Active Hollow Four Quadrant Orientation Detector Array for Application to Pattern Recognition
Journal
IEEE Transactions on Electron Devices
Journal Volume
42
Journal Issue
7
Pages
1233-1239
Date Issued
1995
Author(s)
Lin, K.-C.
Abstract
The active hollow F_O_ur Q_U_adrant O_rientation D_etector (active hollow FOQUOD) two dimensional 8/spl times/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. >
Type
journal article