Paper Info
Title
Improved UAV Opium Poppy Detection Using an Updated YOLOv3 Model.
Abstract
Rapid detection of illicit opium poppy plants using UAV (unmanned aerial vehicle) imagery has become an important means to prevent and combat crimes related to drug cultivation. However, current methods rely on time-consuming visual image interpretation. Here, the You Only Look Once version 3 (YOLOv3) network structure was used to assess the influence that different backbone networks have on the average precision and detection speed of an UAV-derived dataset of poppy imagery, with MobileNetv2 (MN) selected as the most suitable backbone network. A Spatial Pyramid Pooling (SPP) unit was introduced and Generalized Intersection over Union (GIoU) was used to calculate the coordinate loss. The resulting SPP-GIoU-YOLOv3-MN model improved the average precision by 1.62% (from 94.75% to 96.37%) without decreasing speed and achieved an average precision of 96.37%, with a detection speed of 29 FPS using an RTX 2080Ti platform. The sliding window method was used for detection in complete UAV images, which took approximately 2.2 sec/image, approximately 10x faster than visual interpretation. The proposed technique significantly improved the efficiency of poppy detection in UAV images while also maintaining a high detection accuracy. The proposed method is thus suitable for the rapid detection of illicit opium poppy cultivation in residential areas and farmland where UAVs with ordinary visible light cameras can be operated at low altitudes (relative height < 200 m).
Year
DOI
Venue
2019
10.3390/s19224851
SENSORS
Keywords
DocType
Volume
UAV,opium poppy,object detection,YOLOv3 model,deep learning,CNN,spatial pyramid pooling,GIoU
Journal
19
Issue
ISSN
Citations 
22.0
1424-8220
1
PageRank 
References 
Authors
0.36
0
6
Name
Order
Citations
PageRank
Jun Zhou162.16
Yichen Tian2175.87
Chao Yuan310.36
Kai Yin410.36
Guang Yang510.36
Meiping Wen610.36