ES2199076A1 - Circuito de adaptacion de luminancia basado en interacciones locales - Google Patents

Circuito de adaptacion de luminancia basado en interacciones locales

Info

Publication number
ES2199076A1
ES2199076A1 ES200201703A ES200201703A ES2199076A1 ES 2199076 A1 ES2199076 A1 ES 2199076A1 ES 200201703 A ES200201703 A ES 200201703A ES 200201703 A ES200201703 A ES 200201703A ES 2199076 A1 ES2199076 A1 ES 2199076A1
Authority
ES
Spain
Prior art keywords
circuit based
luminance
interactions
matching circuit
local
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.)
Granted
Application number
ES200201703A
Other languages
English (en)
Other versions
ES2199076B1 (es
Inventor
Matthias Sven Keil
Perez Gabriel Cristobal
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.)
Consejo Superior de Investigaciones Científicas
Original Assignee
Consejo Superior de Investigaciones Científicas
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 Consejo Superior de Investigaciones Científicas filed Critical Consejo Superior de Investigaciones Científicas
Priority to ES200201703A priority Critical patent/ES2199076B1/es
Priority to AU2003250253A priority patent/AU2003250253A1/en
Priority to PCT/ES2003/000366 priority patent/WO2004010378A1/es
Publication of ES2199076A1 publication Critical patent/ES2199076A1/es
Application granted granted Critical
Publication of ES2199076B1 publication Critical patent/ES2199076B1/es
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/60—Image enhancement or restoration using machine learning, e.g. neural networks
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/20—Image preprocessing
    • G06V10/36—Applying a local operator, i.e. means to operate on image points situated in the vicinity of a given point; Non-linear local filtering operations, e.g. median filtering
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20004—Adaptive image processing
    • G06T2207/20012—Locally adaptive
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20084—Artificial neural networks [ANN]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Multimedia (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Processing Of Color Television Signals (AREA)
  • Image Analysis (AREA)

Abstract

Circuito de adaptación de luminancia basado en interacciones locales. El sistema propuesto está basado en un autómata celular. Su funcionamiento consiste esencialmente en un conjunto de ecuaciones diferenciales. Las ecuaciones están acopladas exclusivamente por medio de interacciones entre los elementos vecinos, es decir, cada célula intercambia información exclusivamente con los cuatro vecinos más próximos. Debido a su naturaleza local, el sistema es susceptible de ser implementado en VLSI, y utilizado por una amplia gama de circuitos en donde sea precisa una normalización de la señal de entrada en una etapa de procesado posterior, que tenga un rango dinámico de niveles de luminosidad restringido.
ES200201703A 2002-07-19 2002-07-19 Circuito de adaptacion de luminancia basado en interacciones locales. Expired - Fee Related ES2199076B1 (es)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES200201703A ES2199076B1 (es) 2002-07-19 2002-07-19 Circuito de adaptacion de luminancia basado en interacciones locales.
AU2003250253A AU2003250253A1 (en) 2002-07-19 2003-07-15 Luminance-matching circuit based on local interactions
PCT/ES2003/000366 WO2004010378A1 (es) 2002-07-19 2003-07-15 Circuito de adaptación de luminancia basado en interacciones locales

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200201703A ES2199076B1 (es) 2002-07-19 2002-07-19 Circuito de adaptacion de luminancia basado en interacciones locales.

Publications (2)

Publication Number Publication Date
ES2199076A1 true ES2199076A1 (es) 2004-02-01
ES2199076B1 ES2199076B1 (es) 2005-06-16

Family

ID=30470581

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200201703A Expired - Fee Related ES2199076B1 (es) 2002-07-19 2002-07-19 Circuito de adaptacion de luminancia basado en interacciones locales.

Country Status (3)

Country Link
AU (1) AU2003250253A1 (es)
ES (1) ES2199076B1 (es)
WO (1) WO2004010378A1 (es)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140670A (en) * 1989-10-05 1992-08-18 Regents Of The University Of California Cellular neural network
EP0702482A2 (en) * 1994-09-15 1996-03-20 Xerox Corporation Error diffusion halftoning with homogeneous response in high/low intensity image regions
US5717834A (en) * 1993-08-26 1998-02-10 Werblin; Frank S. CNN programamble topographic sensory device
JPH10293841A (ja) * 1997-04-18 1998-11-04 Agency Of Ind Science & Technol カラー画像の画質改善方法及びその装置
US5936684A (en) * 1996-10-29 1999-08-10 Seiko Epson Corporation Image processing method and image processing apparatus
WO2001026054A2 (en) * 1999-10-01 2001-04-12 Microsoft Corporation Locally adapted histogram equalization

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5182657A (en) * 1989-04-27 1993-01-26 Casio Computer Co., Ltd. Image processing apparatus including binary data producing unit
JP2951910B2 (ja) * 1997-03-18 1999-09-20 松下電器産業株式会社 撮像装置の階調補正装置及び階調補正方法
WO2000063838A1 (en) * 1999-04-16 2000-10-26 Izahi Corporation Automatic black level, luminosity and color compensation for digital still images and digital video

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5140670A (en) * 1989-10-05 1992-08-18 Regents Of The University Of California Cellular neural network
US5717834A (en) * 1993-08-26 1998-02-10 Werblin; Frank S. CNN programamble topographic sensory device
EP0702482A2 (en) * 1994-09-15 1996-03-20 Xerox Corporation Error diffusion halftoning with homogeneous response in high/low intensity image regions
US5936684A (en) * 1996-10-29 1999-08-10 Seiko Epson Corporation Image processing method and image processing apparatus
JPH10293841A (ja) * 1997-04-18 1998-11-04 Agency Of Ind Science & Technol カラー画像の画質改善方法及びその装置
WO2001026054A2 (en) * 1999-10-01 2001-04-12 Microsoft Corporation Locally adapted histogram equalization

Also Published As

Publication number Publication date
ES2199076B1 (es) 2005-06-16
AU2003250253A1 (en) 2004-02-09
WO2004010378A1 (es) 2004-01-29

Similar Documents

Publication Publication Date Title
US6933755B2 (en) Output driving circuit for maintaining I/O signal duty ratios
AU2002359642A1 (en) Input buffer and method for voltage level detection
ATE339006T1 (de) Pufferanordnung für speicher
KR880010422A (ko) 반도체 기억장치
AU2002338564A1 (en) Circuit and method for memory test and repair
EP1246157A3 (en) Emissive display using organic electroluminescent devices
ES2107905T3 (es) Conectador para reducir la diafonia.
US20100172199A1 (en) Balanced sense amplifier for single ended bitline memory architecture
GB2488224A (en) A CMOS static latch with low clock power consumption
DE602006014417D1 (de) Prüfen einer integrierten schaltung, die geheiminformationen enthält
JP2014527287A (ja) 小型で堅牢なレベルシフタのレイアウト設計
DE60128703D1 (de) Zweirichtungszwischenverstärker mit hoch/niedrig-schwellendetektionsschaltung
DE60035115D1 (de) Architketur, verfahren und schaltungen für speichervorrichtungen mit geringer leistungsaufnahme
TW200519617A (en) Processor surrogate for use in multiprocessor systems and multiprocessor system using same
EP1612802A3 (en) Magnetic random access memory element
TWI266338B (en) Output circuit of SRAM
JPH05183470A (ja) 信号伝達回路
ES2199076B1 (es) Circuito de adaptacion de luminancia basado en interacciones locales.
KR890016767A (ko) 직접회로
EP4141932A3 (en) Standard cell structure
EP1049000A3 (en) Logic circuits and carry-lookahead circuits
TW200520386A (en) Input stage for mixed-voltage-tolerant buffer without leakage issue
CN204376867U (zh) 低功耗逻辑电路及具有该逻辑电路的或非门、与非门和反相器
Aksin A high-precision high-resolution WTA-MAX circuit of O (N) complexity
EP1193714A3 (en) High-speed bank select multiplexer latch

Legal Events

Date Code Title Description
EC2A Search report published

Date of ref document: 20040201

Kind code of ref document: A1

FG2A Definitive protection

Ref document number: 2199076B1

Country of ref document: ES

FD2A Announcement of lapse in spain

Effective date: 20180808