The Community for Technology Leaders
RSS Icon
Issue No.02 - Second (2012 vol.5)
pp: 120-130
Christopher T. Asque , University of East Anglia, Norwich
Andy M. Day , University of East Anglia, Norwich
Stephen D. Laycock , University of East Anglia, Norwich
Haptic assistance is the process of using force feedback to aid the operator in human-computer interaction (HCI). This may take the form of guiding the operator toward a target or assisting them in its selection. Haptic feedback has previously been investigated to assist motion-impaired computer users; however, limitations of previous 2 DOF haptic target acquisition techniques such as gravity wells and high-friction-targets have hampered progress. In this paper, two new haptic-assistive techniques are presented that utilize the 3 DOF capabilities of the Phantom Omni to produce assistance that is designed specifically for motion-impaired computer users. These include haptic cones and V-shaped funnels. To evaluate the effectiveness of the new haptic techniques, a series of point-and-click experiments were undertaken in parallel with cursor analysis to compare the levels of performance. The task required the operator to produce a predefined sentence on the Windows-On-Screen Keyboard. The results of the study prove that higher performance levels can be achieved using techniques that are less constricting than traditional assistance and without many of the drawbacks. Haptic cones produced the most significant results when compared to an unassisted interface with a mean improvement of 53 percent in the number of missed clicks and 145 percent improvement in throughput.
Haptic assistance, haptics, human-computer interaction.
Christopher T. Asque, Andy M. Day, Stephen D. Laycock, "Haptic-Assisted Target Acquisition in a Visual Point-and-Click Task for Computer Users with Motion Impairments", IEEE Transactions on Haptics, vol.5, no. 2, pp. 120-130, Second 2012, doi:10.1109/TOH.2011.55
[1] F. Hwang, P. Langdon, S. Keates, and J. Clarkson, "The Effect of Multiple Haptic Distractors on the Performance of Motion-Impaired Users," Proc. Sixth ERCIM Workshop, pp. 14-25, 2003.
[2] P. Langdon, F. Hwang, S. Keates, P. Clarkson, and P. Robinson, "Investigating Haptic Assistive Interfaces for Motion-Impaired Users: Force-Channels and Competitive Attractive-Basins," Proc. Eurohaptics Conf., pp. 122-127, 2002.
[3] S. Trewin, S. Keates, and K. Moffatt, "Developing Steady Clicks: A Method of Cursor Assistance for People with Motor Impairments," Proc. Int'l ACM SIGACCESS Conf. Computers and Accessibility (ASSETS '06), pp. 26-33, 2006.
[4] S. Keates, P. Langdon, J. Clarkson, and P. Robinson, "Investigating the Use of Force Feedback for Motion-Impaired Users," Proc. Sixth ERCIM Workshop, pp. 207-212, 2000.
[5] C. Gunn, W. Muller, and A. Datta, "Performance Improvement with Haptic Assistance: A Quantitative Assessment," World Haptics '09: Proc. Third Joint EuroHaptics Conf. and Symp. Haptic Interfaces for Virtual Environment and Teleoperator Systems, pp. 511-516, 2009.
[6] S. Wall, K. Paynter, A. Shillito, M. Wright, and S. Scali, "The Effect of Haptic Feedback and Stereo Graphics in a 3D Target Acquisition Task," Proc. Eurohaptics Conf., pp. 23-29, 2002.
[7] S. Keates, F. Hwang, P. Langdon, P. Clarkson, and P. Robinson, "The Use of Cursor Measures for Motion-Impaired Computer Users," Universal Access in the Information Soc., vol. 2, no. 1, pp. 18-29, 2002.
[8] I. MacKenzie, T. Kauppinen, and M. Silfverberg, "Accuracy Measures for Evaluating Computer Pointing Devices," Proc. SIGCHI Conf. Human Factors in Computing Systems (CHI '01), pp. 9-16, 2001.
[9] E. LoPresti, D. Brienza, and J. Angelo, "Evaluation of Computer Head Control Software to Compensate for Neck Movement Limitations," Proc. Conf. Universal Usability, pp. 147-148, 2000.
[10] H. Koester, E. LoPresti, and R. Simpson, "Toward Goldilocks' Pointing Device: Determining a 'Just Right' Gain Setting for Users with Physical Impairments," Proc. Int'l ACM SIGACCESS Conf. Computers and Accessibility, pp. 84-89, 2005.
[11] H. Koester, E. LoPresti, G. Ashlock, W. McMillan, P. Moore, and R. Simpson, "Compass: Software for Computer Skills Assessment," Proc. Int'l Conf. Technology and Persons with Disabilities (CSUN), 2003.
[12] J. Levine and M. Schappert, "A Mouse Adapter for People with Hand Tremor," IBM Systems J., vol. 44, no. 3, pp. 621-628, Aug. 2005.
[13] K. Gajos, J. Wobbrock, and D. Weld, "Improving the Performance of Motor-Impaired Users with Automatically-Generated, Ability-Based Interfaces," Proc. SIGCHI Conf. Human Factors in Computing Systems, pp. 1257-1266, 2008.
[14] B. Bayart, A. Pocheville, and A. Kheddar, "An Adaptive Haptic Guidance Software Module for i-Touch: Example through a Handwriting Teaching Simulation and a 3D Maze," Proc. Int'l Workshop Haptic Audio Visual Environments and Their Applications, p. 6, Oct. 2005.
[15] Y. Li, J. Huegel, V. Patoglu, and M. O'Malley, "Progressive Shared Control for Training in Virtual Environments," (World Haptics '09)—Proc. Third Joint EuroHaptics Conf. Symp. Haptic Interfaces for Virtual Environment and Teleoperator Systems, pp. 332-337, 2009.
[16] T. Miller and R. Zeleznik, "An Insidious Haptic Invasion: Adding Force Feedback to the X Desktop," Proc. 11th Ann. ACM Symp. User Interface Software and Technology, pp. 59-64, 1998.
[17] C. Ramstein, "A Multimodal User Interface System with Force Feedback and Physical Models," IFIP INTERACT '95: Proc. Int'l Conf. Human-Computer Interaction, pp. 157-162, 1995.
[18] I. Oakley, M. McGee, S. Brewster, and P. Gray, "Putting the Feel in 'Look and Feel'," Proc. SIGCHI Conf. Human Factors in Computing Systems, pp. 415-422, 2000.
[19] S. Brewster, "The Design of Sonically Enhanced Widgets," Interacting with Computers, vol. 11, no. 2, pp. 211-235, 1998.
[20] J. Wobbrock and K. Gajos, "A Comparison of Area Pointing and Goal Crossing for People with and without Motor Impairments," Proc. Int'l ACM SIGACCESS Conf. Computers and Accessibility, pp. 3-10, 2007.
[21] J. Wobbrock, J. Fogarty, and S. Liu, "The Angle Mouse: Target-Agnostic Dynamic Gain Adjustment Based on Angular Deviation," Proc. 27th Int'l Conf. Human Factors in Computing Systems, pp. 1401-1410, Apr. 2009.
[22] C. Mauri and T. Granollers, "On the Assessment of the Interaction Quality of Users with Cerebral Palsy," Proc. Second Int'l Conf. Availability, Reliability and Security, pp. 799-805, 2007.
[23] http:/, 2012.
[24] C. Zilles and J. Salisbury, "A Constraint Based God-Object Method for Haptic Display," Proc. IEEE Conf. Intelligent Robots and Systems, pp. 146-151, 1995.
[25] D. Lee and B. Schachter, "Two Algorithms for Constructing a Delaunay Triangulation," Int'l J. Parallel Programming, vol. 9, pp. 219-242, 1980.
[26] "ISO Ergonomic Requirements for Office Work with Visual Display Terminals (VDTs)," Part 9—Requirements for Non-Keyboard Input Devices, Int'l Organisation for Standardisation, 1998.
50 ms
(Ver 2.0)

Marketing Automation Platform Marketing Automation Tool