Title
Discriminative Multiple-Instance Hyperspectral Subpixel Target Characterization
Abstract
Subpixel target detection in hyperspectral imagery is challenging since subpixel targets are smaller in size than the resolution of a single pixel and accurate pixel-level labels on subpixel targets are often unavailable. In particular, this article addresses the problem of learning a prime prototype target signature from imprecisely labeled highly mixed hyperspectral data. Two algorithms, multiple-instance subpixel adaptive cosine estimator (MI-SPACE) and multiple-instance subpixel spectral matched filter (MI-SPSMF), based on multiple-instance learning framework are presented. The proposed methods aim to learn a discriminative prime target signature by maximizing the posterior detection statistics of subpixel hyperspectral targets for the correspondingly proposed subpixel adaptive cosine estimator (SPACE) and subpixel spectral matched filter (SPSMF) detectors, which are also developed in this article. Experimental results demonstrate the effectiveness of the proposed methods on both simulated and real-field hyperspectral subpixel target detection tasks.
Year
DOI
Venue
2022
10.1109/TGRS.2022.3140798
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
Keywords
DocType
Volume
Hyperspectral imaging, Detectors, Object detection, Matched filters, Global Positioning System, Training, Task analysis, Adaptive cosine estimator, hyperspectral, imprecise labels, multiple-instance learning, spectral matched filter, subpixel target characterization
Journal
60
ISSN
Citations 
PageRank 
0196-2892
0
0.34
References 
Authors
0
5
Name
Order
Citations
PageRank
Changzhe Jiao100.34
Bo Yang200.34
Qi Wang387057.63
Guozhen Wang400.34
Jinjian Wu553342.70