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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 Industrial 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 Industrial Co Ltd filed Critical Matsushita Electric Industrial 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)

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KR100760608B1 (ko) * 2004-05-18 2007-09-20 파이오니아 플라즈마 디스플레이 가부시키가이샤 거짓윤곽경감장치, 표시장치, 거짓윤곽경감방법, 및거짓윤곽경감 프로그램
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KR100594738B1 (ko) * 2004-12-28 2006-06-30 삼성전자주식회사 비트 깊이 감소로 인하여 발생된 윤곽선을 제거하기 위한장치
EP1801768B1 (en) 2005-12-22 2010-11-17 Imaging Systems Technology, Inc. SAS Addressing of surface discharge AC plasma display
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
CN103918274B (zh) 2011-11-01 2015-08-26 杜比实验室特许公司 对具有扩展动态范围的图像的分层编码中的自适应伪轮廓预防
US9911179B2 (en) 2014-07-18 2018-03-06 Dolby Laboratories Licensing Corporation Image decontouring in high dynamic range video processing
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
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
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

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Also Published As

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

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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