NDLI: Tactile Graphics Rendering Using Three Laterotactile Drawing Primitives

Content Provider	IEEE Xplore Digital Library
Author	Levesque, V. Hayward, V.
Copyright Year	2008
Description	Author affiliation: McGill Univ., Montreal (Levesque, V.; Hayward, V.)
Abstract	This paper presents preliminary work towards the development and evaluation of a practical refreshable tactile graphics system for the display of tactile maps, diagrams and graphs for people with visual impairments. Refreshable tactile graphics were dynamically produced by laterally deforming the skin of a finger using the $STReSS^{2}$ tactile display. Tactile features were displayed over an 11x6 cm virtual surface by controlling the tactile sensations produced by the fingerpad-sized tactile display as it was moved on a planar carrier. Three tactile rendering methods were used to respectively produce virtual gratings, dots and vibrating patterns. These tactile features were used alone or in combination to display shapes and textures. The ability of the system to produce tactile graphics elements was evaluated in five experiments, each conducted with 10 sighted subjects. The first four evaluated the perception of simple shapes, grating orientations, and grating spatial frequencies. The fifth experiment combined these elements and showed that tactile icons composed of both vibrating contours and grated textures can be identified. The fifth experiment was repeated with 6 visually impaired subjects with results suggesting that similar performance should be expected from that user group.
Starting Page	429
Ending Page	436
File Size	1665131
Page Count	8
File Format	PDF
ISBN	9781424420056
DOI	10.1109/HAPTICS.2008.4479989
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rendering (computer graphics) Skin Computer graphics Gratings Shape Computer displays Printing Haptic interfaces Actuators Pins K.4.2 [Computers and Society]: Social Issues¿Assistive technologies for persons with disabilities H.5.2 [Information Interfaces and Presentation (e.g., HCI)]: User Interfaces¿Haptic I/O
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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