Dual Homogeneous Patches-Based Band Selection Methodology for Hyperspectral Classification
نویسندگان
چکیده
Homogeneous band- or pixel-based feature selection, which exploits the difference between spectral spatial regions to select informative and low-redundant bands, has been extensively studied in classifying hyperspectral images (HSIs). Although many models have proven effective, they rarely simultaneously exploit homogeneous information, are beneficial extract potential low-dimensional characteristics even under noise. Moreover, employed vectorial transformation unordered assumption destroy implicit knowledge of HSIs. To solve these issues, a dual pixel patches-based methodology termed PHSIMR was created for selecting most representative, low-redundant, integrating hybrid superpixelwise adjacent band grouping regional mutuality ranking algorithms. Specifically, adjoining technique is designed group bands into connected clusters with small patch containing several homolabeled points. Hence, processing efficient, can perceptually quickly acquire groups. Furthermore, constructed graph affiliated avoid assumption, protecting contextual information. Then, algorithm on another larger within each group, acquiring final subset. Since patches consist pixels, supervised methodology. Comparative experiments three benchmark HSIs were performed demonstrate efficiency effectiveness proposed PHSIMR.
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ژورنال
عنوان ژورنال: Remote Sensing
سال: 2023
ISSN: ['2315-4632', '2315-4675']
DOI: https://doi.org/10.3390/rs15153841