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''"Is it as I left it?"- a computer vision aid for the blind

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2 Author(s)
Martinez-Alarcon, J.A. ; Dept. of Eng., Iberoamericana Univ., Mexico City, Mexico ; McKenna, S.J.

Blind people navigate safely through a familiar room based on strong expectations about the location of objects. If something has been moved, added or removed, it can present a difficulty and potentially a danger. This paper reports a novel prototype vision based monitoring application developed as part of research into supportive home environments. It uses ceiling-mounted cameras to monitor rooms in the home for significant changes and automatically generates spoken warnings when appropriate. Significant object level changes are detected and characterized based on fused region-level change detection modules. These use complementary pixel-level change detectors to obtain a degree of invariance to illumination changes. Results obtained using realistic video data are presented.

Published in:

Systems, Man and Cybernetics, 2004 IEEE International Conference on  (Volume:7 )

Date of Conference:

10-13 Oct. 2004

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