Lightweight Real-Time Object Detection and Navigation System for Visually Impaired Using Deep Learning

Samuel Simutwe¹* and Sesu Ovid²
¹UG Student, Department of Computer Science and Technology, DMI-St. Eugene University, Zambia
²Lecturer, Department of Computer Science and Technology, DMI-St. Eugene University, Zambia
*Corresponding Author Email: ssimutwe0@gmail.com
Keywords: Visual Impairment, Deep Learning, YOLOv8, TensorFlow Lite, Assistive Technology, Artificial Intelligence, Mobile Application, Accessibility, Navigation System

Abstract

Visual impairment continues to affect millions of individuals worldwide, limiting their independence and access to essential services. Existing assistive technologies often depend on expensive hardware, continuous internet connectivity, or fragmented functionalities that fail to address the diverse needs of visually impaired users.

This paper presents a lightweight real-time object detection and navigation system designed to assist blind and visually impaired individuals using deep learning technologies. The proposed Android-based application integrates YOLOv8 object detection, Google Gemini-powered scene understanding, optical character recognition, GPS-based emergency alert services, and a voice-driven user interface.

TensorFlow Lite is employed to enable efficient on-device inference for real-time obstacle detection while minimizing computational requirements. The system provides audio-based feedback, allowing users to navigate independently and safely.

Experimental evaluations demonstrate high object detection accuracy, low response latency, and improved user experience. The proposed solution offers an affordable and scalable assistive technology suitable for deployment in developing countries where accessibility resources remain limited.

Citation

Samuel Simutwe & Sesu Ovid. (2026)

Lightweight Real-Time Object Detection and Navigation System for Visually Impaired Using Deep Learning

International Journal of Current Science Research (IJCSR)

e-ISSN: 2454-5422

12(6): 2026: 1–7

License

© 2026 The Author(s). Published by Dr. BGR Publications .

The authors retain copyright of this article.

This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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