Title :
Real-time measurement of corner position in binary images
Author :
Gaiarsa, Andrew E. ; Capson, David W.
Author_Institution :
Bell-Northern Res., Nepean, Ont., Canada
fDate :
8/1/1994 12:00:00 AM
Abstract :
The design and testing of an efficient method for measurement of the location of corners of binary regions in digital images is described. From a single perspective image, the image coordinates of corner points are obtained from moments and intersection points accumulated within specified windows. Corner-point coordinates may then be used in further processing such as inverse photogrammetric solutions to determine 3D position. A video-processing board based on a TMS 320C25 DSP chip has been developed to process the image windows. Together with an 80386-based single-board computer, object corner location is achieved at the standard RS-170 television field rate of 60 Hz
Keywords :
computer vision; edge detection; image processing equipment; position measurement; real-time systems; 3D position; 60 Hz; 80386-based single-board computer; RS-170 television field rate; TMS 320C25 DSP chip; binary images; binary regions; corner position; corner-point coordinates; design; digital images; image coordinates; image windows; intersection points; inverse photogrammetric solutions; moments; object corner location; real-time measurement; robot guidance; testing; video tracking; video-processing board; workpiece location; Automotive engineering; Biomedical measurements; Cameras; Computer aided manufacturing; Digital images; Digital signal processing chips; Position measurement; Robot kinematics; Robotic assembly; Testing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
