Name
Abstract | ||
|---|---|---|
Convolutional neural network (CNN)-based methods have become the mainstream in radar ship recognition. However, these methods suffer from two common problems. First, the training samples consist largely of common ship types, giving them an overwhelming numerical advantage over rare ship types. As a result, CNN-based recognition algorithms fail to classify rare ship types correctly. Second, huge high-resolution slices result in heavy computational burdens. To solve the first problem, namely, the class imbalance problem, this letter proposes a CNN training method that combines deep metric learning (DML) with gradually balanced sampling. DML obtains the center of each class in the feature space and performs clustering equally. Gradually balanced sampling adopts a smooth transition from instance-aware resampling to class-aware resampling to improve the recognition rate drop caused by traditional resampling methods. As for the second problem, to reduce the computational complexity of high-resolution synthetic aperture radar (SAR) images, a lightweight CNN is also proposed. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.1109/LGRS.2021.3083262 | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS |
Keywords | DocType | Volume |
Marine vehicles, Training, Synthetic aperture radar, Target recognition, Radar polarimetry, Wavelength division multiplexing, Task analysis, Class imbalance, convolutional neural network (CNN), deep metric learning (DML), synthetic aperture radar (SAR) automatic target recognition (ATR), ship target recognition | Journal | 19 |
ISSN | Citations | PageRank |
1545-598X | 0 | 0.34 |
References | Authors | |
0 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Ying Zhang | 1 | 163 | 25.25 |
| Zhiyong Lei | 2 | 0 | 0.34 |
| Hui Yu | 3 | 0 | 0.34 |
| Long Zhuang | 4 | 0 | 0.34 |