CA2406459A1 - Enhanced temporal and resolution layering in advanced television - Google Patents

Enhanced temporal and resolution layering in advanced television Download PDF

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Publication number
CA2406459A1
CA2406459A1 CA002406459A CA2406459A CA2406459A1 CA 2406459 A1 CA2406459 A1 CA 2406459A1 CA 002406459 A CA002406459 A CA 002406459A CA 2406459 A CA2406459 A CA 2406459A CA 2406459 A1 CA2406459 A1 CA 2406459A1
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image
compression
enhancements
tools
mpeg
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CA002406459A
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French (fr)
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CA2406459C (en
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Gary A. Demos
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Dolby Laboratories Licensing Corp
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Priority claimed from US09/545,233 external-priority patent/US6728317B1/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • 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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • 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
    • H04N19/39—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability involving multiple description coding [MDC], i.e. with separate layers being structured as independently decodable descriptions of input picture data
    • 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
    • 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
    • H04N19/50—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
    • H04N19/55—Motion estimation with spatial constraints, e.g. at image or region borders
    • 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
    • H04N19/56—Motion estimation with initialisation of the vector search, e.g. estimating a good candidate to initiate a search
    • 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
    • H04N19/567—Motion estimation based on rate distortion criteria
    • 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
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • 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
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0112—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level one of the standards corresponding to a cinematograph film standard
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H04N7/012—Conversion between an interlaced and a progressive signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0127—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter
    • H04N7/0132—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level by changing the field or frame frequency of the incoming video signal, e.g. frame rate converter the field or frame frequency of the incoming video signal being multiplied by a positive integer, e.g. for flicker reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/144—Movement detection
    • H04N5/145—Movement estimation

Landscapes

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

Abstract

A method and apparatus for image compression using temporal and resolution layering of compressed image frames (Figs. 8).
In particular, layered compression (Fig. 8, items 81, 85, and 86) allows a form of modularized decomposition of an image that supports flexible application of a variety of image enhancement techniques (Fig. 2). Further, the invention provides a number of enhancements to handle a variety of video quality and compression problems (Fig. 7). Most of the enhancements are preferably embodied as a set of tools which can be applied to the tasks of enhancing image (Fig. 8.,item 82, 86) and compressing such images. The tools can be combined by a content developer in various ways, as desired, to optimize the visual quality and compression efficiency of a compressed data stream. Such tools include improved image filtering techniques, motion vector representation and determination, de-interlacing and noise reduction enhancements, motion analysis, imaging device characterization and correction, an enhanced 3-2 pulldown system (Fig. 1), frame rate methods for production, a modular bit rate technique, a multi-layer DCT structure (Fig. 20), variable length coding optimization, an augmentation system for MPEG-2 and MPEG-4, and guide vectors for the spatial enhancement layer (Fig.8, item 87).
CA002406459A 2000-04-07 2001-04-06 Enhanced temporal and resolution layering in advanced television Expired - Lifetime CA2406459C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/545,233 US6728317B1 (en) 1996-01-30 2000-04-07 Moving image compression quality enhancement using displacement filters with negative lobes
US09/545,233 2000-04-07
PCT/US2001/011204 WO2001077871A1 (en) 2000-04-07 2001-04-06 Enhanced temporal and resolution layering in advanced television

Publications (2)

Publication Number Publication Date
CA2406459A1 true CA2406459A1 (en) 2001-10-18
CA2406459C CA2406459C (en) 2006-06-06

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CA002406459A Expired - Lifetime CA2406459C (en) 2000-04-07 2001-04-06 Enhanced temporal and resolution layering in advanced television

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EP (1) EP1279111A4 (en)
JP (1) JP4352105B2 (en)
AU (1) AU2001251386A1 (en)
CA (1) CA2406459C (en)
WO (1) WO2001077871A1 (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6957350B1 (en) 1996-01-30 2005-10-18 Dolby Laboratories Licensing Corporation Encrypted and watermarked temporal and resolution layering in advanced television
US7266150B2 (en) 2001-07-11 2007-09-04 Dolby Laboratories, Inc. Interpolation of video compression frames
JP3596519B2 (en) * 2001-12-13 2004-12-02 ソニー株式会社 Image signal processing apparatus and method
JP4031390B2 (en) * 2002-04-17 2008-01-09 松下電器産業株式会社 Image conversion apparatus and image conversion method
JP4031389B2 (en) * 2002-04-17 2008-01-09 松下電器産業株式会社 Image conversion apparatus and image conversion method
US7009655B2 (en) 2002-07-23 2006-03-07 Mediostream, Inc. Method and system for direct recording of video information onto a disk medium
EP1568221B1 (en) 2002-12-03 2012-04-04 Thomson Licensing Media for standard-definition and high-definition video formats
US7899113B2 (en) 2003-04-10 2011-03-01 Thomson Licensing Technique for simulating film grain on encoded video
PL378931A1 (en) * 2003-05-15 2006-06-12 Thomson Licensing Method and apparatus for representing image granularity by one or more parameters
EP1513344A4 (en) * 2003-05-16 2009-10-28 Sony Corp Motion correction device and method
KR100612849B1 (en) 2003-07-18 2006-08-14 삼성전자주식회사 Apparatus and method for encoding and decoding image
DE602004010683T2 (en) 2003-08-29 2009-01-02 Thomson Licensing METHOD AND DEVICE FOR MODELING FILM GATE PATTERNS IN THE FREQUENCY RANGE
EP1511320A1 (en) * 2003-09-01 2005-03-02 Matsushita Electric Industrial Co., Ltd. Film grain encoding
AU2004306091B2 (en) 2003-09-23 2010-08-12 Interdigital Vc Holdings, Inc. Technique for simulating film grain using frequency filtering
BRPI0414641B1 (en) 2003-09-23 2019-01-08 Thomson Licensing method for simulating film granulation by mosaic composition of precomputed samples
CN1868215B (en) 2003-10-14 2012-10-03 汤姆森特许公司 Technique for bit-accurate film grain simulation
US7680356B2 (en) 2003-10-14 2010-03-16 Thomson Licensing Technique for bit-accurate comfort noise addition
WO2005076599A1 (en) * 2004-02-03 2005-08-18 Koninklijke Philips Electronics N.V. Changing the aspect ratio of images to be displayed on a screen
US8150206B2 (en) 2004-03-30 2012-04-03 Thomson Licensing Method and apparatus for representing image granularity by one or more parameters
FR2872664A1 (en) 2004-07-01 2006-01-06 Nextream France Sa DEVICE AND METHOD FOR PRE-TRAITEMEBNT BEFORE ENCODING A SEQUENCE OF VIDEO IMAGES
US20060012719A1 (en) * 2004-07-12 2006-01-19 Nokia Corporation System and method for motion prediction in scalable video coding
US20060028562A1 (en) * 2004-08-09 2006-02-09 Martin Schmitz Fast area-selected filtering for pixel-noise and analog artifacts reduction
US8014558B2 (en) 2004-10-18 2011-09-06 Thomson Licensing Methods, apparatus and system for film grain simulation
CA2584215A1 (en) * 2004-10-18 2006-04-27 Samsung Electronics Co., Ltd. Video coding and decoding methods using interlayer filtering and video encoder and decoder using the same
FR2876861A1 (en) * 2004-10-20 2006-04-21 Thomson Licensing Sa Video image e.g. digital television video image, encoding method for providing encoded data stream, involves encoding standard definition format image for parts common to zoomed image to provide encoded data to upper encoded stream layer
FR2876860A1 (en) * 2004-10-20 2006-04-21 Thomson Licensing Sa METHOD FOR HIERARCHIC ENCODING OF VIDEO IMAGES
EP1803303B1 (en) 2004-10-21 2019-12-04 InterDigital VC Holdings, Inc. Technique for adaptive de-blocking of block-based film grain patterns
DE602005020967D1 (en) 2004-11-16 2010-06-10 Thomson Licensing BITPRECISION SEED INITIALISATION FOR PSEUDOZUFALLSNUMMERN GENERATORS USED IN A VIDEO SYSTEM
WO2006055333A2 (en) 2004-11-16 2006-05-26 Thomson Licensing Film grain sei message insertion for bit-accurate simulation in a video system
WO2006055193A1 (en) 2004-11-16 2006-05-26 Thomson Licensing Film grain simulation method based on pre-computed transform coefficients
PT1812905T (en) 2004-11-17 2019-08-06 Interdigital Vc Holdings Inc Bit-accurate film grain simulation method based on pre-computed transformed coefficients
FR2879066B1 (en) * 2004-12-03 2007-04-06 Thomson Licensing Sa METHOD AND DEVICE FOR HIERARCHICAL ENCODING BETWEEN LAYERS
WO2006058921A1 (en) * 2004-12-03 2006-06-08 Thomson Licensing Method for scalable video coding
JP2008523686A (en) * 2004-12-13 2008-07-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Scalable image coding
WO2006082150A2 (en) * 2005-02-07 2006-08-10 Thomson Licensing METHOD AND APPARATUS FOR REPLAYING A VIDEO SIGNAL AND ONE OR MORE AUDIO SIGNALS RELATED TO AUDIO/VIDEO DATA THAT ARE BASED ON A 24Hz FRAME FREQUENCY VIDEO SIGNAL
WO2006087319A2 (en) 2005-02-18 2006-08-24 Thomson Licensing Method for deriving coding information for high resolution pictures from low resoluton pictures and coding and decoding devices implementing said method
US8175168B2 (en) * 2005-03-18 2012-05-08 Sharp Laboratories Of America, Inc. Methods and systems for picture up-sampling
EP1737240A3 (en) * 2005-06-21 2007-03-14 Thomson Licensing Method for scalable image coding or decoding
JPWO2007063912A1 (en) * 2005-11-29 2009-05-07 パナソニック株式会社 Playback device
JP5112332B2 (en) 2006-01-05 2013-01-09 トムソン ライセンシング Inter-layer motion prediction method
JP2009522971A (en) * 2006-01-10 2009-06-11 ノキア コーポレイション Switchable filter upsampling mechanism for scalable video coding
US20090304081A1 (en) * 2006-03-23 2009-12-10 Koninklijke Philips Electronics N.V. Coding device and method for scalable encoding of movie containing fields
EP1879399A1 (en) * 2006-07-12 2008-01-16 THOMSON Licensing Method for deriving motion data for high resolution pictures from motion data of low resolution pictures and coding and decoding devices implementing said method
CN101385334B (en) 2006-12-18 2011-09-14 索尼株式会社 Imaging device and method, recording device and method, and reproduction device and method
US10715834B2 (en) 2007-05-10 2020-07-14 Interdigital Vc Holdings, Inc. Film grain simulation based on pre-computed transform coefficients
US10284842B2 (en) * 2013-03-05 2019-05-07 Qualcomm Incorporated Inter-layer reference picture construction for spatial scalability with different aspect ratios
WO2017030062A1 (en) * 2015-08-19 2017-02-23 ソニー株式会社 Transmission device, transmission method, reception device, and reception method
CN113316001B (en) * 2021-05-25 2023-04-11 上海哔哩哔哩科技有限公司 Video alignment method and device
US11587208B2 (en) 2021-05-26 2023-02-21 Qualcomm Incorporated High quality UI elements with frame extrapolation
CN114697677A (en) * 2022-03-31 2022-07-01 展讯通信（上海）有限公司 Data compression method and device, computer readable storage medium and terminal

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2126467A1 (en) * 1993-07-13 1995-01-14 Barin Geoffry Haskell Scalable encoding and decoding of high-resolution progressive video
US5828788A (en) * 1995-06-29 1998-10-27 Thomson Multimedia, S.A. System for processing data in variable segments and with variable data resolution
JP3788823B2 (en) * 1995-10-27 2006-06-21 株式会社東芝 Moving picture encoding apparatus and moving picture decoding apparatus
US5852565A (en) * 1996-01-30 1998-12-22 Demografx Temporal and resolution layering in advanced television

Also Published As

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JP2003531514A (en) 2003-10-21
EP1279111A4 (en) 2005-03-23
CA2406459C (en) 2006-06-06
WO2001077871A1 (en) 2001-10-18
AU2001251386A1 (en) 2001-10-23
JP4352105B2 (en) 2009-10-28
EP1279111A1 (en) 2003-01-29

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