Improved YOLOv3-tiny Object Detector with Dilated CNN for Drone-Captured Images

Kumar, Naresh; Jilani, Abdul Khadar; Kumar, P. Vijay; Nikiforova, Anastasija

doi:10.1109/idsta55301.2022.9923041

Cited by 2 publications

(1 citation statement)

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“…The literature studies show that in embedded applications like UAV [ 49 ], the rate of the object detection with YOLOv3 architecture is comparable or faster than with the newer versions. Even in the latest articles about object detection, YOLOv3-tiny is still often used [ 50 , 51 ].…”

Section: Network Architecturementioning

confidence: 99%

Influence of Insufficient Dataset Augmentation on IoU and Detection Threshold in CNN Training for Object Detection on Aerial Images

Bożko

Ambroziak

2022

Sensors

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The objects and events detection tasks are being performed progressively often by robotic systems like unmanned aerial vehicles (UAV) or unmanned surface vehicles (USV). Autonomous operations and intelligent sensing are becoming standard in numerous scenarios such as supervision or even search and rescue (SAR) missions. The low cost of autonomous vehicles, vision sensors and portable computers allows the incorporation of the deep learning, mainly convolutional neural networks (CNN) in these solutions. Many systems meant for custom purposes rely on insufficient training datasets, what may cause a decrease of effectiveness. Moreover, the system’s accuracy is usually dependent on the returned bounding boxes highlighting the supposed targets. In desktop applications, precise localisation might not be particularly relevant; however, in real situations, with low visibility and non-optimal camera orientation, it becomes crucial. One of the solutions for dataset enhancement is its augmentation. The presented work is an attempt to evaluate the influence of the training images augmentation on the detection parameters important for the effectiveness of neural networks in the context of object detection. In this research, network appraisal relies on the detection confidence and bounding box prediction accuracy (IoU). All the applied image modifications were simple pattern and colour alterations. The obtained results imply that there is a measurable impact of the augmentation process on the localisation accuracy. It was concluded that a positive or negative influence is related to the complexity and variability of the objects classes.

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Section: Network Architecturementioning

confidence: 99%