Makeit Technologies (Center for Industrial Research), Coimbatore, Tamilnadu, India.
College of Engineering, Dhofar University, Salalah, Oman.
Comput Intell Neurosci. 2022 Aug 4;2022:9430779. doi: 10.1155/2022/9430779. eCollection 2022.
In the domain of remote sensing, the classification of hyperspectral image (HSI) has become a popular topic. In general, the complicated features of hyperspectral data cause the precise classification difficult for standard machine learning approaches. Deep learning-based HSI classification has lately received a lot of interest in the field of remote sensing and has shown promising results. As opposed to conventional hand-crafted feature-based classification approaches, deep learning can automatically learn complicated features of HSIs with a greater number of hierarchical layers. Because HSI's data structure is complicated, applying deep learning to it is difficult. The primary objective of this research is to propose a deep feature extraction model for HSI classification. Deep networks can extricate features of spatial and spectral from HSI data simultaneously, which is advantageous for increasing the performances of the proposed system. The squeeze and excitation (SE) network is combined with convolutional neural networks (SE-CNN) in this work to increase its performance in extracting features and classifying HSI. The squeeze and excitation block is designed to improve the representation quality of a CNN. Three benchmark datasets are utilized in the experiment to evaluate the proposed model: Pavia Centre, Pavia University, and Salinas. The proposed model's performance is validated by a performance comparison with current deep transfer learning approaches such as VGG-16, Inception-v3, and ResNet-50. In terms of accuracy on each class of datasets and overall accuracy, the proposed SE-CNN model outperforms the compared models. The proposed model achieved an overall accuracy of 96.05% for Pavia University, 98.94% for Pavia Centre dataset, and 96.33% for Salinas dataset.
在遥感领域,高光谱图像(HSI)的分类已经成为一个热门话题。一般来说,高光谱数据的复杂特征使得标准机器学习方法难以进行精确分类。基于深度学习的 HSI 分类最近在遥感领域受到了广泛关注,并取得了有前景的结果。与传统的基于手工制作特征的分类方法不同,深度学习可以自动学习具有更多层次的高光谱图像的复杂特征。由于 HSI 的数据结构复杂,应用深度学习存在一定的困难。本研究的主要目的是提出一种用于 HSI 分类的深度特征提取模型。深度网络可以同时从 HSI 数据中提取空间和光谱特征,这有利于提高所提出系统的性能。在这项工作中,将 squeeze and excitation (SE) 网络与卷积神经网络(SE-CNN)相结合,以提高其提取特征和分类 HSI 的性能。squeeze and excitation 模块旨在提高 CNN 的表示质量。实验中使用了三个基准数据集来评估所提出的模型:帕维亚中心、帕维亚大学和萨利纳斯。通过与当前的深度迁移学习方法(如 VGG-16、Inception-v3 和 ResNet-50)的性能比较,验证了所提出模型的性能。在所提出的模型中,SE-CNN 模型在每个数据集的类别的准确性和总体准确性方面都优于比较模型。对于帕维亚大学数据集,所提出的模型的总体准确性达到了 96.05%;对于帕维亚中心数据集,总体准确性达到了 98.94%;对于萨利纳斯数据集,总体准确性达到了 96.33%。