Optical processor using an original display having pixels with a

Details Optical processor using an original display having pixels with a Optical processor using an original display having pixels with a

1995-04-05

1997-10-07

Boudreau, Leo

Image analysis

Image transformation or preprocessing

Walsh, hough, or hadamard transform

382211, 382212, 359559, G06K 936, G06K 976, G06F 15332

Patent

active

056756704

ABSTRACT:
A optical processor facilitates the alignment between an original image and transformation patterns, thus improving the operation accuracy, and, if a fixed transmission mask is to be used, facilitates the fabrication of the fixed transmission mask. The optical processor includes an original image display to display an original image and a pattern display to display the patterns for a transformation on the original image displayed on the original image display. In the optical processor, the original image display is os made as to have pixels with a smaller aperture ratio than that of the pixels of the pattern display.

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patent: 5274716 (1993-12-01), Mitsuoka et al.
patent: 5537492 (1996-07-01), Nakajima et al.
A. Akiba, et al., "Fundamental Study on a Microoptic . . .", Optics (Kougaku); pp. 507 (43) -513 (49); May 20, 1991.
K. Hamanaka, et al., "Parallel Processing Using Microlens Arrays", pp. 59-64, 1991.
K. Hamanaka, et al., "Planar Microlens Array . . . "; Proceedings of 6th Meeting on Lightwave Sensing Technology; pp. 107-114.
I. Glaser, "Noncoherent Parallel Optical . . . ", Optics Letters; pp. 449-451; Jun. 23, 1980.
K. Hamanaka, et al., "Multiple Imaging and Multiple . . . ", Applied Optics; pp. 4064-4070; Oct. 1, 1990.

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