Scheduled System Maintenance on May 29th, 2015:
IEEE Xplore will be upgraded between 11:00 AM and 10:00 PM EDT. During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Hardware for real-time image processing

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
McLlroy, C.D. ; Queen's University of Belfast, Department of Electrical and Electronic Engineering, Belfast, UK ; Linggard, R. ; Monteith, W.

The system described here is a real-time edge detector for use in image processing. The edge-detection algorithm is a 2 ¿¿ 2 Roberts product, thresholded with a function of the local average brightness. The hardware is designed to work at 10 MHz pixel rate, and will accommodate images of 512 ¿¿ 512 pixels at 25 frames/s with noninterlaced video, or of up to 512 ¿¿ 290 pixels with interlaced scanning. The hardware is pipelined and paralleled to achieve the required speed. The output from the system is a one-bit-per-pixel edge picture. This is transferred directly into the memory of the host computer for further processing.

Published in:

Computers and Digital Techniques, IEE Proceedings E  (Volume:131 ,  Issue: 6 )