A Study on Image Processing for Action Assistance of Visually Impaired Humans Using a Camera Equipped Cellular Phone

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  • TANAKA Nanae
    Graduate School of Environmental and Information Studies, Musashi Institute of Technology
  • OKUDAIRA Masashi
    Faculty of Environmental and Information Studies, Musashi Institute of Technology

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Other Title
  • 携帯カメラを用いた画像処理による視覚障碍者行動支援に関する一検討(ITS画像処理,映像メディア及び一般)
  • 携帯カメラを用いた画像処理による視覚障碍者行動支援に関する一検討
  • ケイタイ カメラ オ モチイタ ガゾウ ショリ ニ ヨル シカクショウガイシャ コウドウ シエン ニ カンスル イチ ケントウ

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Abstract

This paper proposes a guidance method of positions and directions of textured pavement blocks on a cellular phone. Concerning image processing and navigation, low cost algorithm and easy-to-follow voice guidance are adopted. A hyperplane that discriminates pixels of the blocks and others are determined with Support Vector Machine in advance. On the cellular phone, first, discrimination of pixels in each 3×3-divided region of a photo is carried on using the hyperplane. Then, based on connection patterns of block-existence regions, degenerated navigation patterns for humans are decided. Experimental results with over 90 images show the effectiveness of the proposed method for standard images. It takes about three seconds for image processing.

Journal

  • ITE Technical Report

    ITE Technical Report 33.6 (0), 173-176, 2009

    The Institute of Image Information and Television Engineers

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