Active hollow four quadrant orientation detector array for application to pattern recognition

Author

Lin, Kang-Cheng ; Lee, Si-Chen

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

42

Issue

7

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

1233

Lastpage

1239

Abstract

The active hollow F_O_ur Q_U_adrant O_rientation D_etector (active hollow FOQUOD) two dimensional 8×8 array using amorphous silicon material deposited on a silicon substrate has been fabricated successfully. This array can extract the contrast edges and the edge orientations of the test patterns with an accuracy within 7 degrees. Since the measured patterns are consistent with the expected results, part of the traditional data processing steps using software may be replaced by this hardware sensor array. A simpler algorithm for pattern recognition can then be developed

Keywords

amorphous semiconductors; edge detection; elemental semiconductors; hydrogen; image sensors; neural chips; silicon; active hollow four quadrant orientation detector; amorphous silicon material; contrast edges; edge orientations; hardware sensor array; neural network array; pattern recognition; test patterns; two dimensional 8×8 array; Amorphous silicon; Brightness; Circuits; Detectors; Hardware; Image edge detection; Pattern recognition; Sensor arrays; Signal processing algorithms; Visual system;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/16.391204

Filename

391204