CA2583279A1 - Optical correlation apparatus and method - Google Patents

Optical correlation apparatus and method Download PDF

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Publication number
CA2583279A1
CA2583279A1 CA002583279A CA2583279A CA2583279A1 CA 2583279 A1 CA2583279 A1 CA 2583279A1 CA 002583279 A CA002583279 A CA 002583279A CA 2583279 A CA2583279 A CA 2583279A CA 2583279 A1 CA2583279 A1 CA 2583279A1
Authority
CA
Canada
Prior art keywords
phase
optical
data
correlation
correlation apparatus
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.)
Abandoned
Application number
CA002583279A
Other languages
English (en)
French (fr)
Inventor
Rebecca Anne Wilson
Meirion Francis Lewis
Andrew Charles Lewin
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.)
Qinetiq Ltd
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2583279A1 publication Critical patent/CA2583279A1/en
Abandoned legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06E—OPTICAL COMPUTING DEVICES
    • G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00—Arrangements for image or video recognition or understanding
    • G06V10/88—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters
    • G06V10/89—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters using frequency domain filters, e.g. Fourier masks implemented on spatial light modulators
    • G06V10/893—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters using frequency domain filters, e.g. Fourier masks implemented on spatial light modulators characterised by the kind of filter
    • G06V10/895—Image or video recognition using optical means, e.g. reference filters, holographic masks, frequency domain filters or spatial domain filters using frequency domain filters, e.g. Fourier masks implemented on spatial light modulators characterised by the kind of filter the filter being related to phase processing, e.g. phase-only filters

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Multimedia (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Holo Graphy (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Wire Bonding (AREA)
  • Cash Registers Or Receiving Machines (AREA)
CA002583279A 2004-10-18 2005-10-18 Optical correlation apparatus and method Abandoned CA2583279A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0423093A GB2419208A (en) 2004-10-18 2004-10-18 Optical correlation employing an optical bit delay
GB0423093.4 2004-10-18
PCT/GB2005/004028 WO2006043057A2 (en) 2004-10-18 2005-10-18 Optical correlation apparatus and method

Publications (1)

Publication Number Publication Date
CA2583279A1 true CA2583279A1 (en) 2006-04-27

Family

ID=33462907

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002583279A Abandoned CA2583279A1 (en) 2004-10-18 2005-10-18 Optical correlation apparatus and method

Country Status (10)

Country Link
US (1) US8078663B2 (https=)
EP (1) EP1803077B1 (https=)
JP (1) JP2008517312A (https=)
CN (1) CN101080727A (https=)
AT (1) ATE476717T1 (https=)
AU (1) AU2005297056A1 (https=)
CA (1) CA2583279A1 (https=)
DE (1) DE602005022745D1 (https=)
GB (1) GB2419208A (https=)
WO (1) WO2006043057A2 (https=)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2157480B1 (en) 2003-04-09 2015-05-27 Nikon Corporation Exposure method and apparatus, and device manufacturing method
TWI360158B (en) 2003-10-28 2012-03-11 Nikon Corp Projection exposure device,exposure method and dev
TWI385414B (zh) 2003-11-20 2013-02-11 尼康股份有限公司 光學照明裝置、照明方法、曝光裝置、曝光方法以及元件製造方法
TWI609410B (zh) 2004-02-06 2017-12-21 尼康股份有限公司 光學照明裝置、曝光裝置、曝光方法以及元件製造方法
TW200923418A (en) * 2005-01-21 2009-06-01 Nikon Corp Exposure device, exposure method, fabricating method of device, exposure system, information collecting device, and measuring device
GB0525234D0 (en) 2005-12-12 2006-01-18 Qinetiq Ltd Correlation apparatus
US7701558B2 (en) * 2006-09-22 2010-04-20 Leica Geosystems Ag LIDAR system
GB2445588A (en) * 2006-12-16 2008-07-16 Qinetiq Ltd Optical Correlation Apparatus with parallel optical signals
GB0625107D0 (en) * 2006-12-16 2007-01-24 Qinetiq Ltd Improvements to optical correlation apparatus
WO2008152642A1 (en) 2007-06-13 2008-12-18 Ramot At Tel Aviv University Ltd. Linearised optical digital modulator
US7420656B1 (en) * 2007-08-20 2008-09-02 Sandia Corporation Scannerless loss modulated flash color range imaging
US8451427B2 (en) * 2007-09-14 2013-05-28 Nikon Corporation Illumination optical system, exposure apparatus, optical element and manufacturing method thereof, and device manufacturing method
JP5267029B2 (ja) 2007-10-12 2013-08-21 株式会社ニコン 照明光学装置、露光装置及びデバイスの製造方法
CN101681123B (zh) * 2007-10-16 2013-06-12 株式会社尼康 照明光学系统、曝光装置以及元件制造方法
WO2009050977A1 (en) * 2007-10-16 2009-04-23 Nikon Corporation Illumination optical system, exposure apparatus, and device manufacturing method
US8379187B2 (en) 2007-10-24 2013-02-19 Nikon Corporation Optical unit, illumination optical apparatus, exposure apparatus, and device manufacturing method
US9116346B2 (en) * 2007-11-06 2015-08-25 Nikon Corporation Illumination apparatus, illumination method, exposure apparatus, and device manufacturing method
EP2282188B1 (en) * 2008-05-28 2015-03-11 Nikon Corporation Illumination optical system and exposure apparatus
EP2629211A1 (en) 2009-08-21 2013-08-21 Mikko Kalervo Väänänen Method and means for data searching and language translation
GB201013195D0 (en) 2009-09-28 2010-09-22 Qinetiq Ltd Processor
GB2501309A (en) 2012-04-20 2013-10-23 Ibm Using derivatives to compare event data sets.
EP2709295A1 (fr) * 2012-09-14 2014-03-19 Alcatel Lucent Visualisation d'un signal optique par échantillonnage optique linéaire
US9671673B2 (en) * 2014-11-17 2017-06-06 Singapore University Of Technology And Design Optical device for dispersion compensation
WO2019080038A1 (en) * 2017-10-26 2019-05-02 Shenzhen Genorivision Technology Co. Ltd. LIDAR LIGHT SOURCE
DE102018222415A1 (de) * 2018-12-20 2020-06-25 Robert Bosch Gmbh Multikanal-Analog-Digital-Wandlervorrichtung für einen optoelektronischen Sensor, Verfahren zur Signalmodulation in einem optoelektronischen Sensor und laserbasierter Entfernungs- und/oder Geschwindigkeitssensor
CN111949067B (zh) * 2019-05-14 2023-04-18 中国科学院上海光学精密机械研究所 达曼卷积光计算机
EP4137880A4 (en) * 2020-06-07 2023-10-04 Sony Group Corporation SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, PROGRAM AND LIGHTING DEVICE
JP7792129B2 (ja) * 2022-01-20 2025-12-25 学校法人東海大学 光送信器、および、空間光通信送信装置
GB2631123A (en) * 2023-06-20 2024-12-25 Salience Labs Ltd A system and method for detecting a pattern in a data stream

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441724A (en) * 1964-12-08 1969-04-29 Philco Ford Corp Optical correlator
US4651297A (en) * 1984-11-28 1987-03-17 General Dynamics, Pomona Division Two-dimensional image correlator
US5040140A (en) * 1989-04-28 1991-08-13 The United States Of America As Represented By The Secretary Of The Air Force Single SLM joint transform correaltors
JPH05300124A (ja) * 1992-04-17 1993-11-12 Nippon Telegr & Teleph Corp <Ntt> 光符号化多重伝送方式
US5327286A (en) * 1992-08-31 1994-07-05 Texas Instruments Incorporated Real time optical correlation system
US5276636A (en) * 1992-09-14 1994-01-04 Cohn Robert W Method and apparatus for adaptive real-time optical correlation using phase-only spatial light modulators and interferometric detection
GB2363886B (en) * 1996-09-21 2002-02-20 Secr Defence Hybrid digital/optical system for pattern recognition
GB2317487A (en) * 1996-09-21 1998-03-25 Rupert Charles David Young Hybrid digital/optical system for pattern recognition
JP2001086097A (ja) * 1999-09-10 2001-03-30 Fuji Xerox Co Ltd 光信号多重伝送方法及び光信号多重伝送システム
JP3326473B2 (ja) 1999-12-07 2002-09-24 独立行政法人通信総合研究所 光相関器

Also Published As

Publication number Publication date
EP1803077B1 (en) 2010-08-04
JP2008517312A (ja) 2008-05-22
AU2005297056A1 (en) 2006-04-27
US20080021948A1 (en) 2008-01-24
DE602005022745D1 (de) 2010-09-16
GB0423093D0 (en) 2004-11-17
ATE476717T1 (de) 2010-08-15
GB2419208A (en) 2006-04-19
CN101080727A (zh) 2007-11-28
US8078663B2 (en) 2011-12-13
EP1803077A2 (en) 2007-07-04
WO2006043057A2 (en) 2006-04-27
WO2006043057A3 (en) 2006-08-31

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Legal Events

Date Code Title Description
FZDE Discontinued