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Navigation, especially in unknown areas, remains a major problem for the visually impaired (VI). Over the past 50years, a number of electronic travel aids (ETAs) have been developed with the aim of improving the mobility of the VI. Despite the efforts, these systems are rarely used. Although the explanation is likely to be incomplete, it is possible to identify three important factors: (1) positioning...
Orientation and mobility are tremendous problems for Blind people. Assistive technologies based on Global Positioning System (GPS) could provide them with a remarkable autonomy. Unfortunately, GPS accuracy, Geographical Information System (GIS) data and map-matching techniques are adapted to vehicle navigation only, and fail in assisting pedestrian navigation, especially for the Blind. In this paper,...
This paper discusses some new suggestions for designing hardware vision systems that take inspiration from spike-based biological image processing. The key idea is to modify already existing Address Event Representation (AER) designs so that there is a periodic reset signal that can be generated every time some predefined proportion of "neurons" has emitted a spike. Each "neuron"...
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