An Experimental Investigation of Magnification Lens Offset and Its Impact
on Imagery Analysis
September 2004
Erika Darling, The MITRE Corporation
Chris Newbern, The MITRE Corporation
Nikhil Kalghatgi, The MITRE Corporation
Aaron Burgman, The MITRE Corporation
Kristine Recktenwald, The MITRE Corporation
ABSTRACT
A digital lens is a user interface mechanism that is a potential
solution to information management problems. We investigated
the use of digital lensing applied to imagery analysis. Participants
completed three different types of tasks (locate, follow, and
compare) using a magnification lens with three different degrees
of offset (aligned, adjacent, and docked) over a high-resolution
aerial photo. Although no lens offset mode was significantly
better than another, most participants preferred the adjacent mode
for the locate and compare tasks, and the docked mode for the
follow tasks. This paper describes the results of a user study of
magnification lenses and provides new insights into preferences of
and interactions with digital lensing.
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Additional Search Keywords
information visualization, imagery analysis,
magnification lens, lens interaction, usability study
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