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Development of an Audio-based Virtual Gaming Environment to Assist with Navigation Skills in the Blind
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Crosswalk Guidance System for the Blind.

Hojun Son, Divya Krishnagiri, V Swetha Jeganathan

    Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference
    |October 6, 2020
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    Summary
    This summary is machine-generated.

    This study developed a wearable goggle system to assist visually impaired individuals with street crossing. The system provides real-time verbal cues for safe navigation, enhancing mobility for blind pedestrians.

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    Area of Science:

    • Assistive technology
    • Human-computer interaction
    • Robotics

    Background:

    • Street crossing presents significant mobility challenges for visually impaired individuals, particularly in urban settings.
    • Existing solutions primarily focus on detecting crosswalks and signals, with limited consideration for pedestrian mobility during crossing.
    • There is a need for advanced systems to support safe and independent street crossing for the visually impaired.

    Purpose of the Study:

    • To develop and evaluate a wearable goggle system for guiding visually impaired pedestrians across streets.
    • To integrate real-time detection of crosswalk signals, path planning, and verbal guidance functionalities.
    • To assess the system's effectiveness and reliability in real-world outdoor crosswalk scenarios.

    Main Methods:

    • A commercially available wearable goggle system was programmed with algorithms for crosswalk signal detection and path planning.
    • The system was designed to provide real-time verbal guiding cues with semantic features for user navigation.
    • Verification testing included evaluating signal detection accuracy and conducting trials with visually impaired subjects.

    Main Results:

    • Crosswalk signal detection demonstrated reliability, though hyper-parameter tuning was sometimes necessary to minimize false positives.
    • The wearable system successfully guided visually impaired subjects across an outdoor crosswalk.
    • Testing confirmed the potential of the system to aid in independent street crossing.

    Conclusions:

    • The developed wearable goggle system offers a promising solution for enhancing the mobility and safety of visually impaired pedestrians.
    • Real-time guidance and path planning integrated into a wearable system can effectively support visually impaired individuals during street crossing.
    • Further refinement of detection algorithms may improve system performance in complex environments.