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Computer vision holds great promise for helping persons with blindness or visual impairments (VI) to interpret and explore the visual world. To this end, it is worthwhile to assess the situation critically by understanding the actual needs of the VI population and which of these needs might be addressed by computer vision. This article reviews the types of assistive technology application areas that have already been developed for VI, and the possible roles that computer vision can play indoi:10.1145/2063176.2063200 pmid:22815563 pmcid:PMC3398697 fatcat:aa2wlsixkvh2xdi7qbv7t7cbdy