FR2141815B3 - - Google Patents

Info

Publication number
FR2141815B3
FR2141815B3 FR7220895A FR7220895A FR2141815B3 FR 2141815 B3 FR2141815 B3 FR 2141815B3 FR 7220895 A FR7220895 A FR 7220895A FR 7220895 A FR7220895 A FR 7220895A FR 2141815 B3 FR2141815 B3 FR 2141815B3
Authority
FR
France
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
Application number
FR7220895A
Other versions
FR2141815A1 (fr
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of FR2141815A1 publication Critical patent/FR2141815A1/fr
Application granted granted Critical
Publication of FR2141815B3 publication Critical patent/FR2141815B3/fr
Expired 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06E—OPTICAL COMPUTING DEVICES; COMPUTING DEVICES USING OTHER RADIATIONS WITH SIMILAR PROPERTIES
    • G06E3/00—Devices not provided for in group G06E1/00, e.g. for processing analogue or hybrid data
    • G06E3/001—Analogue devices in which mathematical operations are carried out with the aid of optical or electro-optical elements
    • 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)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Nonlinear Science (AREA)
  • Image Processing (AREA)
  • Image Analysis (AREA)
FR7220895A 1971-06-12 1972-06-09 Expired FR2141815B3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7108091A NL7108091A (fr) 1971-06-12 1971-06-12

Publications (2)

Publication Number Publication Date
FR2141815A1 FR2141815A1 (fr) 1973-01-26
FR2141815B3 true FR2141815B3 (fr) 1975-08-08

Family

ID=19813371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7220895A Expired FR2141815B3 (fr) 1971-06-12 1972-06-09

Country Status (5)

Country Link
BE (1) BE784751A (fr)
DE (1) DE2226260A1 (fr)
FR (1) FR2141815B3 (fr)
GB (1) GB1394744A (fr)
NL (1) NL7108091A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2297432A1 (fr) * 1975-01-09 1976-08-06 Fleuret Jacques Perfectionnements aux dispositifs de traitement d'images optiques
US4504859A (en) * 1983-01-13 1985-03-12 John K. Grady Multiple X-ray image scanners
IL115166A (en) * 1991-04-30 1997-02-18 Scitex Corp Ltd Apparatus and method for descreening

Also Published As

Publication number Publication date
NL7108091A (fr) 1972-12-14
GB1394744A (en) 1975-05-21
BE784751A (fr) 1972-12-12
FR2141815A1 (fr) 1973-01-26
DE2226260A1 (de) 1972-12-21

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Legal Events

Date Code Title Description
ST Notification of lapse