Real-time ship target detection based on aerial remote sensing images

2020 ◽  
Vol 28 (10) ◽  
pp. 2360-2369
Author(s):  
Xin JIANG ◽  
◽  
Wu-xiong CHEN ◽  
Hai-tao NIE ◽  
Zhi-cheng HAO ◽  
...  
Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4696
Author(s):  
Changqing Cao ◽  
Jin Wu ◽  
Xiaodong Zeng ◽  
Zhejun Feng ◽  
Ting Wang ◽  
...  

The wide range, complex background, and small target size of aerial remote sensing images results in the low detection accuracy of remote sensing target detection algorithms. Traditional detection algorithms have low accuracy and slow speed, making it difficult to achieve the precise positioning of small targets. This paper proposes an improved algorithm based on You Only Look Once (YOLO)-v3 for target detection of remote sensing images. Due to the difficulty in obtaining the datasets, research on small targets for complex images, such as airplanes and ships, is the focus of research. To make up for the problem of insufficient data, we screen specific types of training samples from the DOTA (Dataset of Object Detection in Aerial Images) dataset and select small targets in two different complex backgrounds of airplanes and ships to jointly evaluate the optimization degree of the improved network. We compare the improved algorithm with other state-of-the-art target detection algorithms. The results show that the performance indexes of both datasets are ameliorated by 1–3%, effectively verifying the superiority of the improved algorithm.


IEEE Access ◽  
2021 ◽  
Vol 9 ◽  
pp. 28349-28360
Author(s):  
Jiali Cai ◽  
Chunjuan Liu ◽  
Haowen Yan ◽  
Xiaosuo Wu ◽  
Wanzhen Lu ◽  
...  

2016 ◽  
Vol 76 (12) ◽  
pp. 14461-14483 ◽  
Author(s):  
Yudong Lin ◽  
Hongjie He ◽  
Heng-Ming Tai ◽  
Fan Chen ◽  
Zhongke Yin

2018 ◽  
Vol 40 (5-6) ◽  
pp. 2451-2465 ◽  
Author(s):  
Guoqing Zhou ◽  
Rongting Zhang ◽  
Dianjun Zhang ◽  
Jingjin Huang ◽  
Oktay Baysal

2020 ◽  
Vol 12 (15) ◽  
pp. 2427
Author(s):  
Yiming Cai ◽  
Yalin Ding ◽  
Hongwen Zhang ◽  
Jihong Xiu ◽  
Zhiming Liu

To improve the accuracy of the geographic positioning of a single aerial remote sensing image, the height information of a building in the image must be considered. Oblique remote sensing images are essentially two-dimensional images and produce a large positioning error if a traditional positioning algorithm is used to locate the building directly. To address this problem, this study uses a convolutional neural network to automatically detect the location of buildings in remote sensing images. Moreover, it optimizes an automatic building recognition algorithm for oblique aerial remote sensing images based on You Only Look Once V4 (YOLO V4). This study also proposes a positioning algorithm for the building target, which uses the imaging angle to estimate the height of a building, and combines the spatial coordinate transformation matrix to calculate high-accuracy geo-location of target buildings. Simulation analysis shows that the traditional positioning algorithm inevitably leads to large errors in the positioning of building targets. When the target height is 50 m and the imaging angle is 70°, the positioning error is 114.89 m. Flight tests show that the algorithm established in this study can improve the positioning accuracy of building targets by approximately 20%–50% depending on the difference in target height.


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