The Community for Technology Leaders
RSS Icon
Subscribe
Issue No.02 - Second (2012 vol.5)
pp: 170-176
K. K. Patel , Sch. of ICT, Ahmedabad Univ., Ahmedabad, India
S. Vij , Dept. of CE-IT-MCA, SVIT, Vadodara, India
ABSTRACT
The inability to navigate independently and interact with the wider world is one of the most significant handicaps that can be caused by blindness, second only to the inability to communicate through reading and writing. Many difficulties are encountered when visually impaired people (VIP) need to visit new and unknown places. Current speech or haptics technology does not provide a good solution. Our approach is to use treadmill-style locomotion interface, unconstrained walking plane (UWP), to allow a richer and more immersive form of virtual environment (VE) exploration to enable VIP to create cognitive maps efficiently and thereby to enhance their mobility. An experimental study is reported that tests design of UWP for both straight walking and turning motions. Two groups of participants, blind-folded-sighted and blind, learned spatial layout in VE using two exploration modes: guided (training phase) and unguided (testing phase). Spatial layout knowledge was assessed by asking participants to perform object-localization task and target-object task. Our results showed a significant decrease in time and helps taken to complete tasks, subjective workload, and errors in a post-training trial as compared to a partial-training trial. UWP has been found to significantly improve interaction with VE with visualizations such as spatial information.
INDEX TERMS
Navigation, Legged locomotion, Haptic interfaces, Training, Virtual environments, Safety, Computers, simulation systems for training., Assistive technology, cognitive maps, interactive techniques for learning, locomotion interface devices for learning
CITATION
K. K. Patel, S. Vij, "Spatial Learning Using Locomotion Interface to Virtual Environment", IEEE Transactions on Learning Technologies, vol.5, no. 2, pp. 170-176, Second 2012, doi:10.1109/TLT.2011.29
REFERENCES
[1] D. Clark-Carter, A. Heyes, and C. Howarth, "The Effect of Non-Visual Preview upon the Walking Speed of Visually Impaired People," Ergonomics, vol. 29, no. 12, pp. 1575-1581, 1986.
[2] O. Lahav and D. Mioduser, "A Blind Person's Cognitive Mapping of New Spaces Using a Haptic Virtual Environment," J. Research in Special Education Needs, vol. 3, no. 3, pp. 172-177, 2003.
[3] K.K. Patel and S.K. Vij, "Unconstrained Walking Plane to Virtual Environment for Spatial Learning by Visually Impaired," J. Ubiquitous Computing and Comm., Special Issue of Media Solutions That Improve Accessibility to Disabled Users, vol. 5, pp. 1-7, 2010.
[4] G. Burdea and P. Coiffet, Virtual Reality Technology. Wiley, 2003.
[5] P.J. Standen, D.J. Brown, and J.J. Cromby, "The Effective Use of Virtual Environments in the Education and Rehabilitation of Students with Intellectual Disabilities," British J. Educational Technology, vol. 32, no. 3, pp. 289-299, 2001.
[6] M. Schultheis and A. Rizzo, "The Application of Virtual Reality Technology for Rehabilitation," Rehabilitation Psychology, vol. 46, no. 3, pp. 296-311, 2001.
[7] S.K. Semwal and D.L. Evans-Kamp, "Virtual Environments for Visually Impaired," Proc. Second Int'l Conf. Virtual Worlds, 2000.
[8] P. Parente and G. Bishop, "BATS: The Blind Audio Tactile Mapping System," Proc. 41st Ann. ACM Southeast Conf. (ACMSE '03), 2003.
[9] J. Sanchez and N. Baloian, "Modelling Audio-Based Virtual Environments for Children with Visual Disabilities," Proc. World Conf. Educational Multimedia, Hypermedia and Telecomm., pp. 1652-1659, 2005.
[10] M. Simonnet, J.Y. Guinard, and J. Tisseau, "Preliminary Work for Vocal and Haptic Navigation Software for Blind Sailors," Int'l J. Disability and Human Development, vol. 52, no. 2, pp. 61-67, 2006.
[11] M. Rice et al., "Design Considerations for Haptic and Auditory Map Interfaces," Cartography and Geographic Information Science, vol. 32, no. 4, pp. 381-391, Oct. 2005.
[12] A.D. Luca, R. Mattone, and P.R. Giordano, "Acceleration-Level Control of the CyberCarpet," Proc. IEEE Int'l Conf. Robotics and Automation, pp. 2330-2335, 2007.
[13] H. Iwata and Y. Yoshida, "Path Reproduction Tests Using a Torus Treadmill," Presence: Teleoperators and Virtual Environments, vol. 8, no. 6, pp. 587-597, 1999.
[14] J.M. Hollerbach et al., "Design Specifications for the Second Generation Sarcos Treadport Locomotion Interface," Proc. ASME Dynamic Systems and Control Division, pp. 1293-1298, Nov. 2000.
[15] R.P. Darken, W.R. Cockayne, and D. Carmein, "The Omni-Directional Treadmill: A Locomotion Device for Virtual Worlds," Proc. 10th Ann. ACM Symp. User Interface Software and Technology (UIST '97), pp. 213-221, 1997.
[16] H. Iwata and T. Fuji, "Virtual Preambulator: A Novel Interface Device for Locomotion in Virtual Environment," Proc. IEEE Virtual Reality Ann. Int'l Symp., pp. 60-65, 1996.
[17] L. Sibert et al., "Initial Assessment of Human Performance Using the Gaiter Interaction Technique to Control Locomotion in Fully Immersive Virtual Environments," technical report, Naval Research Laboratory, 2004.
[18] H. Iwata et al., "CirculaFloor," IEEE Computer Graphics and Applications, vol. 25, no. 1, pp. 64-67, Jan. 2005.
[19] H. Iwata, H. Yano, and H. Tomioka, "Powered Shoes," Proc. SIGGRAPH, 2006.
[20] H. Iwata, H. Yano, and M. Tomiyoshi, "String Walker," Proc. SIGGRAPH, 2007.
[21] J. Kim, D. Gracanin, K. Matkovi, and F. Quek, "Finger Walking in Place (FWIP): A Traveling Technique in Virtual Environments," Proc. Ninth Int'l Symp. Smart Graphics, 2008.
35 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool