9 February 1989 Hexagonal Image Sampling: A Practical Proposition
Author Affiliations +
Proceedings Volume 1008, Expert Robots for Industrial Use; (1989) https://doi.org/10.1117/12.949123
Event: 1988 Cambridge Symposium on Advances in Intelligent Robotics Systems, 1988, Boston, MA, United States
Abstract
A case is made for the use of regular hexagonal sampling systems in robot vision applications. With such a sampling technique, neighbouring pixels reside in equidistant shells surrounding the central pixel and this leads to the simpler design and faster processing of local operators and to a reduced image storage requirement. Connectivity within the image is easily defined and the aliasing associated with vertical lines in the hexagonal system is not a problem for robot vision. With modern processors only a minimal time penalty is incurred in reporting results in a rectangular coordinate system, and a comparison between equivalent processing times for hexagonal and rectangular systems implemented on a popular processor has shown savings in excess of 40% for hexagonal edge detection operators. Little modification is required to TV frame grabber hardware to enable hexagonal digitisation.
© (1989) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Richard C. Staunton, Richard C. Staunton, } "Hexagonal Image Sampling: A Practical Proposition", Proc. SPIE 1008, Expert Robots for Industrial Use, (9 February 1989); doi: 10.1117/12.949123; https://doi.org/10.1117/12.949123
PROCEEDINGS
5 PAGES


SHARE
RELATED CONTENT

Real Time Visual Tracking Of Targets In Six Dimensions
Proceedings of SPIE (February 28 1990)
Some Experiments In Distributed Vision
Proceedings of SPIE (January 16 1985)
Intelligent vision process for robot manipulation
Proceedings of SPIE (January 31 1991)
Locating Mushrooms For Robotic Harvesting
Proceedings of SPIE (February 28 1990)

Back to Top