DD122146A1 - - Google Patents

Info

Publication number
DD122146A1
DD122146A1 DD188659A DD18865975A DD122146A1 DD 122146 A1 DD122146 A1 DD 122146A1 DD 188659 A DD188659 A DD 188659A DD 18865975 A DD18865975 A DD 18865975A DD 122146 A1 DD122146 A1 DD 122146A1
Authority
DD
German Democratic Republic
Application number
DD188659A
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 filed Critical
Priority to DD188659A priority Critical patent/DD122146A1/xx
Publication of DD122146A1 publication Critical patent/DD122146A1/xx
Priority to DE19762643334 priority patent/DE2643334A1/en

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
    • 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)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Image Analysis (AREA)
DD188659A 1975-10-01 1975-10-01 DD122146A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DD188659A DD122146A1 (en) 1975-10-01 1975-10-01
DE19762643334 DE2643334A1 (en) 1975-10-01 1976-09-25 Optical filter for character recognition - with pattern based on weighted intensities of Fourier transformations to improve resolution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD188659A DD122146A1 (en) 1975-10-01 1975-10-01

Publications (1)

Publication Number Publication Date
DD122146A1 true DD122146A1 (en) 1976-09-12

Family

ID=5501876

Family Applications (1)

Application Number Title Priority Date Filing Date
DD188659A DD122146A1 (en) 1975-10-01 1975-10-01

Country Status (2)

Country Link
DD (1) DD122146A1 (en)
DE (1) DE2643334A1 (en)

Also Published As

Publication number Publication date
DE2643334A1 (en) 1977-04-14

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