FR2673794B1 - Dispositif de correction de defauts pour systemes d'imagerie. - Google Patents

Dispositif de correction de defauts pour systemes d'imagerie.

Info

Publication number
FR2673794B1
FR2673794B1 FR9102646A FR9102646A FR2673794B1 FR 2673794 B1 FR2673794 B1 FR 2673794B1 FR 9102646 A FR9102646 A FR 9102646A FR 9102646 A FR9102646 A FR 9102646A FR 2673794 B1 FR2673794 B1 FR 2673794B1
Authority
FR
France
Prior art keywords
correction device
imaging systems
defect correction
defect
imaging
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.)
Expired - Fee Related
Application number
FR9102646A
Other languages
English (en)
Other versions
FR2673794A1 (fr
Inventor
Henri Pruvot
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.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
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 Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Priority to FR9102646A priority Critical patent/FR2673794B1/fr
Publication of FR2673794A1 publication Critical patent/FR2673794A1/fr
Application granted granted Critical
Publication of FR2673794B1 publication Critical patent/FR2673794B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
FR9102646A 1991-03-06 1991-03-06 Dispositif de correction de defauts pour systemes d'imagerie. Expired - Fee Related FR2673794B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9102646A FR2673794B1 (fr) 1991-03-06 1991-03-06 Dispositif de correction de defauts pour systemes d'imagerie.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9102646A FR2673794B1 (fr) 1991-03-06 1991-03-06 Dispositif de correction de defauts pour systemes d'imagerie.

Publications (2)

Publication Number Publication Date
FR2673794A1 FR2673794A1 (fr) 1992-09-11
FR2673794B1 true FR2673794B1 (fr) 1997-03-28

Family

ID=9410378

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9102646A Expired - Fee Related FR2673794B1 (fr) 1991-03-06 1991-03-06 Dispositif de correction de defauts pour systemes d'imagerie.

Country Status (1)

Country Link
FR (1) FR2673794B1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2698700B1 (fr) * 1992-11-27 1994-12-30 Thomson Csf Dispositif optique de calibration pour caméra thermique.
EP0647064B1 (fr) * 1993-10-04 2000-11-08 Raytheon Company Système optique avec des techniques de compensation de matrice placée au plan focal
FR2776458B1 (fr) * 1998-03-18 2001-11-16 Sagem Dispositif d'imagerie a compensation de biais

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4065788A (en) * 1976-02-09 1977-12-27 Mcdonnell Douglas Corporation Realtime image processor
US4173772A (en) * 1977-12-30 1979-11-06 International Business Machines Corporation Solid state image scanning system for producing a binary output
FR2492616A1 (fr) * 1980-10-17 1982-04-23 Thomson Csf Dispositif opto-electronique d'analyse d'images video-frequence par balayage rotatif
JPS5790625A (en) * 1980-11-27 1982-06-05 Fujitsu Ltd Image pickup device
GB2209107A (en) * 1987-08-26 1989-04-26 Rank Taylor Hobson Ltd Imaging apparatus
DE3836294A1 (de) * 1988-10-25 1990-04-26 Eltro Gmbh Waermebildgeraet mit detektorausgleich
JPH02206976A (ja) * 1989-02-06 1990-08-16 Fujitsu Ltd 赤外線撮像装置の感度補正方法
EP0410745B1 (fr) * 1989-07-28 1995-03-22 Texas Instruments Incorporated Interrupteur périodique à réflecteur pour les systèmes d'imagerie infrarouge

Also Published As

Publication number Publication date
FR2673794A1 (fr) 1992-09-11

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Legal Events

Date Code Title Description
TP Transmission of property
CA Change of address
CD Change of name or company name
TP Transmission of property
ST Notification of lapse

Effective date: 20071130