FR2698751B1 - Method and device for detecting contours in a mobile scene for example. - Google Patents

Method and device for detecting contours in a mobile scene for example.

Info

Publication number
FR2698751B1
FR2698751B1 FR9214395A FR9214395A FR2698751B1 FR 2698751 B1 FR2698751 B1 FR 2698751B1 FR 9214395 A FR9214395 A FR 9214395A FR 9214395 A FR9214395 A FR 9214395A FR 2698751 B1 FR2698751 B1 FR 2698751B1
Authority
FR
France
Prior art keywords
mobile scene
detecting contours
contours
detecting
scene
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
FR9214395A
Other languages
French (fr)
Other versions
FR2698751A1 (en
Inventor
Henri Chavel Pierre
Jean Taboury
Caroline Paulin
Mondher Attia
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.)
Automobiles Peugeot SA
Automobiles Citroen SA
Original Assignee
Automobiles Peugeot SA
Automobiles Citroen 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 Automobiles Peugeot SA, Automobiles Citroen SA filed Critical Automobiles Peugeot SA
Priority to FR9214395A priority Critical patent/FR2698751B1/en
Publication of FR2698751A1 publication Critical patent/FR2698751A1/en
Application granted granted Critical
Publication of FR2698751B1 publication Critical patent/FR2698751B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/42—Diffraction optics, i.e. systems including a diffractive element being designed for providing a diffractive effect
    • G02B27/46—Systems using spatial filters
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/02—Control of position or course in two dimensions
    • G05D1/021—Control of position or course in two dimensions specially adapted to land vehicles
    • G05D1/0231—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means
    • G05D1/0246—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using a video camera in combination with image processing means
    • G05D1/0248—Control of position or course in two dimensions specially adapted to land vehicles using optical position detecting means using a video camera in combination with image processing means in combination with a laser
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Optics & Photonics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Electromagnetism (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Image Analysis (AREA)
FR9214395A 1992-11-30 1992-11-30 Method and device for detecting contours in a mobile scene for example. Expired - Fee Related FR2698751B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9214395A FR2698751B1 (en) 1992-11-30 1992-11-30 Method and device for detecting contours in a mobile scene for example.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9214395A FR2698751B1 (en) 1992-11-30 1992-11-30 Method and device for detecting contours in a mobile scene for example.

Publications (2)

Publication Number Publication Date
FR2698751A1 FR2698751A1 (en) 1994-06-03
FR2698751B1 true FR2698751B1 (en) 1994-12-30

Family

ID=9436051

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9214395A Expired - Fee Related FR2698751B1 (en) 1992-11-30 1992-11-30 Method and device for detecting contours in a mobile scene for example.

Country Status (1)

Country Link
FR (1) FR2698751B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK1338862T3 (en) * 2002-02-04 2005-04-18 Area Sistemi S R L Optical method and device for performing geometric measurements
CN112731656B (en) * 2021-01-13 2023-06-23 上海昊量光电设备有限公司 Zero-order light filtering light path of liquid crystal spatial light modulator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3729252A (en) * 1970-06-05 1973-04-24 Eastman Kodak Co Optical spatial filtering with multiple light sources
US3746455A (en) * 1971-03-08 1973-07-17 Ibm Dimensional measurement technique using optical filtering
US4720637A (en) * 1986-06-19 1988-01-19 Polaroid Corporation Electro-optical imaging system and lens therefor
AU616640B2 (en) * 1986-10-17 1991-11-07 Global Holonetics Corporation Transform optical processing system
JP2587958B2 (en) * 1987-10-16 1997-03-05 富士写真フイルム 株式会社 Radiation image information reader

Also Published As

Publication number Publication date
FR2698751A1 (en) 1994-06-03

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20090731