For many countries like Russia, Canada, or the USA, a robust and detailed tree species inventory is essential to manage their forests sustainably. Since one can not apply unmanned aerial vehicle (UAV) imagery-based approaches to large-scale forest inventory applications, the utilization of machine learning algorithms on satellite imagery is a rising topic of research. Although satellite imagery quality is relatively low, additional spectral channels provide a sufficient amount of information for tree crown classification tasks. Assuming that tree crowns are detected already, we use embeddings of tree crowns generated by Autoencoders as a data set to train classical Machine Learning algorithms. We compare our Autoencoder (AE) based approach to traditional convolutional neural networks (CNN) end-to-end classifiers.
翻译:对俄罗斯、加拿大或美国等许多国家来说,强有力的、详细的树种清册对于可持续地管理其森林至关重要。由于无法对大规模森林清册应用采用无人驾驶飞行器(UAV)成像法,使用卫星图像机学算法是一个日益上升的研究课题。虽然卫星图像质量相对较低,但更多的光谱频道为树冠分类任务提供了足够信息。假设已经检测到树冠,我们用Autoencoder(AE)产生的树冠嵌入数据集来培训经典机器学习算法。我们将我们的Autoencoder(AE)法与传统的共生神经网络(CNN)端到端分类器进行比较。