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A. J. McClumpha

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Publications by A. J. McClumpha (bibliography)

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1997
 
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MacLeod, I. S., McClumpha, A. J. and Koritsas, E. (1997): Understanding HCI Requirements: Expertise and Assistance to Imagery Analysis. In: Smith, Michael J., Salvendy, Gavriel and Koubek, Richard J. (eds.) HCI International 1997 - Proceedings of the Seventh International Conference on Human-Computer Interaction - Volume 2 August 24-29, 1997, San Francisco, California, USA. pp. 559-562.

1991
 
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McClumpha, A. J., James, M., Green, R. G. and Belyavin, A. J. (1991): Pilots' Attitudes to Cockpit Automation. In: Proceedings of the Human Factors Society 35th Annual Meeting 1991. pp. 107-111.

1989
 
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McClumpha, A. J. and Selcon, S. J. (1989): Objective and Subjective Assessment of Image Recognition. In: Proceedings of the Human Factors Society 33rd Annual Meeting 1989. pp. 1505-1509.

This paper describes two studies which used objective and subjective assessments to quantify the effect of target degradation on observers' recognition ability. 'Noise' inherent in a digital infra-red line scan system can result in a static line-to-line variation (pixel jitter) over the displayed imagery. The amount of target degradation is dependent upon both the amplitude and frequency of the pixel jitter. The results showed that, firstly, if an image is affected by pixel jitter, even with an amplitude of only 1 pixels, a significant interference in target recognition performance occurs. Secondly, the results from the subjective scaling mirrored closely the error data and therefore imply that this rating scale may have widespread utility in target acquisition studies. Finally, the effect of pixel jitter appears to be robust. The effect was found not to be specific to a particular type of imagery and is, therefore, likely to generalize to other types of target and other imaging systems. The implication of these results for user-system specification is discussed.

© All rights reserved McClumpha and Selcon and/or Human Factors Society

 
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Changes to this page (author)

05 Jun 2009: Modified
26 Jun 2007: Modified
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URL: http://www.interaction-design.org/references/authors/a__j__mcclumpha.html
Jun 20

...that strange new zone between medium and message. That zone we call the interface

-- Steven Johnson, 1997

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Latest books

The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad

 
Start reading

The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

Help us help you!