用无人机图像监测树苗健康,构建了三类标注数据集并验证了深度卷积的有效性。
Plantation Monitoring Using Drone Images: A Dataset and Performance Review
- 基于无人机RGB图像构建三类树健康状态数据集(良好、矮小、死亡)
- 深度卷积网络在该数据集上显著提升识别准确率
- 适合农业自动化与小型农场的低成本智能监测应用
自动监测树苗种植园对农业至关重要。精准监测树木健康状况可帮助农民做出科学管理决策。使用无人机图像进行自动监测能提高精度,同时对发展中国家如印度的小农户仍具成本优势。配备RGB相机的小型廉价无人机可获取高分辨率农田图像,便于分析种植园的健康状况。现有自动化监测方法多依赖难以获取的卫星图像。本文提出一种基于无人机图像的种植园健康监测系统,并构建了一个包含三类标签(良好健康、矮小、死亡)的图像数据集,使用CVAT工具进行标注以供研究。实验对比了多种知名CNN模型在该数据集上的表现,初始准确率较低,反映出数据集的复杂性。进一步研究表明,嵌入深度卷积操作的深度神经网络能有效提升模型在无人机图像上的性能。此外,应用先进的目标检测模型实现单棵树的自动识别,以支持更精细的监测。
原文摘要 · Abstract (English)
Automatic monitoring of tree plantations plays a crucial role in agriculture. Flawless monitoring of tree health helps farmers make informed decisions regarding their management by taking appropriate action. Use of drone images for automatic plantation monitoring can enhance the accuracy of the monitoring process, while still being affordable to small farmers in developing countries such as India. Small, low cost drones equipped with an RGB camera can capture high-resolution images of agricultural fields, allowing for detailed analysis of the well-being of the plantations. Existing methods of automated plantation monitoring are mostly based on satellite images, which are difficult to get for the farmers. We propose an automated system for plantation health monitoring using drone images, which are becoming easier to get for the farmers. We propose a dataset of images of trees with three categories: ``Good health", ``Stunted", and ``Dead". We annotate the dataset using CVAT annotation tool, for use in research purposes. We experiment with different well-known CNN models to observe their performance on the proposed dataset. The initial low accuracy levels show the complexity of the proposed dataset. Further, our study revealed that, depth-wise convolution operation embedded in a deep CNN model, can enhance the performance of the model on drone dataset. Further, we apply state-of-the-art object detection models to identify individual trees to better monitor them automatically.
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