Training Methods of Multi-label Prediction Classifiers for Hyperspectral Remote Sensing Images

• URL: http://arxiv.org/abs/2301.06874v2
• Date: Thu, 26 Oct 2023 13:05:07 GMT
• Title: Training Methods of Multi-label Prediction Classifiers for Hyperspectral Remote Sensing Images
• Authors: Salma Haidar and Jos\'e Oramas
• Abstract summary: We propose a multi-label, patch-level classification method for hyperspectral remote sensing images. We use patches of reduced spatial dimension and a complete spectral depth extracted from the remote sensing images.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: With their combined spectral depth and geometric resolution, hyperspectral remote sensing images embed a wealth of complex, non-linear information that challenges traditional computer vision techniques. Yet, deep learning methods known for their representation learning capabilities prove more suitable for handling such complexities. Unlike applications that focus on single-label, pixel-level classification methods for hyperspectral remote sensing images, we propose a multi-label, patch-level classification method based on a two-component deep-learning network. We use patches of reduced spatial dimension and a complete spectral depth extracted from the remote sensing images. Additionally, we investigate three training schemes for our network: Iterative, Joint, and Cascade. Experiments suggest that the Joint scheme is the best-performing scheme; however, its application requires an expensive search for the best weight combination of the loss constituents. The Iterative scheme enables the sharing of features between the two parts of the network at the early stages of training. It performs better on complex data with multi-labels. Further experiments showed that methods designed with different architectures performed well when trained on patches extracted and labeled according to our sampling method.

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