ABSTRACT
Despite growing awareness of the accessibility issues surrounding touch screen use by blind people, designers still face challenges when creating accessible touch screen interfaces. One major stumbling block is a lack of understanding about how blind people actually use touch screens. We conducted two user studies that compared how blind people and sighted people use touch screen gestures. First, we conducted a gesture elicitation study in which 10 blind and 10 sighted people invented gestures to perform common computing tasks on a tablet PC. We found that blind people have different gesture preferences than sighted people, including preferences for edge-based gestures and gestures that involve tapping virtual keys on a keyboard. Second, we conducted a performance study in which the same participants performed a set of reference gestures. We found significant differences in the speed, size, and shape of gestures performed by blind people versus those performed by sighted people. Our results suggest new design guidelines for accessible touch screen interfaces.
- Anthony, L. and Wobbrock, J. O. A lightweight multistroke recognizer for user interface prototypes. Proc. GI '10, Canadian Information Processing Society (2010), 245--252. Google ScholarDigital Library
- Baudel, T. and Beaudouin-Lafon, M. Charade: Remote control of objects using free-hand gestures. Communications of the ACM 36, 7 (1993), 28--35. Google ScholarDigital Library
- Baudisch, P. and Chu, G. Back-of-device interaction allows creating very small touch devices. Proc. CHI '09, ACM (2009), 1923--1932. Google ScholarDigital Library
- Bonner, M., Brudvik, J., Abowd, G. and Edwards, W. K. No-Look Notes: Accessible eyes-free multi-touch text entry. Proc. Pervasive '10, Springer (2010), 409--427. Google ScholarDigital Library
- Buxton, W., Foulds, R., Rosen, M., Scadden, L. and Shein, F. Human interface design and the handicapped user. SIGCHI Bulletin 17, 4 (1986), 291--297. Google ScholarDigital Library
- Buxton, W., Hill, R. and Rowley, P. Issues and techniques in touch-sensitive tablet input. Proc. SIGGRAPH '85, ACM (1985), 215--224. Google ScholarDigital Library
- Crew, S. Touch-screen gadgets alienate blind. Reuters, January 8, 2009.Google Scholar
- Crossan, A. and Brewster, S. Multimodal trajectory playback for teaching shape information and trajectories to visually impaired computer users. ACM TACCESS 1, 2 (2008), 1--34. Google ScholarDigital Library
- Epps, J., Lichman, S. and Wu, M. A study of hand shape use in tabletop gesture interaction. CHI '06 Extended Abstracts, ACM (2006), 748--753. Google ScholarDigital Library
- Goldreich, D. and Kanics, I. M. Tactile acuity is enhanced in blindness. Journal of Neuroscience 23, 8 (2003), 3439--3445.Google ScholarCross Ref
- Guerreiro, T., Lagoa, P., Nicolau, H., Gonalves, D. and Jorge, J. From tapping to touching: Making touch screens accessible to blind users. IEEE Multimedia 15, 4 (2008), 48--50. Google ScholarDigital Library
- Guimbretière, F., Stone, M. and Winograd, T. Fluid interaction with high-resolution wall-size displays. Proc. UIST '01, ACM (2001), 21--30. Google ScholarDigital Library
- Heller, M. A., Wilson, K., Steffen, H., Yoneyama, K. and Brackett, D. D. Superior haptic perceptual selectivity in late-blind and very-low-vision subjects. Perception 32, 4 (2003), 499--511.Google ScholarCross Ref
- Kamel, H. M. and Landay, J. A. A study of blind drawing practice: Creating graphical information without the visual channel. Proc. ASSETS '00, ACM (2000), 34--41. Google ScholarDigital Library
- Kane, S. K., Bigham, J. P. and Wobbrock, J. O. Slide Rule: Making mobile touch screens accessible to blind people using multi-touch interaction techniques. Proc. ASSETS '08, ACM (2008), 73--80. Google ScholarDigital Library
- Landau, S. and Wells, L. Merging tactile sensory input and audio data by means of the Talking Tactile Tablet. Proc. Eurohaptics '03, (2003), 414--418.Google Scholar
- Law, C. and Vanderheiden, G. The development of a simple, low cost set of universal access features for electronic devices. Proc. CUU '00, ACM (2000), 118. Google ScholarDigital Library
- Liu, J., Pinelle, D., Sallam, S., Subramanian, S. and Gutwin, C. TNT: Improved rotation and translation on digital tables. Proc. GI '06, Canadian Information Processing Society (2006), 25--32. Google ScholarDigital Library
- McGookin, D., Brewster, S. and Jiang, W. Investigating touchscreen accessibility for people with visual impairments. Proc. NordiCHI '08, ACM (2008), 298--307. Google ScholarDigital Library
- Morris, M. R., Wobbrock, J. O. and Wilson, A. D. Understanding users' preferences for surface gestures. Proc. GI '10, Canadian Information Processing Society (2010), 261--268. Google ScholarDigital Library
- Sadato, N., Pascual-Leone, A., Grafman, J., Ibanez, V., Deiber, M. P., Dold, G. and Hallett, M. Activation of the primary visual cortex by Braille reading in blind subjects. Nature 380, 6574 (1996), 526--528.Google ScholarCross Ref
- Sánchez, J. and Aguayo, F. Mobile messenger for the blind. Proc. ECRIM '06, Springer (2006), 369--385. Google ScholarDigital Library
- Sánchez, J. and Maureira, E. Subway mobility assistance tools for blind users. Proc. ECRIM '06, Springer (2006), 386--404. Google ScholarDigital Library
- Stößel, C., Wandke, H. and Blessing, L. Gestural interfaces for elderly users: Help or hindrance? Gesture in Embodied Communication and Human-Computer Interaction, Springer (2010), 269--280. Google ScholarDigital Library
- Tinwala, H. and MacKenzie, I. S. Eyes-free text entry with error correction on touchscreen mobile devices. Proc. NordiCHI '10, ACM (2010), 511--520. Google ScholarDigital Library
- Van Boven, R., Hamilton, R., Kauffman, T., Keenan, J. and Pascual-Leone, A. Tactile spatial resolution in blind Braille readers. Neurology, 54 (2000), 2230--2236.Google ScholarCross Ref
- Vanderheiden, G. C. Use of audio-haptic interface techniques to allow nonvisual access to touchscreen appliances. Proc. HFES 40, (1996), 1266.Google ScholarCross Ref
- Wobbrock, J. O., Morris, M. R. and Wilson, A. D. User-defined gestures for surface computing. Proc. CHI '09, ACM (2009), 1083--1092. Google ScholarDigital Library
- Yfantidis, G. and Evreinov, G. Adaptive blind interaction technique for touchscreens. Universal Access in the Information Society, 4 (2006), 328--337. Google ScholarDigital Library
- Zhai, S. and Kristensson, P. Shorthand writing on stylus keyboard. Proc. CHI '03, ACM (2003), 97--104. Google ScholarDigital Library
- Zhao, S., Dragicevic, P., Chignell, M., Balakrishnan, R. and Baudisch, P. EarPod: Eyes-free menu selection using touch input and reactive audio feedback. Proc. CHI '07, ACM (2007), 1395--1404. Google ScholarDigital Library
Index Terms
- Usable gestures for blind people: understanding preference and performance
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