IL93059A - Uneven compensation based on the scene for looking at targeted planar arrays - Google Patents

Uneven compensation based on the scene for looking at targeted planar arrays

Info

Publication number
IL93059A
IL93059A IL9305990A IL9305990A IL93059A IL 93059 A IL93059 A IL 93059A IL 9305990 A IL9305990 A IL 9305990A IL 9305990 A IL9305990 A IL 9305990A IL 93059 A IL93059 A IL 93059A
Authority
IL
Israel
Prior art keywords
signals
value
filter
antimedian
signal
Prior art date
Application number
IL9305990A
Other languages
English (en)
Hebrew (he)
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of IL93059A publication Critical patent/IL93059A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N17/00—Diagnosis, testing or measuring for television systems or their details
    • H04N17/04—Diagnosis, testing or measuring for television systems or their details for receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/20—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming only infrared radiation into image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/67—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response
    • H04N25/671—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction
    • H04N25/673—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction by using reference sources
    • H04N25/674—Noise processing, e.g. detecting, correcting, reducing or removing noise applied to fixed-pattern noise, e.g. non-uniformity of response for non-uniformity detection or correction by using reference sources based on the scene itself, e.g. defocusing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/30—Transforming light or analogous information into electric information
    • H04N5/33—Transforming infrared radiation

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Image Processing (AREA)
IL9305990A 1989-01-26 1990-01-15 Uneven compensation based on the scene for looking at targeted planar arrays IL93059A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/302,534 US4975864A (en) 1989-01-26 1989-01-26 Scene based nonuniformity compensation for starting focal plane arrays

Publications (1)

Publication Number Publication Date
IL93059A true IL93059A (en) 1994-02-27

Family

ID=23168152

Family Applications (1)

Application Number Title Priority Date Filing Date
IL9305990A IL93059A (en) 1989-01-26 1990-01-15 Uneven compensation based on the scene for looking at targeted planar arrays

Country Status (7)

Country Link
US (1) US4975864A (fr)
EP (1) EP0406410B1 (fr)
JP (1) JPH03504766A (fr)
KR (1) KR930011510B1 (fr)
DE (1) DE69010411T2 (fr)
IL (1) IL93059A (fr)
WO (1) WO1990009076A1 (fr)

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5150426A (en) * 1990-11-20 1992-09-22 Hughes Aircraft Company Moving target detection method using two-frame subtraction and a two quadrant multiplier
US5323334A (en) * 1992-12-04 1994-06-21 Hughes Aircraft Company Sensor system having nonuniformity suppression with image preservation
CA2110368C (fr) * 1992-12-07 1999-11-23 Gary M. Lindgren Correction a grande dynamique des defauts d'uniformite dans les reseaux a plan focal infrarouges
DE4300781C1 (de) * 1993-01-14 1994-05-11 Deutsche Aerospace Verfahren zur Korrektur von Bildfehlern in von einem bilderzeugenden Sensor erzeugten Bildern
US5896166A (en) * 1993-06-02 1999-04-20 Envision Medical Corporation Remote CCD video camera with non-volatile digital memory
JPH0775633A (ja) * 1993-06-30 1995-03-20 Shimadzu Corp 画像処理装置
US5381148A (en) * 1993-07-12 1995-01-10 Analog Devices, Inc. Method and apparatus for calibrating a gain control circuit
BE1007354A3 (nl) * 1993-07-23 1995-05-23 Philips Electronics Nv Signaalcorrectieschakeling.
US5471240A (en) * 1993-11-15 1995-11-28 Hughes Aircraft Company Nonuniformity correction of an imaging sensor using region-based correction terms
GB2296147B (en) * 1994-11-29 1999-06-16 Marconi Gec Ltd A signal processor
US5563405A (en) * 1995-04-28 1996-10-08 Santa Barbara Research Center Staring IR-FPA with on-FPA adaptive dynamic range control electronics
US5925875A (en) * 1996-04-26 1999-07-20 Lockheed Martin Ir Imaging Systems Apparatus and method for compensating for fixed pattern noise in planar arrays
US5717208A (en) * 1996-05-30 1998-02-10 He Holdings, Inc. Staring IR-FPA with dither-locked frame circuit
US5721427A (en) * 1996-12-19 1998-02-24 Hughes Electronics Scene-based nonuniformity correction processor incorporating motion triggering
US5903659A (en) * 1997-04-17 1999-05-11 Raytheon Company Adaptive non-uniformity compensation algorithm
DE19715983C1 (de) * 1997-04-17 1998-09-24 Aeg Infrarot Module Gmbh Verfahren zum Korrigieren der Grauwerte von Bildern einer digitalen Infrarot-Kamera
US6226034B1 (en) * 1997-05-06 2001-05-01 Roper Scientificomasd, Inc. Spatial non-uniformity correction of a color sensor
US5969758A (en) * 1997-06-02 1999-10-19 Sarnoff Corporation DC offset and gain correction for CMOS image sensor
US6040568A (en) * 1998-05-06 2000-03-21 Raytheon Company Multipurpose readout integrated circuit with in cell adaptive non-uniformity correction and enhanced dynamic range
US6330371B1 (en) * 1998-10-19 2001-12-11 Raytheon Company Adaptive non-uniformity compensation using feedforward shunting and min-mean filter
US6243498B1 (en) * 1998-10-19 2001-06-05 Raytheon Company Adaptive non-uniformity compensation using feedforwarding shunting
DE10055862C2 (de) * 2000-11-10 2003-11-13 Zeiss Optronik Gmbh Verfahren zum Ausgleich von technologisch bedingten Inhomogenitäten in den Einzelelementen eines Detektors, der zur Bildaufnahme eingesetzt wird
US7016550B2 (en) * 2002-04-19 2006-03-21 Lockheed Martin Corporation Scene-based non-uniformity offset correction for staring arrays
US6909460B2 (en) * 2001-07-25 2005-06-21 Eastman Kodak Company Median-based dark level acquisition for a frame rate clamp
WO2003085254A1 (fr) * 2002-04-04 2003-10-16 Illusion Technologies, Llc Systeme de fourniture d'energie miniature/microscopique
JP2004053584A (ja) * 2002-05-30 2004-02-19 Canon Inc 画像補正装置及び方法
DE10255021B4 (de) * 2002-11-25 2007-02-22 Carl Zeiss Optronics Gmbh Verfahren und Vorrichtung zum Erzeugen von Bilddaten einer Szene unter Berücksichtigung von Inhomogenitäten in den Signalempfindlichkeiten von Sensorelementen bei scannenden Bildgebern
US7294817B2 (en) * 2004-05-06 2007-11-13 Siemens Power Generation, Inc. System and methods for determining nonuniformity correction parameters in detector-array imaging
US7508430B1 (en) * 2005-02-18 2009-03-24 Magnachip Semiconductor, Ltd. Method for locally reducing row noise
US7880777B2 (en) 2005-05-26 2011-02-01 Fluke Corporation Method for fixed pattern noise reduction in infrared imaging cameras
US7684634B2 (en) * 2006-08-29 2010-03-23 Raytheon Company System and method for adaptive non-uniformity compensation for a focal plane array
US20080212895A1 (en) * 2007-01-09 2008-09-04 Lockheed Martin Corporation Image data processing techniques for highly undersampled images
CN100433793C (zh) * 2007-04-19 2008-11-12 华中科技大学 基于运动检测指导的红外焦平面非均匀性校正方法
US8542727B2 (en) * 2007-12-31 2013-09-24 Intel Corporation Systems and apparatuses for performing CABAC parallel encoding and decoding
US8124937B2 (en) * 2009-01-15 2012-02-28 Raytheon Company System and method for athermal operation of a focal plane array
US10091439B2 (en) 2009-06-03 2018-10-02 Flir Systems, Inc. Imager with array of multiple infrared imaging modules
DE102010008456A1 (de) * 2010-02-18 2011-08-18 Testo AG, 79853 Verfahren zur Extraktion eines IR-Bildes und Wärmebildkamera
US8610062B2 (en) 2011-03-24 2013-12-17 Raytheon Company Apparatus and method for multi-spectral imaging
CA2838992C (fr) * 2011-06-10 2018-05-01 Flir Systems, Inc. Techniques de correction de non-uniformite pour dispositifs d'imagerie infrarouge
KR102221116B1 (ko) * 2015-02-27 2021-02-26 에스케이하이닉스 주식회사 크로스 커널 구조의 중간값 필터를 이용한 영상 잡음 제거장치 및 방법
WO2016176370A1 (fr) 2015-04-27 2016-11-03 Flir Systems, Inc. Dispositif de mesure de l'humidité présentant des capacités d'imagerie thermique et procédés associés
WO2017073348A1 (fr) 2015-10-27 2017-05-04 富士フイルム株式会社 Dispositif de formation d'image infrarouge, son procédé de commande, et véhicule
WO2023018627A1 (fr) * 2021-08-09 2023-02-16 Cyan Systems Traitement d'image pour l'imagerie infrarouge suréchantillonnée

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3996421A (en) * 1975-09-02 1976-12-07 Hughes Aircraft Company Television display utilizing local area brightness control
US4231065A (en) * 1979-01-11 1980-10-28 Honeywell Inc. Local area contrast enhancement device
US4298887A (en) * 1980-06-09 1981-11-03 Rockwell International Corporation Non-uniformity correction in a multielement detector array
US4736439A (en) * 1985-05-24 1988-04-05 The United States Of America As Represented By The Secretary Of The Navy Image preprocessing by modified median filter
US4782389A (en) * 1987-04-30 1988-11-01 Rca Licensing Corporation Adaptive M-tile sample producer
US4783840A (en) * 1987-12-04 1988-11-08 Polaroid Corporation Method for enhancing image data by noise reduction or sharpening

Also Published As

Publication number Publication date
DE69010411D1 (de) 1994-08-11
DE69010411T2 (de) 1994-10-27
EP0406410A1 (fr) 1991-01-09
US4975864A (en) 1990-12-04
KR930011510B1 (ko) 1993-12-08
WO1990009076A1 (fr) 1990-08-09
KR910700583A (ko) 1991-03-15
EP0406410B1 (fr) 1994-07-06
JPH03504766A (ja) 1991-10-17

Similar Documents

Publication Publication Date Title
US4975864A (en) Scene based nonuniformity compensation for starting focal plane arrays
AU609026B1 (en) Signal processor
EP0430982B1 (fr) Camera a large gamme dynamique
US4343021A (en) Image sensor sensitivity variation compensator
US5528035A (en) Digital signal processing system for removing DC bias in the output of pyroelectric and similar detectors
US5591973A (en) Signal processor for infrared camera
US5717208A (en) Staring IR-FPA with dither-locked frame circuit
US4948964A (en) Artificial target for automatic gain normalization
EP0294954A2 (fr) Méthode de traitement d'images
US5245425A (en) Method and apparatus for equalizing the gain of multi-channel systems in the presence of noise
EP0766113A2 (fr) Eléments asphériques pour système d'imagerie infrarouge
US5391873A (en) Imaging apparatus compensating for nonuniformity in detector outputs
JPH11205812A (ja) 白バランス制御方法及び装置
US6018162A (en) System with motion detection scene-based non-uniformity correction
US5663563A (en) Electronic effective focal length compensator
EP0766204B1 (fr) Chargeur hardware à grande vitesse pour table de consultation
US5517192A (en) High resolution gain response correction circuit
JP2886510B2 (ja) ビデオ信号データの処理システム
US7046278B1 (en) Auto black expansion method and apparatus for an image sensor
NL192135C (nl) Signaalbewerkingsinrichting.
US6084640A (en) Histogram chip for line summing, line grabbing and histogramming in a thermal imaging system
McEwen A signal processor for focal plane detector arrays
SU1601777A1 (ru) Устройство дл коррекции апертурных искажений телевизионных сигналов
Horman et al. Uniformity compensation for high-quantum-efficiency focal plane arrays
EP0922359A1 (fr) Systeme d'imagerie thermique sprite

Legal Events

Date Code Title Description
RH Patent void