full Paper - Nguyen Dang Binh

with the display, but such arrangements would probably have
improved both self-rated and measured performance.
7. Main conclusions.
There was a large spread in the judgments; for many questions
the whole 7-point scale was utilized. Thus there were
visitors who "not at all agreed" or "strongly disagreed" with
the positive statements, as well as visitors who "agreed
very much" or "Strongly agreed". It should be noted that
the present study was based on self-ratings of performance.
Their relations to performance measured with objective
methods are uncertain. Such measurements can provide both
better and worse results. However, it is quite evident that the
visitors in general found the experience of the haptic display
amusing. High mean judgments were also obtained for
questions about the instructiveness of the experience, and the
positive judgments are in majority concerning the questions
about "suggesting friends to visit" and "wanting similar devices
in other museums". On the other side, the improvements
suggested indicate that many visitors wanted to be
able to more fully utilize the capacities of the haptic sense,
especially to use larger parts of the hands. A haptic display
with suitable such possibilities can be expected to be more
satisfactory. This conclusion is strengthened by our own and
others’ research mentioned above indicating the effects of
constraints of the information in all present-day haptic displays.
Concerning the use of the haptic display for aesthetic
experience of objects of art it must be noted that aesthetic aspects
have not been covered in this study. The participants’
tasks were to judge the experience of physical properties of
the objects of art. A study of aesthetic aspects remains to be
done.
8. References
[1]. Bergamasco M., Le Musee del Formes Pures, 8th IEEE
International Workshop on Robot and Human Interaction,
RO-MAN 99, September 27-29 1999, Pisa, Italy.
[2]. PURE-FORM. The MPF in Museums, Deliverable 14.
2004. PERCRO, Scuola Superiore Sant’Anna, Pisa, Italy.
[3]. G. Jansson & L. Monaci, Haptic identification of objects
with different numbers of fingers, in S. Ballesteros & M. A.
Heller (Eds.), Touch, Blindness and Neuroscience, 2004, pp.
209-219. Madrid: UNED Press.
[4]. G. Jansson & L. Monaci, Improvement of identification
of objects with a haptic display: Increasing the information
at each contact point is more efficient than increasing the
number of contact areas Report in progress.
[5]. S.J. Lederman, & R.L. Klatzky, R.L., Haptic identification
of common objects: Effects of constraining the manual
exploration process, Perception & Psychophysics, 2004,
Vol. 66, pp. 618-628.
Massimo Bergamasco / Application, Cultural heritage
78
[6]. A. Frisoli, F.Barbagli, S.-L. Wu, E. Ruffaldi, M Bergamasco
& K. Salisbury, Evaluation of multipoint contact interfaces
in haptic perception of shapes, 2004, Symposium of
Multipoint Interaction, IEEE ICRA2004, Proc.
[7]. P.K. Edman, Tactile graphics, 1992. New York: American
Foundation for the Blind.
[8]. G. Jansson, Can a haptic display rendering virtual 3D
objects be useful for people with visual impairment?, Journal
of Visual Impairment and Blindness, 1999, Vol. 93, pp. 426-
429.
[9]. G. Jansson, M. Bergamasco, & A. Frisoli, A new option
for the visually impaired to experience 3D art at museums:
Manual exploration of virtual copies, Visual Impairment Research,
2003, Vol. 5, pp. 1-12.
[10]. Cruz-Neira C., Sandin D., Defanti T.:Surround-screen
projection-based virtual reality:The design and implementation
of thecave. ACM Proceedings of SIGGRAPH
’93(1993), 135-142.
[11]. G. Jansson & A. Ivås, (2001). Can the efficiency of a
haptic display be increased by short-time practice in exploration?,
in G. Goos, J. Hartmanis & J. van Leeuwen (Series
Eds.) & S. Brewster & R. Murray-Smith (Vol. Eds.),
Lecture Notes in Computer Science: Vol. 2058. Haptic
Human-Computer Interaction, pp. 88-97. Heidelberg, Germany:
Springer.
[12]. Frisoli A, Simoncini F, Bergamasco M., Mechanical
Design of a Haptic Interface for the Hand" ", 2002
ASME International DETC- 27th Biennial Mechanisms and
Robotics Conference , Montreal- Canada, September 29 -
October 2, 2002
[13]. C.B. Zilles, J.K. Salisbury. A constraint-based godobject
method for haptic display, in Proceedings of IROS
1995.
[14]. E. Holmes & G. Jansson (1997), A touch tablet enhanced
with synthetic speech as a display for visually impaired
people’s reading of virtual maps, in CSUN 12th Annual
Conference on Technology for People with Disabilities
[3.5 diskette, file Holmes_e.txt]. Northridge, CA: California
State University, Northridge.
[15]. McLaughlin, M.L., Sukhatme, G., Shahabi, C. and
Jaskowiak, J., The Haptic Museum, Proceedings of the EVA
2000 Conference on Electronic Imaging and the Visual Arts,
Florence, Italy, March 2000.
[16]. Bergamasco M. , Frisoli A., Barbagli F.,The Museum
of Pure Form, Proc. of ICAR 2003, Coimbra-Portugal [17].
Buttolo P., Stewart P., Chen Y. "Force-Enabled Sculpting of
CAD Models", Ford Research Laboratory, ASME (American
Society of Mechanical Engineers) IMECE2000, International
Mechanical Engineering Congress and Exposition,
Orlando (Florida), November 2000.
c­ The Eurographics Association 2005.