A blind navigation guide model for obstacle avoidance using distance vision estimation based YOLO-V8n
Keywords:
YOLO-V8n, COCO dataset, Blind guide, DVE, WFEAbstract
Obstacle is an object positioned along a path of propagation with the potential to cause a collision and hence, an accident. Over the years, several papers have applied advanced computer vision techniques, particularly transfer learning algorithms, to solve this problem, but despite their success, in specific vision applications such as blind guide navigation systems, the model finds it difficult to distinguish between objects and obstacles recognized in the same video frame, hence attracting research attention. In this paper, the aim was to develop a blind navigation guide model for obstacle avoidance using distance vision estimation-based YOLO-V8n. To achieve this, an improved data model was developed using the MS COCO dataset and primary data collected from several indoor environments. Then, the YOLO-V8n architecture was improved by adding a Weighted Feature Enhancement (WFE) model to the backbone for improved feature extraction, and Bi-directional Feature Pyramid Network (Bi-FPN) was applied to the neck to improve multi-scale feature representation. In addition, a Distance Vision Estimation (DVE) algorithm was developed and applied to the Bi-FPN before connecting it to the head of the YOLO-V8n to facilitate simultaneous object detection and distance measurement in real-time video. Furthermore, the issue of bounding box overlap in the model was addressed by applying a Wise Intersection over Unit (WIoU) loss function. Collectively, these formulated the new transfer learning algorithm called YOLO-V8n+WFE+Bi-FPN+DVE+WIoU used in this work for high-level obstacle detection and distance estimation. The model was trained considering different experimental architectures of the YOLO-V8 and loss functions, respectively, and then evaluated with precision, recall, mean absolute precision, and average precision, respectively, before validation through comparative analysis. Upon selection of the best model, it was further validated through comparison with other state-of-the art algorithms before deployment for obstacle avoidance in an indoor environment, having satisfied the condition of reliability. Real world testing of the model was performed at four different indoor sites, and the results showed that while the model was able to correctly classify objects, it could also measure their distance accurately, thereby making it suitable for deployment as a blind vision guide navigation system.
Published
How to Cite
Issue
Section
Copyright (c) 2024 Ebere Uzoka Chidi, Edward Anoliefo, Collins Udanor, Asogwa Tochukwu Chijindu, Lois Onyejere Nwobodo

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Similar Articles
- B. Bako, E. E. Etim, J. P. Shinggu, S. S. Humphrey, L. J. Moses, M. E. Khan, Quantum chemical calculations of lupeol (C30H50O) isolated from the ethyl acetate leaf extracts of Justicia Secunda , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- L. G. Salaudeen, D. GABI, M. Garba, H. U. Suru, Deep convolutional neural network based synthetic minority over sampling technique: a forfending model for fraudulent credit card transactions in financial institution , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 2, May 2024
- Gabriel James, Ime Umoren, Anietie Ekong, Saviour Inyang, Oscar Aloysius, Analysis of support vector machine and random forest models for classification of the impact of technostress in covid and post-covid era , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- K. Issa, A. T. AbdulKareem, A D. Adeshola, R. A. Bello, Numerical solution of fractional advection-diffusion equation with generalized Caputo derivative using shifted ultraspherical collocation method , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 2, May 2026
- D. C. Iweobodo, G. C. Abanum, O. Ogoegbulem , N. I. Ochonogor, I. N. Njoseh, Discretization of the Caputo time-fractional advection-diffusion problems with certain wavelet basis function , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 3, August 2025
- Vanita R. Raikar, Lakshminarayanachari K, K. Bharathi, C. Bhaskar , Mathematical advection-diffusion model of primary and secondary pollutants emitted from the point source with mesoscale wind and removal mechanisms , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 2, May 2025
- Lek Ming Lim, Yang Lu, Ahmad Sufril Azlan Mohamed, Majid Khan Majahar Ali, Data safety prediction using YOLOv7+G3HN for traffic roads , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- M. O. Ogunniran, A Class of Block Multi-derivative Numerical Techniques for Singular Advection Equations , Journal of the Nigerian Society of Physical Sciences: Volume 1, Issue 2, May 2019
- S. D. Umoh, A. K. Asekunowo, I. S. Okoro, N. X. Siwe, R. W. M. Kraus, O. O. Okoh, A. O. T. Ashafa, O. T. Asekun, O. B. Familoni, Antioxidant evaluation and bio-guided isolation from methanol leaf extract of Acalypha godseffiana , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- K. Lekhana, K. T. Shivaram, Applications of quadrilateral finite element meshes with four-node, eight-node, and twelve-node for efficient microwave energy transfer in curved waveguides , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 3, August 2026 (In Progress)
You may also start an advanced similarity search for this article.

