plane (e.g., Cb or Cr).
  • a chroma plane e.g., Cb or Cr.
  • the following may apply to entries in (he example syntax table.
  • the entry mmi_coeff_hori_mimis 1 plus one (+1) may indicate a number of coefficients in a horizontal direction of the cross-plane filter.
  • Cross-plane filtering may be used in single-layer video coding systems, and/or in multi-layer video coding systems.
  • cross-plane filtering may be applied, for example to improve reference pictures (e.g., pictures stored in reference picture stores 164 and/or 264), such that one or more subsequent frames may be better predicted (e.g., with regard to the chroma planes).
  • a multi-pass encoding strategy may be employed.
  • the EL picture may be encoded and the ILP map may be recorded.
  • the determination of whether to use cross-plane filtering may be made, for example in accordance with an MSE calculation that may be limited to ILP blocks marked by the ILP map.
  • the picture may be encoded in accordance with this determination.
  • Such multi-pass encoding may be time-consuming, and may involve greater computational complexity when compared to single-pass encoding.
  • ILP maps of one or more previously coded EL pictures may be used to predict an ILP map of a current EL picture to be coded.
  • the predicted ILP map may be used to locate one or more blocks that may be likely to be used for ILP in coding the current EL picture. Such likely to be used blocks may be referred to as potential ILP blocks.
  • One or more potential ILP blocks may be included in calculating the MSE (e.g., as described above) and/or may be used in determining whether to apply cross-plane filtering, for example based on the calculated MSE.
  • FIG. 21 A is a diagram of an example communications sy stem 2100 in which one or more disclosed embodiments may be implemented.
  • a wireless network e.g., a wireless network comprising one or more components of the communications system 2100
  • bearers that extend beyond the wireless network e.g., beyond a wailed garden associated with the wireless network
  • QoS characteristics may be assigned to bearers that extend beyond the wireless network.
  • CDMA2000 EV-DO Interim Standard 2000 (IS-2000), Interim Standard 95 (IS-95), Interim Standard 856 (IS-856), Global System for Mobile communications (GSM), Enhanced Data rates for GSM Evolution (EDGE), GSM EDGE (GERA ), and the like.
  • IS-2000 Interim Standard 2000
  • IS-95 Interim Standard 95
  • IS-856 Interim Standard 856
  • GSM Global System for Mobile communications
  • EDGE Enhanced Data rates for GSM Evolution
  • GSM EDGE GSM EDGE
  • GSM EDGE GSM EDGE
  • the gateway 2158 may provide the WTRUs 2102a, 2102b, 2102c with access to circuit- switched networks, such as the PSTN 2108, to facilitate communications between the WTRUs 2.102a, 2102b, 2102c and traditional landline communications devices.
  • the gateway 2158 may provide the WTRUs 2102 a, 2102b, 2102c with access to the networks 21 12, which may include other wired or wireless networks thai are owned and/or operated by other service pro viders.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
PCT/US2013/062133 2012-09-28 2013-09-27 Cross-plane filtering for chroma signal enhancement in video coding Ceased WO2014052731A2 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020167024019A KR102028244B1 (ko) 2012-09-28 2013-09-27 비디오 코딩에서 크로마 신호 향상을 위한 교차-평면 필터링
EP13774042.9A EP2901703A2 (en) 2012-09-28 2013-09-27 Cross-plane filtering for chroma signal enhancement in video coding
EP19214507.6A EP3661215A1 (en) 2012-09-28 2013-09-27 Cross-plane filtering for chroma signal enhancement in video coding
KR1020157010964A KR101654814B1 (ko) 2012-09-28 2013-09-27 비디오 코딩에서 크로마 신호 향상을 위한 교차-평면 필터링
CN201380050776.8A CN104769950B (zh) 2012-09-28 2013-09-27 用于视频编码中的色度信号增强的交叉平面滤波
CN202110601265.7A CN113518228B (zh) 2012-09-28 2013-09-27 用于视频编码的方法、用于视频解码的方法及其装置
JP2015534732A JP6175505B2 (ja) 2012-09-28 2013-09-27 ビデオコーディングにおけるクロマ信号強調のためのクロスプレーンフィルタリング

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US201261707682P 2012-09-28 2012-09-28
US61/707,682 2012-09-28
US201361762611P 2013-02-08 2013-02-08
US61/762,611 2013-02-08
US201361778218P 2013-03-12 2013-03-12
US61/778,218 2013-03-12
US201361845792P 2013-07-12 2013-07-12
US61/845,792 2013-07-12

Publications (2)

Publication Number Publication Date
WO2014052731A2 true WO2014052731A2 (en) 2014-04-03
WO2014052731A3 WO2014052731A3 (en) 2014-10-23

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US (5) US10397616B2 (enExample)
EP (2) EP2901703A2 (enExample)
JP (5) JP6175505B2 (enExample)
KR (2) KR101654814B1 (enExample)
CN (3) CN104769950B (enExample)
TW (1) TWI652935B (enExample)
WO (1) WO2014052731A2 (enExample)

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