Title:
【発明の名称】光学的パタ-ン認識分類装置
Document Type and Number:
Japanese Patent JP3099203
Kind Code:
B2
Abstract:
PURPOSE:To provide the optical pattern recognition and classification device which can secure position steadiness with an extremely small number of input units. CONSTITUTION:The optical pattern recognition and classification device consists of at least a coherent light source, a 1st device 1 which displays a 1st pattern, a 1st Fourier transforming lens 21 which optically processes the complex amplitude distribution of luminous flux emitted by the 1st device 1 by Fourier transformation, a photodetecting element 41 which is arranged on the Fourier transformation surface of the 1st Fourier transforming lens 21 and detects the quantity of light transmitted through or reflected by a 2nd device 3, and a means 5 which receives the output of the photodetecting element 41 as the output of cross correlation between a 1st and a 2nd pattern, recognizes and classifies the patterns to be examined according to the cross-correlation output.
Inventors:
Yasuhiro Takemura
Toshiharu Takei
Toshiharu Takei
Application Number:
JP26069291A
Publication Date:
October 16, 2000
Filing Date:
October 08, 1991
Export Citation:
Assignee:
Sumitomo Osaka Cement Co., Ltd.
International Classes:
G02F3/00; G03H1/16; G06F9/44; G06F15/18; G06G7/19; G06N3/02; G02B27/42; G06N99/00; G06T7/00; (IPC1-7): G06T7/00; G02B27/42; G02F3/00; G03H1/16; G06F15/18; G06G7/19
Domestic Patent References:
| JP6446888A | ||||
| JP2293827A | ||||
| JP3225566A |
Attorney, Agent or Firm:
Yutaka Kuramochi