Spatial Navigation and Visual Accessibility

1. Spatial Navigation

Legge, G.E., Gage, R., Baek, Y., & Bochsler, T.M. (2016). Indoor spatial updating with reduced visual information. PLoS ONE, 11(3): e0150708. (article) (PDF version)

Legge, G.E., Beckmann, P.J., Tjan, B.S., Havey, G., Kramer, K., Rolkosky, D., Gage, R., Chen, M., Puchakayala, S. & Rangarajan, A. (2013). Indoor navigation by people with visual impairment using a digital sign system. PLoS ONE, 8(10), e76783. (article) (PDF version)

Kalia, A.A., Schrater, P.R. & Legge, G.E. (2013). Combining path integration and remembered landmarks when navigating without vision. PLoS ONE, 8(9), E72170. (article) (PDF version)

Legge, G.E. (2013). Driving with central visual-field loss. JAMA Ophthalmology,131(3), 393-395. DOI: 10.1001 /jamaophthalmol.2013.1974 (article)

Giudice, N.A., Bakdash, J.,  Legge, G.E. & Roy, R. (2010). Spatial learning and navigation using a virtual verbal display. ACM Transactions on Applied Perception, 7, 3:1 – 3:19. (article) (PDF version)

Kalia, A.A., Legge, G.E., Roy ,R. & Ogale, A. (2010). Assessment of indoor route finding technology for visually-impaired people. Journal of Visual Impairment and Blindness, 104, 135-147. (article) (PDF version)

Giudice, N.A. & Legge, G.E. (2008). Blind navigation and the role of technology.  In The Engineering Handbook of Smart Technology for Aging, Disability and Independence, A. Helal, M. Mokhtari and B. Abdulrazak, Editors, John Wiley & Sons. ISBN 978-0-471711551, Computer Engineering Series. (article)

Kalia, A.A., Legge, G.E. & Giudice, N.A. (2008). Learning building layouts with non-geometric visual information: The effects of visual impairment and age. Perception 37, 1677-1699. (article)

Giudice, N.A., Bakdash, J., & Legge, G.E. (2007). Wayfinding with words: spatial learning and navigation using dynamically updated verbal descriptions. Psychological Research. 71: 347-358. (article) 

Kallie, C.S., Schrater, P.R., & Legge, G.E. (2007). Variability in Stepping Direction Explains the Veering Behavior of Blind Walkers. Journal of Experimental Psychology: Human Perception and Performance . 33(1), 183-200. (article) (PDF version)

Stankiewicz, B.J., Legge, G.E., Mansfield , J.S., & Schlicht, E.J. (2006). Lost in virtual space: studies in human and ideal spatial navigation. Journal of Experimental Psychology: Human Perception and Performance, 32 , 688-704. (article) 

Mason, S.J., Legge, G.E. & Kallie, C.S. (2005). Variability in the length and frequency of steps of sighted and visually impaired walkers. Journal of Visual Impairment & Blindness, 99, 741-754. (article) (PDF version)

Tjan, B.S., Beckmann, P.J., Roy, R., Giudice, N., & Legge, G.E. (2005). Digital sign system for indoor wayfinding for the visually impaired. Computer Vision Applications for the Visually Impaired (CVAVI05) Proceedings of a Workshop, part of Computer Vision and Pattern Recognition (CVPR'05). San Diego, CA. (article)

2. Designing Visually Accessible Spaces

Legge, G.E. (2014). Prentice Medal Lecture 2013: Visual accessibility: A challenge for low-vision research. Optometry & Vision Science, 91(7), 696-706. (article) (PDF version)

Bochsler, T.M., Legge, G.E., Gage, R. & Kallie C.S. (2013). Recognition of ramps and steps by people with low vision. Investigative Ophthalmology & Visual Science, 54(1), 288-294. (article) (PDF version)

Kallie, C.S., Legge, G.E. & Yu. D. (2012). Identification and detection of simple 3D objects with severely blurred vision. Investigative Ophthalmology & Visual Science, 53(13), 7997-8005. (article) (PDF version)

Bochsler, T.M., Legg, G.E., Kallie, C.S. & Gage, R. (2012). Seeing steps and ramps with simulated low acuity: Impact of texture and locomotion. Optometry & Vision Science, 89(9), E1299-1307. (article) (PDF version)

Legge, G.E., Yu, D., Kallie, C.S., Bochsler, T.M. & Gage, R. (2010). Visual accessibility of ramps and steps. Journal of Vision, 10(11): 8, 1-19. (article) (PDF version)

3. 3D Depth and Direction

Jobling, J.T., Mansfield, J.S., Legge, G.E., & Menge, M.H. (1997). Motion parallax: Effects of blur, contrast, and field size in normal and low vision. Perception, 26, 1529-1538. (article)

Mansfield, J.S. & Legge, G.E. (1997). Binocular visual direction, the cyclopean eye, and vergence: Reply to Banks, van Ee and Backus. Vision Research, 37, 1610-1613. (article)

Mansfield, J.S. & Legge, G.E. (1996). Binocular computation of visual direction. Vision Research, 36, 27-41. (article) (PDF version)

McKee, S.P., Bravo, M.J., Smallman, H.S., & Legge, G.E. (1995). The "uniqueness constraint" and binocular masking. Perception , 24, 49-65. (article)

Zimmerman, G.L., Legge, G.E., & Cavanagh, P. (1995). Pictorial depth cues: A new slant. Journal of the Optical Society of America, A12, 17-26. (article)

McKee, S.P., Bravo, M.J., Taylor, D.G., & Legge, G.E. (1994). Stereo matching precedes dichoptic masking. Vision Research, 34, 1047-1060. (article)

Legge, G.E. & Gu, Y. (1989). Stereopsis and contrast. Vision Research 29, 989-1004. (article)