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Related Experiment Video

Updated: Jun 11, 2026

Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification
07:47

Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification

Published on: February 14, 2018

Assisting the blind to reach daily objects using smart glasses.

Aditya Singh1,2, Meet Anil Bhanushali1,2, Jingwu Luo1,2

  • 1Schepens Eye Research Institute of Mass Eye & Ear, Boston MA.

Displays
|June 10, 2026
PubMed
Summary

This study introduces smart glasses that help blind and visually impaired individuals (BVI) find objects using directional audio cues. The novel assistive technology significantly reduces object-finding time compared to existing solutions.

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Area of Science:

  • Human-Computer Interaction
  • Assistive Technology
  • Computer Vision

Background:

  • Searching for objects is difficult for blind and visually impaired individuals (BVI).
  • Current large language models (LLMs) and vision language models (VLMs) offer scene descriptions but lack spatial interpretation for efficient object interaction.
  • General-purpose models are not optimized for conveying spatial information crucial for daily tasks.

Purpose of the Study:

  • To develop and evaluate a smart glass solution using open-vocabulary object detection for aiding BVI in searching and reaching for specific objects.
  • To provide hands-free, natural interaction with the environment for BVI.
  • To improve the efficiency and accuracy of object localization for BVI.

Main Methods:

  • Developed smart glasses processing video streams via local or connected devices with open-vocabulary object detection models.
Keywords:
activities of daily livingobject detectionopen vocabulary object detectionsmart glassesvision language modelwearable assistive technology

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Last Updated: Jun 11, 2026

Design and Evaluation of Smart Glasses for Food Intake and Physical Activity Classification
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Published on: February 14, 2018

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  • Implemented a hands-free interface allowing verbal custom search prompts and head-based scanning.
  • Integrated stereo audio tones for horizontal and vertical directional cues to guide users to targets.
  • Conducted a pilot study with 5 blindfolded participants comparing the smart glasses solution against Meta glasses with built-in AI.

    • Main Results:

    • The smart glasses solution achieved an average task time of 53 seconds, significantly faster than Meta glasses (126 seconds, p<0.001).
    • Demonstrated successful assistance for a blind user in a grocery shopping scenario.
    • Validated the effectiveness of active orientation guidance in improving object interaction for BVI.

    Conclusions:

    • The developed smart glasses provide effective active orientation guidance, a feature often missing in current VLMs.
    • This solution significantly enhances the ability of BVI to interact with their surroundings, specifically for reaching objects and destinations.
    • The technology shows promise for improving independence and daily living for individuals with visual impairments.