A Real-Time and Portable Bionic Eye Simulator

Horace Josh, Benedict Yong, Lindsay Kleeman

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

1 Citation (Scopus)


The Monash Vision Group is developing a bionic eye based on an implantable cortical visual prosthesis. The visual prosthesis aims to restore vision to blind people by electrical stimulation of the visual cortex of the brain. Due to the expected naivety of early prostheses, there is need for the development of innovative pre-processing of scene information in order to provide the most intuitive representation to user. However, in order to explore solutions to this need, prior to availability of functional implants, a simulator system is required. In this paper, we present a portable, real-time simulator and psychophysical evaluation platform that we have developed called the 'HatPack'. It makes use of current neurophysiological models of visuotopy and overcomes limitations of existing systems. Using the HatPack, which is compiled into a neat, wearable package, we have conducted preliminary psychophysics testing, which has shown the significance of available greyscale intensity levels and frame rates. A learning effect associated with repeated trials was also made evident.

Original languageEnglish
Title of host publicationBiomedical Engineering Systems and Technologies - 5th International Joint Conference, BIOSTEC 2012, Revised Selected Papers
Subtitle of host publicationVilamoura, Portugal; February 1-4, 2012
EditorsJoaquim Gabriel, Jan Schier, Sabine Van Huffel, Emmanuel Conchon, Carlos Correia, Ana Fred, Hugo Gamboa
Place of PublicationHeidelberg Germany
PublisherSpringer-Verlag London Ltd.
Number of pages17
ISBN (Electronic)9783642382567
ISBN (Print)9783642382550
Publication statusPublished - 2013
EventInternational Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC) 2012 - Vilamoura, Algarve, Portugal
Duration: 1 Feb 20124 Feb 2012
Conference number: 5th

Publication series

NameCommunications in Computer and Information Science
ISSN (Print)1865-0929


ConferenceInternational Joint Conference on Biomedical Engineering Systems and Technologies (BIOSTEC) 2012
Abbreviated titleBIOSTEC 2012
CityVilamoura, Algarve


  • Bionic vision
  • Phosphene
  • Portable simulator
  • Visual cortex
  • Visual prosthesis
  • Visuotopic mapping

Cite this