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AI-Based Object Detection and Tracking in UAVs: Challenges and Research Directions—2nd Edition

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Intelligent Sensors".

Deadline for manuscript submissions: 30 September 2025 | Viewed by 609

Special Issue Editor

School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia
Interests: unmanned aerial vehicle; flight dynamics and control; aerial robotics; SLAM
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Combining autonomous unmanned aerial vehicles (UAVs) and AI-based object detection and tracking could significantly improve efficiency, reduce costs, and lower risks for various applications. With fast developments in UAV platform design, cameras, micro-computers, and image-processing algorithms, autonomous UAVs have become a promising sensing platform for various applications such as environmental monitoring and infrastructure inspection. These systems can reduce the necessity of traditional manual inspection in risky working environments and avoid the cost of using piloted fixed-wing aircraft or helicopters to conduct large-scale sensing tasks.

New aerial-based sensors with machine learning, object detection, and tracking capabilities provide both opportunities and challenges that allow the research community to provide novel solutions. The key aim of this Special Issue is to bring together innovative research that uses off-the-shelf or custom-made platforms to extend autonomous aerial sensing capabilities. Contributions from all fields related to UAVs and aerial-image processing techniques are of interest, particularly including, but not limited to, the following topics:

Unmanned aerial vehicle (UAV) systems;

Machine learning;

AI-based data processing;

Object detection;

Object tracking;

Localization and mapping;

Path planning;

Obstacle avoidance;

Multi-agent collaboration.

Dr. Boyang Li
Guest Editor

Manuscript Submission Information

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Keywords

  • object detection
  • object tracking
  • UAV

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Published Papers (1 paper)

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Research

19 pages, 5625 KiB  
Article
UAV Imagery Real-Time Semantic Segmentation with Global–Local Information Attention
by Zikang Zhang and Gongquan Li
Sensors 2025, 25(6), 1786; https://doi.org/10.3390/s25061786 - 13 Mar 2025
Viewed by 526
Abstract
In real-time semantic segmentation for drone imagery, current lightweight algorithms suffer from the lack of integration of global and local information in the image, leading to missed detections and misclassifications in the classification categories. This paper proposes a method for the real-time semantic [...] Read more.
In real-time semantic segmentation for drone imagery, current lightweight algorithms suffer from the lack of integration of global and local information in the image, leading to missed detections and misclassifications in the classification categories. This paper proposes a method for the real-time semantic segmentation of drones that integrates multi-scale global context information. The principle utilizes a UNet structure, with the encoder employing a Resnet18 network to extract features. The decoder incorporates a global–local attention module, where the global branch compresses and extracts global information in both vertical and horizontal directions, and the local branch extracts local information through convolution, thereby enhancing the fusion of global and local information in the image. In the segmentation head, a shallow-feature fusion module is used to multi-scale integrate the various features extracted by the encoder, thereby strengthening the spatial information in the shallow features. The model was tested on the UAvid and UDD6 datasets, achieving accuracies of 68% mIoU (mean Intersection over Union) and 67% mIoU on the two datasets, respectively, 10% and 21.2% higher than the baseline model UNet. The real-time performance of the model reached 72.4 frames/s, which is 54.4 frames/s higher than the baseline model UNet. The experimental results demonstrate that the proposed model balances accuracy and real-time performance well. Full article
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