Title:
【発明の名称】光学的相関処理装置
Document Type and Number:
Japanese Patent JPH0830830
Kind Code:
B2
Abstract:
The present invention provides an optical correlator for identifying an object automatically from among two dimensional images. The correlator comprises means (2 to 6) for generating coherent images representing two sets of pictorial information to be compared, and means (3 to 15) for generating Fourier transformation images from the coherent images for use for correlation. The means for generating the Fourier transformation images comprise means (12) for generating a phase conjugate wave formation in respect of each of the coherent images, means (3 to 11) for deriving from the phase conjugate wave formations pictorial patterns representing respectively the sum of and the difference between the two sets of pictorial information, and means (14, 15) for transforming the pictorial patterns into respective Fourier transformation images.
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Inventors:
TAKEI TOSHIJI
MITSUOKA YASUYUKI
MITSUOKA YASUYUKI
Application Number:
JP22767388A
Publication Date:
March 27, 1996
Filing Date:
September 07, 1988
Export Citation:
Assignee:
SEIKO INSTR & ELECTRONICS
International Classes:
G02B27/46; G02F3/00; G06E3/00; G06T7/00; (IPC1-7): G02F3/00; G06E3/00
Attorney, Agent or Firm:
Keinosuke Hayashi