Psychophysics of prosthetic vision: III. Stochastic rendering, the phosphene image, and perception

Luke E. Hallum, Shaun L. Cloherty, David S. Taubman, Gregg J. Suaning, Nigel H. Lovell

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

6 Citations (Scopus)

Abstract

This paper examines the rendering of luminous spots ("phosphenes" ) in the visual field, and their stochastic positioning as a means of anti-aliasing the resulting spotty image ("phosphene image"). We derive an equation concerning the correlations of pairs of phosphenes comprising the phosphene image, and show the relationship to the statistics governing the stochastic positioning. We present some examples where stochastic rendering assists the veridical perception of textures, and argue for its superiority as cf. ordered rendering. Our preliminary results suggest that it may be perceptually effective to manufacture disordered arrays of stimulating electrodes for intraocular implantation.
Original languageEnglish
Title of host publication2006 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vols 1-15
Pages4323-4326
Number of pages4
Publication statusPublished - 2006
Externally publishedYes
EventInternational Conference of the IEEE Engineering in Medicine and Biology Society 2006 - Marriott Hotel, New York, United States of America
Duration: 31 Aug 20063 Sep 2006
Conference number: 28th

Conference

ConferenceInternational Conference of the IEEE Engineering in Medicine and Biology Society 2006
Abbreviated titleEMBC 2006
CountryUnited States of America
CityNew York
Period31/08/063/09/06
OtherInternational Conference of the IEEE Engineering in Medicine and Biology Society

Cite this

Hallum, L. E., Cloherty, S. L., Taubman, D. S., Suaning, G. J., & Lovell, N. H. (2006). Psychophysics of prosthetic vision: III. Stochastic rendering, the phosphene image, and perception. In 2006 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Vols 1-15 (pp. 4323-4326)