1. 西部州长大学, 信息科学学院, 美国盐湖城 84107
2. 南昌市第九医院, 传染科, 江西南昌 330046
| 摘 要: | 小麦是全球性的粮食作物,利用基于深度学习的小麦头检测算法有利于简化种植流程,降低种植成本,提高小麦产量。但是由于全球小麦的性状多样、生长周期不一致,构建一个能够在各种场景都保持高鲁棒性以及高精确度的检测模型至关重要。对此,提出了基于深度学习的小麦头检测算法,对于缺少丰富领域数据的小麦头检测场景,提出利用半监督伪标签生成学习算法对无标注的数据进行半监督标注并用于模型训练,提高在新特征域上的泛化性能。此外,为了平衡小麦头检测算法的速度与精度,设计了多模型融合机制,对具有不同特性的检测算法进行融合。最后,介绍了公开小麦头检测数据集,并将其用于算法验证,提出的算法在其验证集上获得95.2%的平均准确率,在测试集上获得76.1%的平均准确率,表明提出的算法具备对跨域场景的鲁棒能力以及优异的检测性能。 |
| 关 键 词: | 目标检测; 半监督学习; 伪标签学习; 农业; 深度学习; 神经网络 |
| DOI: | 10.57237/j.cst.2023.04.006 |
1. Department of Information Technology, Western Governors University, Salt Lake City 84107, USA
2. Department of Infection Diseases, Nanchang No. 9 Hospital, Nanchang 330046, China
| Abstract: | Wheat is a global food crop. Deep learning-based wheat head detection algorithm is helpful to simplify the planting process, reduce the planting cost and improve the wheat yield. However, due to the diversity of wheat traits and in-consistent growth cycles around the world, it is very important to build a detection model that can maintain high robustness and high accuracy in various scenarios. A deep learning-based wheat head detection algorithm was proposed. For the situation that domain data was scarce for wheat head detection, a semi-supervised pseudo label generation algorithm was proposed to semi supervised label the unlabeled data and use it for model training to improve the generalization performance in the new feature domain. In addition, in order to balance the speed and accuracy of wheat head detection algorithm, a multi model fusion mechanism was designed to fuse the detection algorithms with different characteristics. Finally, the open-source wheat head detection dataset was introduced and was used for algorithm verification. The algorithm obtained an average accuracy of 95.2% on its validation set and 76.1% on the test set, which showed that the proposed algorithm had robustness to cross domain scenes and excellent detection performance. |
| Keywords: | Object Detection; Semi-supervised Learning; Pseudo Label Learning; Agriculture; Deep Learning; Neural Network |
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