• 39th CSUN Assistive Technology Conference - March 18-22, 2024 at the Anaheim Marriott

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39th Annual CSUN Assistive Technology Conference Has Concluded

A Framework for the Outdoor Wayfinding of Visually Impaired

Date & Time
Tuesday, March 19, 2024 - 11:20 AM PDT  
Platinum 1  

Wayfinding has been a critical component of self-sufficiency for people with disabilities. People with vision impairments still struggle with wayfinding, regardless of whether they are indoors or outdoors. Recent developments in satellite technology for outdoor areas (e.g., GPS) and the prevalence of smartphones enable precise tools for wayfinding and means to be used. However, numerous outdoor premises remain, such as sidewalks and office buildings, in and around university campuses, where there is limited (or sometimes non-existent) efficiency of satellite-based systems such as global positioning systems (GPS). Even in places with decent GPS coverage, the precision is typically insufficient for fine-grained pedestrian navigation. As such, this work emphasizes the need for auxiliary outdoor wayfinding tools for people with vision impairments through a user study and quantitative study of GPS accuracy in outdoor environments. This work presents PathLookup, a deep learning-based image localization framework for reliably giving path advancement information for outdoor wayfinding. PathLookup was very accurate and efficient during testing, indicating that it could be a helpful tool for future inclusion in outdoor wayfinding systems.

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  • Higher Education
  • Disability Specific
  • Research & Development
Audience Level
Session Summary (Abstract)
This work presents the need for an auxiliary tool to assist visually impaired persons in outdoor wayfinding. As such, a computer vision-based framework will be presented that effectively provides path advancement information to a destination.  
Primary Topic
Blind/Low Vision  
Secondary Topics
  • Artificial Intelligence (AI) & Machine Learning (ML)
  • Independent Living
  • Mobility
Session Type
Journal Track  


  • Uddipan Das
    The College of New Jersey

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