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The cluster scanning system

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Abstract

Users with severe physical impairment often use computers with one or two switches using a scanning system. Scanning is a technique of successively highlighting portions of screen. This paper presents a new scanning system that works through clustering screen objects. The system is initially calibrated through simulation and later validated through a user trial. Results show that it outperforms existing block scanning systems.

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Author information

Authors and Affiliations

  1. Department of Engineering, University of Cambridge, Cambridge, CB2 1PZ, UK

    Pradipta Biswas

  2. Computer Laboratory, University of Cambridge, Cambridge, CB3 0FD, UK

    Peter Robinson

Authors
  1. Pradipta Biswas
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  2. Peter Robinson
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Corresponding author

Correspondence to Pradipta Biswas.

Appendices

Appendix 1: The cluster scanning algorithm

Appendix 2: Measurement of hand strength

See Figs. 6, 7, 8.

Fig. 6
figure 6

a Measuring grip strength, b Measuring tip pinch strength, c Standard anatomical position

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Fig. 7
figure 7

Measuring ranges of motion of wrist. a Range of motion of wrist (Palm facing down), b Measuring radial deviation, c Measuring ulnar deviation

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Fig. 8
figure 8

Measuring ranges of motion of forearm. a Pronation, b Measuring pronation, c Supination, d Measuring supination

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Biswas, P., Robinson, P. The cluster scanning system. Univ Access Inf Soc 12, 237–245 (2013). https://doi.org/10.1007/s10209-012-0277-9

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  • DOI: https://doi.org/10.1007/s10209-012-0277-9

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