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Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind
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Automatic generation of indoor navigation instructions for blind users using a user-centric graph.

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    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |January 9, 2015
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    This study presents a user-centric graph-based method for generating indoor navigation instructions for blind and visually impaired cane users, considering their cognitive abilities and mobility patterns. The approach ensures efficient and correct path generation, improving independent navigation.

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    Area of Science:

    • Human-computer interaction
    • Assistive technology
    • Robotics

    Background:

    • Indoor navigation for blind and visually impaired individuals presents unique challenges due to environmental complexity.
    • Existing robotic navigation systems do not adequately address the wayfinding abilities of visually impaired users.

    Purpose of the Study:

    • To develop a user-centric, graph-based solution for automatically generating indoor navigation instructions tailored for blind and visually impaired cane users.
    • To account for users' cognitive abilities and mobility patterns in the instruction generation process.

    Main Methods:

    • Introduction of principles for generating a user-centric graph representing indoor environments.
    • Development of an algorithm to automatically generate navigation instructions from the graph.
    • Testing the efficiency, correctness, and quality of the generated instructions.

    Main Results:

    • Successful demonstration of the instruction generation algorithm's efficiency.
    • Validation of the correctness of the generated paths.
    • Positive assessment of the quality of the navigation instructions.

    Conclusions:

    • The proposed user-centric graph-based approach effectively generates navigation instructions for blind and visually impaired cane users.
    • Blindfolded sighted users successfully navigated a multi-story building using the generated instructions, indicating the system's potential.
    • This method enhances independent mobility for visually impaired individuals in complex indoor environments.