Earth Observation via Compressive Sensing: The Effect of Satellite Motion

Remote Sensing

David Sanchez del Rio Kandel¹  Giorgio Pariani²  Luca Oggioni² 

[1] Department of Electrical and Electronics Engineering (SEL), EPFL—Ecole Polytechnique Fédérale de Lausanne, Route Cantonale, 1015 Lausanne, Switzerland;Osservatorio Astronomico di Brera, INAF—Istituto Nazionale di Astrofisica, Via E. Bianchi 46, 23807 Merate, LC, Italy;

关键词: earth observation;    hyperspectral imaging;    compressive sensing;    pushbroom;    image reconstruction;   

DOI  :  10.3390/rs14020333

来源: DOAJ

【 摘 要 】

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.

【 授权许可】

Unknown