Wavelet-Based Semantic Features for Hyperspectral Signature Discrimination
FOS: Computer and information sciences
Computer Science - Machine Learning
Computer Vision and Pattern Recognition (cs.CV)
Computer Science - Computer Vision and Pattern Recognition
0202 electrical engineering, electronic engineering, information engineering
02 engineering and technology
Machine Learning (cs.LG)
DOI:
10.48550/arxiv.1602.03903
Publication Date:
2016-01-01
AUTHORS (4)
ABSTRACT
Hyperspectral signature classification is a quantitative analysis approach for hyperspectral imagery which performs detection and classification of the constituent materials at the pixel level in the scene. The classification procedure can be operated directly on hyperspectral data or performed by using some features extracted from the corresponding hyperspectral signatures containing information like the signature's energy or shape. In this paper, we describe a technique that applies non-homogeneous hidden Markov chain (NHMC) models to hyperspectral signature classification. The basic idea is to use statistical models (such as NHMC) to characterize wavelet coefficients which capture the spectrum semantics (i.e., structural information) at multiple levels. Experimental results show that the approach based on NHMC models can outperform existing approaches relevant in classification tasks.<br/>21 pages, 8 figures, 4 tables, preprint, revised April 8 2016<br/>
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