VISUAL NAVIGATION FOR THE BLIND - Path and Obstacle Detection

J. José, J. M. H. du Buf, J. M. F. Rodrigues

Abstract

We present a real-time vision system to assist blind and visually impaired persons. This system complements the white cane, and it can be used both indoor and outdoor. It detects borders of paths and corridors, obstacles within the borders, and it provides guidance for centering and obstacle avoidance. Typical obstacles are backpacks, trash cans, trees, light poles, holes, branches, stones and other objects at a distance of 2 to 5 meters from the camera position. Walkable paths are detected by edges and an adapted Hough transform. Obstacles are detected by a combination of three algorithms: zero crossings of derivatives, histograms of binary edges, and Laws’ texture masks.

References

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Paper Citation


in Harvard Style

José J., Buf J. and Rodrigues J. (2012). VISUAL NAVIGATION FOR THE BLIND - Path and Obstacle Detection . In Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods - Volume 2: ICPRAM, ISBN 978-989-8425-99-7, pages 515-519. DOI: 10.5220/0003711405150519


in Bibtex Style

@conference{icpram12,
author={J. José and J. M. H. du Buf and J. M. F. Rodrigues},
title={VISUAL NAVIGATION FOR THE BLIND - Path and Obstacle Detection},
booktitle={Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods - Volume 2: ICPRAM,},
year={2012},
pages={515-519},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003711405150519},
isbn={978-989-8425-99-7},
}


in EndNote Style

TY - CONF
JO - Proceedings of the 1st International Conference on Pattern Recognition Applications and Methods - Volume 2: ICPRAM,
TI - VISUAL NAVIGATION FOR THE BLIND - Path and Obstacle Detection
SN - 978-989-8425-99-7
AU - José J.
AU - Buf J.
AU - Rodrigues J.
PY - 2012
SP - 515
EP - 519
DO - 10.5220/0003711405150519