Role of object identification in sonification system for visually impaired

Nagarajan, R. and Sazali Yaacob and Sainarayanan , Gopala (2004) Role of object identification in sonification system for visually impaired. In: Conference on Convergent of Technologies for Asia-Pasific Region, 15-17 Oct. 2003 , Bangalore, India.

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The role of object identification in a sonification system for navigation assistance to the visually impaired (NAVI) is discussed. The developed system includes a single board processing system (SBPS), vision sensor mounted on headgear and stereo earphones. The vision sensor captures the vision information in front of the blind user. The captured image is processed to identify the object in the image. Object identification is achieved by a real time image processing methodology using fuzzy algorithms. The processed image is mapped onto stereo acoustic patterns and transferred to the stereo earphones in the system. Blind individuals were trained with NAVI system and tested for obstacle identification. Suggestions from the blind volunteers regarding the pleasantness and discrimination of the sound pattern were incorporated in the prototype. With object identification, the discrimination of object and background by sound is found to be easier compared to sound produced from the unprocessed image.

Item Type: Conference or Workshop Item (UNSPECIFIED)
Keyword: acoustic devices , fuzzy systems , handicapped aids , object recognition , sensory aids , video signal processing , visual perception
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1-2040 Engineering (General). Civil engineering (General) > TA1501-1820 Applied optics. Photonics
Department: SCHOOL > School of Engineering and Information Technology
Depositing User: ADMIN ADMIN
Date Deposited: 23 Feb 2011 09:20
Last Modified: 29 Dec 2014 16:13

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