FR2671253B1 - Dispositif de video-detection a capteur d'images a reponse logaritmique. - Google Patents

Dispositif de video-detection a capteur d'images a reponse logaritmique.

Info

Publication number
FR2671253B1
FR2671253B1 FR9016550A FR9016550A FR2671253B1 FR 2671253 B1 FR2671253 B1 FR 2671253B1 FR 9016550 A FR9016550 A FR 9016550A FR 9016550 A FR9016550 A FR 9016550A FR 2671253 B1 FR2671253 B1 FR 2671253B1
Authority
FR
France
Prior art keywords
logaritmic
video
image sensor
detection device
response image
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
FR9016550A
Other languages
English (en)
Other versions
FR2671253A1 (fr
Inventor
Bernard Taillade
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.)
Hymatom SA
Original Assignee
Hymatom SA
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 Hymatom SA filed Critical Hymatom SA
Priority to FR9016550A priority Critical patent/FR2671253B1/fr
Publication of FR2671253A1 publication Critical patent/FR2671253A1/fr
Application granted granted Critical
Publication of FR2671253B1 publication Critical patent/FR2671253B1/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
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
FR9016550A 1990-12-31 1990-12-31 Dispositif de video-detection a capteur d'images a reponse logaritmique. Expired - Fee Related FR2671253B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9016550A FR2671253B1 (fr) 1990-12-31 1990-12-31 Dispositif de video-detection a capteur d'images a reponse logaritmique.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9016550A FR2671253B1 (fr) 1990-12-31 1990-12-31 Dispositif de video-detection a capteur d'images a reponse logaritmique.

Publications (2)

Publication Number Publication Date
FR2671253A1 FR2671253A1 (fr) 1992-07-03
FR2671253B1 true FR2671253B1 (fr) 1997-12-12

Family

ID=9403886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9016550A Expired - Fee Related FR2671253B1 (fr) 1990-12-31 1990-12-31 Dispositif de video-detection a capteur d'images a reponse logaritmique.

Country Status (1)

Country Link
FR (1) FR2671253B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5934772A (ja) * 1982-08-20 1984-02-25 Olympus Optical Co Ltd 画像信号処理装置
FR2589301B1 (fr) * 1985-10-28 1988-08-19 I2S Nouveaux dispositifs d'obturation electronique
US4647975A (en) * 1985-10-30 1987-03-03 Polaroid Corporation Exposure control system for an electronic imaging camera having increased dynamic range
JPH0797841B2 (ja) * 1987-06-09 1995-10-18 キヤノン株式会社 撮像装置
IL87306A0 (en) * 1988-08-02 1989-01-31 Technion Res & Dev Foundation Wide dynamic range camera

Also Published As

Publication number Publication date
FR2671253A1 (fr) 1992-07-03

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Legal Events

Date Code Title Description
ER Errata listed in the french official journal (bopi)

Free format text: 27/92

ST Notification of lapse
RN Application for restoration
FC Decision of inpi director general to approve request for restoration
ST Notification of lapse
FC Decision of inpi director general to approve request for restoration
RN Application for restoration
ST Notification of lapse