Fuzzy clustering in vision recognition applied in NAVI

Nagarajan, R. and Sazali Yaacob and Sainarayanan, Gopala (2002) Fuzzy clustering in vision recognition applied in NAVI. In: 21st International Conference of the North American Fuzzy Information Processing Society - NAFIPS, 27-29 June 2002, New Orlens, Los Angeles.

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In this paper a system for navigation assistance for visually impaired (NAVI) is presented. The system includes a single board processing system (UPS), vision sensor mounted headgear and stereo earphones. The image of environment is captured by the vision sensor. The image is then processed by a novel real time image processing methodology using the fuzzy clustering algorithm. The proposed methodology incorporates certain human vision properties for clear representation of the environment. The image processed is mapped to a stereo acoustic pattern and transferred to the user's earphones. The sound produced varies with the gray value and orientation of the obstacle in front. Blind individuals are trained with NAVI and tested for obstacle identification. Suggestions from the blind volunteers regarding pleasantness and discrimination of sound pattern were also incorporated in the prototype. Certain improvements for faster convergence of clustering are also considered.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keyword: blind person , fuzzy clustering , gray value , navigation assistance , real time system , stereo acoustic pattern , stereo earphones , vision sensor , visually impaired person
Subjects: Q Science > QA Mathematics > QA1-939 Mathematics > QA71-90 Instruments and machines > QA75.5-76.95 Electronic computers. Computer science
Department: SCHOOL > School of Engineering and Information Technology
Depositing User: ADMIN ADMIN
Date Deposited: 23 Feb 2011 17:33
Last Modified: 10 Sep 2014 11:56
URI: https://eprints.ums.edu.my/id/eprint/1861

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