Research Article
A Navigation System for the Visually Impaired: A Fusion of Vision and Depth Sensor
Table 3
Obstacle detection rate and comparison of blind and blindfolded persons.
| | Blindfolded | Blind | Obstacle | Detection | Speed | Detection | Speed | | time (sec) | (m/sec) | time (sec) | (m/sec) |
| Wall (corridor) | 0.25 | 0.4 | 0.25 | 0.6 | Pillar (open square) | 0.3 | 0.3 | 0.3 | 0.5 | People (open square) | 0.28 | — | 0.25 | — | Noticeboard | 0.3 | 0.3 | 0.3 | 0.5 | Obstacles (lab) | 0.25 | 0.3 | 0.25 | 0.4 | No obstacle (open square) | 0.25 | 0.4 | 0.25 | 0.55 |
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