[go: up one dir, main page]

BR9908562A - Aparelho e método de correção de contorno falso - Google Patents

Aparelho e método de correção de contorno falso

Info

Publication number
BR9908562A
BR9908562A BR9908562-3A BR9908562A BR9908562A BR 9908562 A BR9908562 A BR 9908562A BR 9908562 A BR9908562 A BR 9908562A BR 9908562 A BR9908562 A BR 9908562A
Authority
BR
Brazil
Prior art keywords
double bit
false contour
bit shift
signal
false
Prior art date
Application number
BR9908562-3A
Other languages
English (en)
Inventor
Minoru Kawabata
Atsuhisa Kageyama
Masahiro Takeshima
Original Assignee
Matsushita Electric Ind Co Ltd
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 Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of BR9908562A publication Critical patent/BR9908562A/pt

Links

Classifications

    • 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
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/142—Edging; Contouring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4318—Generation of visual interfaces for content selection or interaction; Content or additional data rendering by altering the content in the rendering process, e.g. blanking, blurring or masking an image region
    • 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
    • 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
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

"APARELHO E MéTODO DE CORREçãO DE CONTORNO FALSO" Trata-se da presente invenção é fornecer um aparelho de correção de contorno falso capaz de remover um contorno falso em uma imagem baseada em um sinal de imagem digital enquanto impede tal efeito lateral causado por correção de contorno falso que ocorrem ruídos que distorcem o mostrador em uma tela. portanto, no aparelho de correção de contorno falso de acordo com a presente invenção, um circuito de detecção de mudança de bit duplo (1) detecta como uma mudança de bit duplo uma mudança de valor de sinal que é duas vezes a unidade de quantização mínima em um sinal de imagem digital (a), e emite um sinal de detecção de mudança de bit duplo (b) representando a posição da mudança de bit duplo. um circuito de correção de sinal (2a) corrige a mudança de bit duplo no sinal de imagem digital (a) em duas mudanças de um bit nas bases do sinal de detecção de mudança de bit duplo (b). Consequentemente, um contorno falso correspondendo a uma parte onde existe a mudança de bit duplo é removido.
BR9908562-3A 1998-04-17 1999-04-14 Aparelho e método de correção de contorno falso BR9908562A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10758498 1998-04-17
PCT/JP1999/001978 WO1999055078A1 (en) 1998-04-17 1999-04-14 False contour correcting apparatus and method

Publications (1)

Publication Number Publication Date
BR9908562A true BR9908562A (pt) 2000-11-21

Family

ID=14462877

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9908562-3A BR9908562A (pt) 1998-04-17 1999-04-14 Aparelho e método de correção de contorno falso

Country Status (9)

Country Link
US (2) US6661469B1 (pt)
EP (1) EP1072153B1 (pt)
KR (1) KR100370704B1 (pt)
CN (1) CN1130069C (pt)
BR (1) BR9908562A (pt)
DE (1) DE69914593T2 (pt)
ID (1) ID26400A (pt)
MY (1) MY122210A (pt)
WO (1) WO1999055078A1 (pt)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1072153B1 (en) * 1998-04-17 2004-02-04 Matsushita Electric Industrial Co., Ltd. False contour correcting apparatus and method
JP3494978B2 (ja) * 1999-11-06 2004-02-09 三星電子株式会社 映像ディスプレーシステムにおける擬似輪郭補正装置及び方法
FR2805429B1 (fr) * 2000-02-21 2002-08-16 Telediffusion Fse Procede de controle de la qualite numeriques distribuees par detection de faux contours
US6791515B2 (en) 2000-08-23 2004-09-14 Matsushita Electric Industrial Co., Ltd. Image display apparatus for writing display information with reduced electric consumption
JP4054190B2 (ja) * 2001-12-27 2008-02-27 松下電器産業株式会社 データ転送システム
JP2004172856A (ja) * 2002-11-19 2004-06-17 Fuji Photo Film Co Ltd 画像データ作成方法および装置
KR100472483B1 (ko) * 2002-11-29 2005-03-10 삼성전자주식회사 의사 윤곽 제거 방법 및 이에 적합한 장치
US8305301B1 (en) 2003-02-04 2012-11-06 Imaging Systems Technology Gamma correction
US8289233B1 (en) 2003-02-04 2012-10-16 Imaging Systems Technology Error diffusion
JP4325388B2 (ja) * 2003-12-12 2009-09-02 ソニー株式会社 信号処理装置、画像表示装置および信号処理方法
JP3801179B2 (ja) * 2004-01-30 2006-07-26 松下電器産業株式会社 フレーム巡回型ノイズ低減方法
EP1599033A4 (en) * 2004-02-18 2008-02-13 Matsushita Electric Ind Co Ltd IMAGE CORRECTION PROCESS AND IMAGE CORRECTION DEVICE
KR100760608B1 (ko) * 2004-05-18 2007-09-20 파이오니아 플라즈마 디스플레이 가부시키가이샤 거짓윤곽경감장치, 표시장치, 거짓윤곽경감방법, 및거짓윤곽경감 프로그램
US7634615B2 (en) * 2004-06-10 2009-12-15 Marvell World Trade Ltd. Adaptive storage system
JP4843489B2 (ja) * 2004-11-29 2011-12-21 パナソニック株式会社 画像処理装置
KR100594738B1 (ko) * 2004-12-28 2006-06-30 삼성전자주식회사 비트 깊이 감소로 인하여 발생된 윤곽선을 제거하기 위한장치
DE602005024849D1 (de) 2005-12-22 2010-12-30 Imaging Systems Technology Inc SAS-Adressierung einer AC-Plasmaanzeige mit Oberflächenentladung
JP4810473B2 (ja) * 2007-03-13 2011-11-09 オリンパス株式会社 画像処理装置および画像処理プログラム
US8248328B1 (en) 2007-05-10 2012-08-21 Imaging Systems Technology Plasma-shell PDP with artifact reduction
US8873877B2 (en) 2011-11-01 2014-10-28 Dolby Laboratories Licensing Corporation Adaptive false contouring prevention in layered coding of images with extended dynamic range
US9911179B2 (en) 2014-07-18 2018-03-06 Dolby Laboratories Licensing Corporation Image decontouring in high dynamic range video processing
CN106470292B (zh) 2015-08-20 2019-08-27 联咏科技股份有限公司 图像处理装置及图像处理方法
CN106470293B (zh) * 2015-08-20 2019-07-09 联咏科技股份有限公司 图像处理装置及图像处理方法
US10579339B2 (en) * 2017-04-05 2020-03-03 Intel Corporation Random number generator that includes physically unclonable circuits
TWI727784B (zh) * 2020-05-05 2021-05-11 瑞昱半導體股份有限公司 影像去色帶方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56100572A (en) 1980-01-17 1981-08-12 Fuji Photo Film Co Ltd Signal processing system of variable density picture
US4972495A (en) * 1988-12-21 1990-11-20 General Electric Company Feature extraction processor
GB8906587D0 (en) * 1989-03-22 1989-05-04 Philips Electronic Associated Region/texture coding systems
JP2532682B2 (ja) * 1989-10-13 1996-09-11 松下電器産業株式会社 ビデオクロマ信号処理回路
US5546135A (en) * 1992-02-28 1996-08-13 Matsushita Electric Industrial Co., Ltd. Contour restoration apparatus
JPH0662280A (ja) 1992-08-06 1994-03-04 Matsushita Electric Ind Co Ltd 偽輪郭補正回路
JP3306671B2 (ja) * 1992-09-24 2002-07-24 日本テキサス・インスツルメンツ株式会社 ノイズ低減回路
US5850294A (en) * 1995-12-18 1998-12-15 Lucent Technologies Inc. Method and apparatus for post-processing images
US6052491A (en) * 1996-01-26 2000-04-18 Texas Instruments Incorporated Non-monotonic contour diffusion and algorithm
JP3179036B2 (ja) * 1996-10-14 2001-06-25 三菱電機株式会社 ディスプレイ装置
JPH10124000A (ja) * 1996-10-22 1998-05-15 Pioneer Electron Corp 自発光表示器の駆動装置
JP3712802B2 (ja) * 1996-10-29 2005-11-02 富士通株式会社 中間調表示方法および表示装置
US5966461A (en) * 1997-03-27 1999-10-12 Xerox Corporation Reduction of false contours by chrominance modulation
JP3045284B2 (ja) * 1997-10-16 2000-05-29 日本電気株式会社 動画表示方法および装置
EP1072153B1 (en) * 1998-04-17 2004-02-04 Matsushita Electric Industrial Co., Ltd. False contour correcting apparatus and method
US6496194B1 (en) * 1998-07-30 2002-12-17 Fujitsu Limited Halftone display method and display apparatus for reducing halftone disturbances occurring in moving image portions
JP3494978B2 (ja) * 1999-11-06 2004-02-09 三星電子株式会社 映像ディスプレーシステムにおける擬似輪郭補正装置及び方法
DE60010063T2 (de) * 2000-06-09 2004-08-19 Deutsche Thomson-Brandt Gmbh Verfahren und Vorrichtung zur Videobildbearbeitung zur Kompensation des Falschkontureffekts

Also Published As

Publication number Publication date
DE69914593T2 (de) 2004-12-16
KR20010033688A (ko) 2001-04-25
KR100370704B1 (ko) 2003-02-05
MY122210A (en) 2006-03-31
EP1072153B1 (en) 2004-02-04
WO1999055078A1 (en) 1999-10-28
US20040008282A1 (en) 2004-01-15
ID26400A (id) 2000-12-21
EP1072153A1 (en) 2001-01-31
CN1130069C (zh) 2003-12-03
US6661469B1 (en) 2003-12-09
CN1297643A (zh) 2001-05-30
US7209182B2 (en) 2007-04-24
DE69914593D1 (de) 2004-03-11

Similar Documents

Publication Publication Date Title
BR9908562A (pt) Aparelho e método de correção de contorno falso
KR920014198A (ko) 화상정보의 그림/문자 자동분리 방법
KR950019810A (ko) 물체 화상 발생 방법 및 장치와 데이타 처리 시스템
AU2003283447A1 (en) Method and user interface for entering characters
DE60327004D1 (de) Bildaufnahmevorrichtung
EP1431229A4 (en) LIFT DEVICE
WO2005048236A8 (en) System and method for display device characterization, calibration, and verification
EP1363234A4 (en) DEVICE FOR PROCESSING SIGNALS
JP2003283961A5 (ja) 投写型画像表示システム、プロジェクタ、プログラム、情報記憶媒体および画像処理方法
WO2009072475A1 (ja) 入力装置、制御装置、制御システム、ハンドヘルド装置及び制御方法
KR960030710A (ko) 디지탈 신호 복호 장치
EP1031812A3 (en) Measurement apparatus
EP1791110A3 (en) Display apparatus, display system and control method thereof
WO2002045414A1 (en) Image sensor output correcting device
KR910016196A (ko) 계조보정장치
TW200603625A (en) Gradation attributes control according to characteristics of image
JP2003304410A (ja) 表示装置
WO2003085456A3 (de) Verfahren und vorrichtung zum abbilden einer maske auf einem substrat
EP1503332A4 (en) DATA IMPLEMENTATION DEVICE, DATA TRANSLATION METHOD, TRAINING DEVICE, LEARNING METHOD, PROGRAM AND RECORDING MEDIUM
KR950012268A (ko) 화상 신호 인핸스먼트 회로
CA2321409A1 (en) Picture frame generating circuit and digital television system using the same
WO2002017288A3 (fr) Dispositif de visualisation a luminophores
TW200614803A (en) Image sensing device with pixel correction function and method for correcting pixel sensing-information in an image sensing device
KR900702713A (ko) 비디오 프로그램의 테이프 무단복사를 방지하는 방법 및 장치
JP2004174147A (ja) 脈波測定装置

Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements