| dc.description.abstract | The issue of visual impairment or blindness is faced worldwide. According to statistics
of the World Health Organization (WHO), globally, at least 2.2 billion people have a
vision impairment or blindness, of whom at least 1 billion are blind. In terms of regional
differences, the prevalence of vision impairment in low- and middle-income regions is
four times higher than in high-income regions. Blind people generally have to rely on
white canes, guide dogs, screen-reading software, magnifiers, and glasses to assist them
for mobility, however, to help the blind people the visual world has to be transformed
into the audio world with the potential to inform them about objects as well as their spatial
locations. | en_US |
