ATE486462T1 - Unschärfemessung in videosequenzen - Google Patents

Unschärfemessung in videosequenzen

Info

Publication number
ATE486462T1
ATE486462T1 AT03254657T AT03254657T ATE486462T1 AT E486462 T1 ATE486462 T1 AT E486462T1 AT 03254657 T AT03254657 T AT 03254657T AT 03254657 T AT03254657 T AT 03254657T AT E486462 T1 ATE486462 T1 AT E486462T1
Authority
AT
Austria
Prior art keywords
video sequence
test video
edge
blurring
blurring value
Prior art date
Application number
AT03254657T
Other languages
English (en)
Inventor
Bei Li
Wilfried M Osberger
Original Assignee
Tektronix 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 Tektronix Inc filed Critical Tektronix Inc
Application granted granted Critical
Publication of ATE486462T1 publication Critical patent/ATE486462T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
    • 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
    • H04N5/20—Circuitry for controlling amplitude response
    • H04N5/205—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic
    • H04N5/208—Circuitry for controlling amplitude response for correcting amplitude versus frequency characteristic for compensating for attenuation of high frequency components, e.g. crispening, aperture distortion correction
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Image Analysis (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Image Processing (AREA)
AT03254657T 2002-07-18 2003-07-15 Unschärfemessung in videosequenzen ATE486462T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/198,944 US7099518B2 (en) 2002-07-18 2002-07-18 Measurement of blurring in video sequences

Publications (1)

Publication Number Publication Date
ATE486462T1 true ATE486462T1 (de) 2010-11-15

Family

ID=29780221

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03254657T ATE486462T1 (de) 2002-07-18 2003-07-15 Unschärfemessung in videosequenzen

Country Status (6)

Country Link
US (1) US7099518B2 (de)
EP (1) EP1383344B1 (de)
JP (1) JP4101132B2 (de)
CN (1) CN1324906C (de)
AT (1) ATE486462T1 (de)
DE (1) DE60334659D1 (de)

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US20050280892A1 (en) * 2004-05-28 2005-12-22 Nobuyuki Nagasawa Examination method and examination apparatus
US7233349B2 (en) * 2004-09-01 2007-06-19 Videotek, Inc. Video timing display indicator
US7136536B2 (en) * 2004-12-22 2006-11-14 Telefonaktiebolaget L M Ericsson (Publ) Adaptive filter
US7684587B2 (en) * 2005-04-04 2010-03-23 Spirent Communications Of Rockville, Inc. Reduced-reference visual communication quality assessment using data hiding
JP4585456B2 (ja) * 2006-01-23 2010-11-24 株式会社東芝 ボケ変換装置
WO2007130389A2 (en) * 2006-05-01 2007-11-15 Georgia Tech Research Corporation Automatic video quality measurement system and method based on spatial-temporal coherence metrics
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US8055102B1 (en) * 2006-11-08 2011-11-08 Marvell International Ltd. Local edge count heuristic for vector interpolator
CA2674164A1 (en) * 2006-12-28 2008-07-17 Thomson Licensing Detecting block artifacts in coded images and video
US8594451B2 (en) * 2007-03-30 2013-11-26 Omnivision Technologies, Inc. Edge mapping incorporating panchromatic pixels
US7844127B2 (en) * 2007-03-30 2010-11-30 Eastman Kodak Company Edge mapping using panchromatic pixels
JP5269877B2 (ja) * 2007-04-09 2013-08-21 テクトロニクス・インコーポレイテッド 試験ビデオ・フレームの測定方法
US9131213B2 (en) * 2007-09-07 2015-09-08 Evertz Microsystems Ltd. Method of generating a blockiness indicator for a video signal
US20090079862A1 (en) * 2007-09-25 2009-03-26 Micron Technology, Inc. Method and apparatus providing imaging auto-focus utilizing absolute blur value
JP5093083B2 (ja) * 2007-12-18 2012-12-05 ソニー株式会社 画像処理装置および方法、並びに、プログラム
US8111929B2 (en) * 2008-02-29 2012-02-07 Interra Systems Inc. Method and system to detect and quantify blockiness in video files
US8794520B2 (en) * 2008-09-30 2014-08-05 Hand Held Products, Inc. Method and apparatus for operating indicia reading terminal including parameter determination
US8628015B2 (en) * 2008-10-31 2014-01-14 Hand Held Products, Inc. Indicia reading terminal including frame quality evaluation processing
US8681875B2 (en) * 2008-11-25 2014-03-25 Stmicroelectronics Asia Pacific Pte., Ltd. Apparatus and method for coding block boundary detection using interpolated autocorrelation
JP5136474B2 (ja) * 2009-03-13 2013-02-06 ソニー株式会社 画像処理装置および方法、学習装置および方法、並びに、プログラム
JP5536112B2 (ja) * 2009-03-13 2014-07-02 トムソン ライセンシング ブロックに基づいて圧縮された画像におけるぼやけの測定
US8532414B2 (en) * 2009-03-17 2013-09-10 Utc Fire & Security Corporation Region-of-interest video quality enhancement for object recognition
BR112012008431A2 (pt) * 2009-10-10 2017-06-13 Thomson Licensing processo e dispositivo para cálculo de borrão em imagens de vídeo
CN102014296B (zh) * 2010-12-10 2012-12-26 北京中科大洋科技发展股份有限公司 一种基于自适应边缘匹配及局部流处理算法的视频一致性监测方法
US8630504B2 (en) * 2012-01-16 2014-01-14 Hiok Nam Tay Auto-focus image system
US9280813B2 (en) 2012-01-20 2016-03-08 Debing Liu Blur measurement
US8749641B1 (en) * 2013-05-01 2014-06-10 Google Inc. Detecting media source quality to determine introduced phenomenon
US9584852B2 (en) * 2014-08-28 2017-02-28 International Business Machines Corporation Synchronizing two or more display devices to augment user experience
EP3144883A1 (de) * 2015-09-16 2017-03-22 Thomson Licensing Verfahren und vorrichtung zum schärfen eines videobildes mit unschärfeanzeige
US11800056B2 (en) 2021-02-11 2023-10-24 Logitech Europe S.A. Smart webcam system
US11800048B2 (en) 2021-02-24 2023-10-24 Logitech Europe S.A. Image generating system with background replacement or modification capabilities
US20240196065A1 (en) * 2021-04-28 2024-06-13 Sony Group Corporation Information processing apparatus and information processing method

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DE69803830T2 (de) * 1998-03-02 2002-09-12 Koninklijke Kpn N.V., Groningen Verfahren, Vorrichtung, ASIC und deren Benutzung zur objektiven Videoqualitätbewertung
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US7003174B2 (en) * 2001-07-02 2006-02-21 Corel Corporation Removal of block encoding artifacts
US7053953B2 (en) * 2001-12-21 2006-05-30 Eastman Kodak Company Method and camera system for blurring portions of a verification image to show out of focus areas in a captured archival image
US6888564B2 (en) * 2002-05-24 2005-05-03 Koninklijke Philips Electronics N.V. Method and system for estimating sharpness metrics based on local edge kurtosis

Also Published As

Publication number Publication date
EP1383344A3 (de) 2006-05-17
US7099518B2 (en) 2006-08-29
CN1487749A (zh) 2004-04-07
EP1383344A2 (de) 2004-01-21
EP1383344B1 (de) 2010-10-27
JP2004056828A (ja) 2004-02-19
DE60334659D1 (de) 2010-12-09
CN1324906C (zh) 2007-07-04
JP4101132B2 (ja) 2008-06-18
US20040013315A1 (en) 2004-01-22

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