ATE359676T1 - METHOD AND CODING/DECODING ARRANGEMENT FOR ASSESSING THE IMAGE QUALITY OF REPRODUCED IMAGE DATA - Google Patents

METHOD AND CODING/DECODING ARRANGEMENT FOR ASSESSING THE IMAGE QUALITY OF REPRODUCED IMAGE DATA

Info

Publication number
ATE359676T1
ATE359676T1 AT00942104T AT00942104T ATE359676T1 AT E359676 T1 ATE359676 T1 AT E359676T1 AT 00942104 T AT00942104 T AT 00942104T AT 00942104 T AT00942104 T AT 00942104T AT E359676 T1 ATE359676 T1 AT E359676T1
Authority
AT
Austria
Prior art keywords
assessing
coding
image data
decoding arrangement
image quality
Prior art date
Application number
AT00942104T
Other languages
German (de)
Inventor
Andries Pieter Hekstra
John Gerard Beerends
Caluwe Franciscus Elisabeth De
Robert Hendrik Koenen
Original Assignee
Tno
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 Tno filed Critical Tno
Application granted granted Critical
Publication of ATE359676T1 publication Critical patent/ATE359676T1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/572—Wavelength control

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Optical Communication System (AREA)
  • Semiconductor Lasers (AREA)

Abstract

An optical transmission system having a dense wavelength division multiplexer (DWDM). A disturbance is inserted into the output of each wavelength transmitter. A feedback control system for stabilizing the wavelength of each transmitter employs a method for ananalyzing the output of a device having wavelength dependent transmission for signatures of the disturbances.
AT00942104T 1999-06-30 2000-06-20 METHOD AND CODING/DECODING ARRANGEMENT FOR ASSESSING THE IMAGE QUALITY OF REPRODUCED IMAGE DATA ATE359676T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34390599A 1999-06-30 1999-06-30
PCT/EP2000/005958 WO2001003338A1 (en) 1999-06-30 2000-06-27 Laser wavelength control in an optical transmission system

Publications (1)

Publication Number Publication Date
ATE359676T1 true ATE359676T1 (en) 2007-05-15

Family

ID=23348184

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00942104T ATE359676T1 (en) 1999-06-30 2000-06-20 METHOD AND CODING/DECODING ARRANGEMENT FOR ASSESSING THE IMAGE QUALITY OF REPRODUCED IMAGE DATA

Country Status (4)

Country Link
EP (1) EP1108296A1 (en)
JP (1) JP2003503939A (en)
AT (1) ATE359676T1 (en)
WO (1) WO2001003338A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100324798B1 (en) * 2000-03-28 2002-02-20 이재승 Instrument for the controll of the optical source wavelengths in dense-wavelength-division-multiplexed optical communication systems
CN111831064B (en) * 2019-04-22 2022-02-18 华硕电脑股份有限公司 Electronic device with luminous decorative strip

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8522821D0 (en) * 1985-09-16 1985-10-23 British Telecomm Frequency referencing system
CA2155693C (en) * 1994-08-25 1999-12-14 Daniel A. Fishman Performance monitoring and fault location in optical transmission systems
KR970008300B1 (en) * 1994-12-02 1997-05-22 Korea Electronics Telecomm Locking apparatus for multiplexing optic frequencies
DE19734957C1 (en) * 1997-08-13 1998-12-24 Lucent Tech Network Sys Gmbh Wavelength stabilisation method for multi-channel optical transmission system

Also Published As

Publication number Publication date
WO2001003338A1 (en) 2001-01-11
JP2003503939A (en) 2003-01-28
EP1108296A1 (en) 2001-06-20

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties