A Navigation System for the Visually Impaired: A Fusion of Vision and Depth Sensor

<table class="figure-group"><tr class="fig-image" id="a"><td><object data="https://static.hindawi.com/articles/abb/volume-2015/479857/figures/479857.fig.002a.svgz" name="479857.fig.002a" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(a) </b>Original image</td></tr><tr class="fig-image" id="b"><td><object data="https://static.hindawi.com/articles/abb/volume-2015/479857/figures/479857.fig.002b.svgz" name="479857.fig.002b" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(b) </b>Edges detected using Sobel edge detector</td></tr><tr class="fig-image" id="c"><td><object data="https://static.hindawi.com/articles/abb/volume-2015/479857/figures/479857.fig.002c.svgz" name="479857.fig.002c" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(c) </b>Corners detected using Harris &amp; Stephens detector</td></tr><tr class="fig-image" id="d"><td><object data="https://static.hindawi.com/articles/abb/volume-2015/479857/figures/479857.fig.002d.svgz" name="479857.fig.002d" type="image/svg+xml"></object></td></tr><tr class="fig-caption"><td><b>(d) </b>Blobs detected using SIFT detector</td></tr></table>

<div>Results of local image feature detectors that can be used to develop a vision-based navigation system.</div>

Applied Bionics and Biomechanics

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Figure 2

Figure 2: A Navigation System for the Visually Impaired: A Fusion of Vision and Depth Sensor 