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A new screen scanning system based on clustering screen objects

Pradipta Biswas (Computer Laboratory, University of Cambridge)
Peter Robinson (Computer Technology, Computer Laboratory, University of Cambridge)

Journal of Assistive Technologies

ISSN: 1754-9450

Article publication date: 1 September 2008

317

Abstract

Many physically challenged users cannot interact with a computer through a conventional keyboard and mouse. They may interact with a computer through one or two switches with the help of a scanning mechanism. In this paper we present a new scanning technique based on clustering screen objects and then compare it with two other scanning systems by using a simulator. The analysis shows that the best scanning system is a type of block scanning that divides the screen in four equal sized partitions for four iterations and then switches to eight‐directional scanning. However, with a more accurate target acquisition process, the cluster scanning technique is found to outperform other scanning systems.

Keywords

Citation

Biswas, P. and Robinson, P. (2008), "A new screen scanning system based on clustering screen objects", Journal of Assistive Technologies, Vol. 2 No. 3, pp. 24-31. https://doi.org/10.1108/17549450200800023

Publisher

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Emerald Group Publishing Limited

Copyright © 2008, Emerald Group Publishing Limited

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