Title :
Design of fiducials for accurate registration using machine vision
Author :
Bose, Chinmoy B. ; Amir, Israel
Author_Institution :
AT&T Bell Lab., Murray Hill, NJ, USA
fDate :
12/1/1990 12:00:00 AM
Abstract :
The effect of the shape and size of a standard feature (fiducial) on the positional accuracy of the centroid in machine-vision applications is studied. It is shown that a circular fiducial provides superior subpixel registration accuracy among the fiducial shapes typically used today
Keywords :
computer vision; computerised pattern recognition; centroid; fiducials; machine vision; shape; size; standard feature; subpixel registration accuracy; Automatic optical inspection; Ceramics; Computer errors; Correlation; Image resolution; Interpolation; Machine vision; Manufacturing automation; Printed circuits; Shape;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
