期刊
REMOTE SENSING
卷 14, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/rs14020333
关键词
earth observation; hyperspectral imaging; compressive sensing; pushbroom; image reconstruction
This article investigates the application of a multiband spatial compressive sensing acquisition system based on pushbroom scanning in cryosphere monitoring. Through the analysis and comparison of reconstruction algorithms for static images and moving frames, design guidelines are provided.
In the framework of earth observation for scientific purposes, we consider a multiband spatial compressive sensing (CS) acquisition system, based on a pushbroom scanning. We conduct a series of analyses to address the effects of the satellite movement on its performance in a context of a future space mission aimed at monitoring the cryosphere. We initially apply the state-of-the-art techniques of CS to static images, and evaluate the reconstruction errors on representative scenes of the earth. We then extend the reconstruction algorithms to pushframe acquisitions, i.e., static images processed line-by-line, and pushbroom acquisitions, i.e., moving frames, which consider the payload displacement during acquisition. A parallel analysis on the classical pushbroom acquisition strategy is also performed for comparison. Design guidelines following this analysis are then provided.
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