EP1630773A1 - Verfahren und Vorrichtung zum Halbtonzittern - Google Patents

Verfahren und Vorrichtung zum Halbtonzittern Download PDF

Info

Publication number
EP1630773A1
EP1630773A1 EP05107754A EP05107754A EP1630773A1 EP 1630773 A1 EP1630773 A1 EP 1630773A1 EP 05107754 A EP05107754 A EP 05107754A EP 05107754 A EP05107754 A EP 05107754A EP 1630773 A1 EP1630773 A1 EP 1630773A1
Authority
EP
European Patent Office
Prior art keywords
dithering
value
transfer function
output
output value
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.)
Withdrawn
Application number
EP05107754A
Other languages
English (en)
French (fr)
Inventor
Cédric Thebault
Carlos Correa
Sébastien Weitbruch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thomson Licensing SAS
Original Assignee
Thomson Licensing SAS
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
Priority claimed from EP04292087A external-priority patent/EP1630772A1/de
Application filed by Thomson Licensing SAS filed Critical Thomson Licensing SAS
Priority to EP05107754A priority Critical patent/EP1630773A1/de
Publication of EP1630773A1 publication Critical patent/EP1630773A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2044—Display of intermediate tones using dithering
    • G09G3/2051—Display of intermediate tones using dithering with use of a spatial dither pattern
    • G09G3/2055—Display of intermediate tones using dithering with use of a spatial dither pattern the pattern being varied in time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels

Definitions

  • this object is solved by a method for processing video data by applying a transfer function on said video data, a dithering being applied to said transfer function.
  • the method comprises the following steps :
  • the error on the output (quantization error) is not easy to estimate because this error is always relatively smaller in the higher levels than in the low levels (in case of standard encoding).
  • the estimation is worse in case of Gravity Center Coding (cf. patent application EP1256924) or Metacode (cf. patent application EP1353315), because of the non uniform distribution of the levels and the resulting non-uniformity of the quantization error.
  • the first step S1 as shown in Figure 3 is to decide the limit ⁇ of the error which will be accepted.
  • a possible value for ⁇ might be 0,1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
EP05107754A 2004-08-25 2005-08-24 Verfahren und Vorrichtung zum Halbtonzittern Withdrawn EP1630773A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP05107754A EP1630773A1 (de) 2004-08-25 2005-08-24 Verfahren und Vorrichtung zum Halbtonzittern

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP04292087A EP1630772A1 (de) 2004-08-25 2004-08-25 Verfahren und Vorrichtung zum Halbtonzittern
EP05107754A EP1630773A1 (de) 2004-08-25 2005-08-24 Verfahren und Vorrichtung zum Halbtonzittern

Publications (1)

Publication Number Publication Date
EP1630773A1 true EP1630773A1 (de) 2006-03-01

Family

ID=35720953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05107754A Withdrawn EP1630773A1 (de) 2004-08-25 2005-08-24 Verfahren und Vorrichtung zum Halbtonzittern

Country Status (1)

Country Link
EP (1) EP1630773A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000023181A (ja) * 1998-07-03 2000-01-21 Hitachi Ltd カラー映像信号の表示装置
EP1256924A1 (de) 2001-05-08 2002-11-13 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur Bearbeitung von Videobildern
EP1262947A1 (de) 2001-06-01 2002-12-04 Thomson Licensing S.A. Verfahren und Vorrichtung zur Verarbeitung von auf einem Bildschirm dargestellten Videodaten
EP1269457A2 (de) 2000-03-22 2003-01-02 Thomson Licensing S.A. Videobilddatenverarbeitungsverfahren für eine anzeigevorrichtung
EP1324305A1 (de) * 2000-10-03 2003-07-02 Seiko Epson Corporation Bildverarbeitungsverfahren,-gerät und programm sowie mit diesem programm versehener aufzeichnungsträger
EP1353315A1 (de) 2002-04-11 2003-10-15 Thomson Licensing S.A. Verfahren und Vorrichtung zur Verbesserung der Grauwertauflösung einer Bildanzeigevorrichtung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000023181A (ja) * 1998-07-03 2000-01-21 Hitachi Ltd カラー映像信号の表示装置
EP1269457A2 (de) 2000-03-22 2003-01-02 Thomson Licensing S.A. Videobilddatenverarbeitungsverfahren für eine anzeigevorrichtung
EP1324305A1 (de) * 2000-10-03 2003-07-02 Seiko Epson Corporation Bildverarbeitungsverfahren,-gerät und programm sowie mit diesem programm versehener aufzeichnungsträger
EP1256924A1 (de) 2001-05-08 2002-11-13 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur Bearbeitung von Videobildern
EP1262947A1 (de) 2001-06-01 2002-12-04 Thomson Licensing S.A. Verfahren und Vorrichtung zur Verarbeitung von auf einem Bildschirm dargestellten Videodaten
EP1353315A1 (de) 2002-04-11 2003-10-15 Thomson Licensing S.A. Verfahren und Vorrichtung zur Verbesserung der Grauwertauflösung einer Bildanzeigevorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 04 31 August 2000 (2000-08-31) *

Similar Documents

Publication Publication Date Title
EP1269457B1 (de) Videobilddatenverarbeitungsverfahren für eine anzeigevorrichtung
US6069609A (en) Image processor using both dither and error diffusion to produce halftone images with less flicker and patterns
US7598933B2 (en) Apparatus and method for driving plasma display panel to enhance display of gray scale and color
KR100889429B1 (ko) 플라즈마 디스플레이 장치 및 그 구동 방법
JP2010224566A (ja) フレームレート制御方法及びそのための液晶表示装置
US6836263B2 (en) Display apparatus and method for displaying gradation levels
US7738719B2 (en) Method and device for processing video data by combining error diffusion and another dithering
US20060044325A1 (en) Method and device for dithering
US6774874B2 (en) Display apparatus for displaying an image and an image displaying method
EP1262947B1 (de) Verfahren und Vorrichtung zur Verarbeitung von auf einem Bildschirm dargestellten Videodaten
EP1705631A2 (de) Ansteuervorrichtung für eine Plasmaanzeigetafel, Signalverarbeitungsverfahren für eine Plasmaanzeigetafel und Bildanzeigevorrichtung für eine Plasmaanzeigetafel
EP1758071A1 (de) Verfahren und Vorrichtung zur Videodatenbearbeitung für ein Anzeigegerät
EP1630773A1 (de) Verfahren und Vorrichtung zum Halbtonzittern
US20070001933A1 (en) Device and method for driving display panel
KR100403698B1 (ko) 다계조 화상 표시 방법 및 그 장치
KR20050076442A (ko) 플라즈마 디스플레이 패널의 화상처리 방법
EP1187089B1 (de) Teilbild-Plasma-Anzeige und Verfahren zur Bilddarstellung dafür
KR100414107B1 (ko) 플라즈마 디스플레이 패널의 계조표시 처리방법
EP1995712A1 (de) Verfahren zur Anwendung von Dithering für Videodaten und Anzeigevorrichtung mit diesem Verfahren
KR100579933B1 (ko) 플라즈마 디스플레이 패널의 화상처리 장치 및 화상처리방법
KR100625549B1 (ko) 플라즈마 디스플레이 패널의 화상처리 방법
KR100634690B1 (ko) 플라즈마 디스플레이 패널의 화상처리 장치 및 화상처리방법
KR100625548B1 (ko) 플라즈마 디스플레이 패널의 화상처리 장치 및 화상처리방법
KR20060004393A (ko) 플라즈마 디스플레이 패널의 화상처리 방법
Cho et al. New multi-luminance-level subfield method for reducing low gray-level contour in AC plasma display panel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

17P Request for examination filed

Effective date: 20060831

AKX Designation fees paid

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 20061201

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20090303