NDLI: Haptic visualization of bathymetric data

Content Provider	IEEE Xplore Digital Library
Author	Evreinova, T.V. Evreinov, G. Raisamo, R.
Copyright Year	2012
Description	Author affiliation: TAUCHI, School of Information Sciences, University of Tampere, Finland (Evreinova, T.V.; Evreinov, G.; Raisamo, R.)
Abstract	Visualization of water depth in geographical maps is limited by contour line density and by human ability to distinguish a subtle difference of the color gradient at a specific map scale. We were interested in whether it is it possible to increase the accuracy of subjective assessment of the bathymetric information coded by color intensity when visual observation would be complemented with haptic feedback presented as a function of the water depth. This paper describes the results of an evaluation of the new interaction technique that has potential to increase the estimation accuracy of color-coded information presented in a two-dimensional space of a topographic map. In particular, it was demonstrated that untrained subjects could accurately navigate between two geographic locations on the map of the lake by providing the necessary depth when values of the color intensity were associated with haptic feedback presented as a function of the lake floor. A comparative evaluation of the accuracy of navigation was carried out visually, using a regular mouse, and instrumentally with the StickGrip haptic device. The accuracy of navigation with the StickGrip haptic device appears to be higher by 14.25% to 23.5% in a range of bathymetric data of 40–140 m. We confirmed that a kinesthetic sense of distance to the surface of interaction (tablet) and self-perception of the finger joint-angle positions enhance the accuracy in distinguishing the color intensity of the digital map. The new mobile technique can be used as an alternative to the earlier non-mobile force-feedback devices for interaction with geospatial data.
Starting Page	359
Ending Page	364
File Size	920130
Page Count	6
File Format	PDF
ISBN	9781467308083
e-ISBN	9781467308090
e-ISBN	9781467308076
DOI	10.1109/HAPTIC.2012.6183815
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-03-04
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Haptic interfaces Navigation Image color analysis Visualization Accuracy Mice Correlation haptic feedback geovisualization data exploration human-computer interaction virtual environments
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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