A Unified Detection Pipeline for Robust Object Detection in Fisheye-Based Traffic Surveillance

Fuente: arXiv
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Main Authors: Owor, Neema Jakisa, Asamoah, Joshua Kofi, Muturi, Tanner Wambui, Owor, Anneliese Jakisa, Kyem, Blessing Agyei, Danyo, Andrews, Adu-Gyamfi, Yaw, Aboah, Armstrong
Format: Preprint
Published: 2025
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author Owor, Neema Jakisa
Asamoah, Joshua Kofi
Muturi, Tanner Wambui
Owor, Anneliese Jakisa
Kyem, Blessing Agyei
Danyo, Andrews
Adu-Gyamfi, Yaw
Aboah, Armstrong
author_facet Owor, Neema Jakisa
Asamoah, Joshua Kofi
Muturi, Tanner Wambui
Owor, Anneliese Jakisa
Kyem, Blessing Agyei
Danyo, Andrews
Adu-Gyamfi, Yaw
Aboah, Armstrong
contents Fisheye cameras offer an efficient solution for wide-area traffic surveillance by capturing large fields of view from a single vantage point. However, the strong radial distortion and nonuniform resolution inherent in fisheye imagery introduce substantial challenges for standard object detectors, particularly near image boundaries where object appearance is severely degraded. In this work, we present a detection framework designed to operate robustly under these conditions. Our approach employs a simple yet effective pre and post processing pipeline that enhances detection consistency across the image, especially in regions affected by severe distortion. We train several state-of-the-art detection models on the fisheye traffic imagery and combine their outputs through an ensemble strategy to improve overall detection accuracy. Our method achieves an F1 score of0.6366 on the 2025 AI City Challenge Track 4, placing 8thoverall out of 62 teams. These results demonstrate the effectiveness of our framework in addressing issues inherent to fisheye imagery.
format Preprint
id arxiv_https___arxiv_org_abs_2510_20016
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A Unified Detection Pipeline for Robust Object Detection in Fisheye-Based Traffic Surveillance
Owor, Neema Jakisa
Asamoah, Joshua Kofi
Muturi, Tanner Wambui
Owor, Anneliese Jakisa
Kyem, Blessing Agyei
Danyo, Andrews
Adu-Gyamfi, Yaw
Aboah, Armstrong
Computer Vision and Pattern Recognition
Fisheye cameras offer an efficient solution for wide-area traffic surveillance by capturing large fields of view from a single vantage point. However, the strong radial distortion and nonuniform resolution inherent in fisheye imagery introduce substantial challenges for standard object detectors, particularly near image boundaries where object appearance is severely degraded. In this work, we present a detection framework designed to operate robustly under these conditions. Our approach employs a simple yet effective pre and post processing pipeline that enhances detection consistency across the image, especially in regions affected by severe distortion. We train several state-of-the-art detection models on the fisheye traffic imagery and combine their outputs through an ensemble strategy to improve overall detection accuracy. Our method achieves an F1 score of0.6366 on the 2025 AI City Challenge Track 4, placing 8thoverall out of 62 teams. These results demonstrate the effectiveness of our framework in addressing issues inherent to fisheye imagery.
title A Unified Detection Pipeline for Robust Object Detection in Fisheye-Based Traffic Surveillance
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2510.20016