Notwithstanding it is widely used for spectral discrimination of materials, the spectral angle mapper (SAM) metrics exhibits some limitations, due to its lack of monotonicity as the number of components, i.e., spectral bands, increases. This paper proposes an outcome of the band add-on (BAO) decomposition of SAM, known as as BAO-SAM, for assessing compressed hyperspectral data. Since the material discrimination capability of BAO-SAM is superior to that of SAM, the underlying idea is that if the BAO-SAM between compressed and uncompressed data is kept low, the discrimination capability of compressed data will be favored. Experimental results on AVIRIS data show that BAO-SAM is capable of characterizing the spectral distortion better than SAM does. Furthermore, the possibility of developing a BAO-SAM bounded compression method is investigated. Such a method is likely to be useful for a variety of applications concerning hyperspectral image analysis.

Distortion characterization of compressed hyperspectral imagery through band add-on modified spectral angle mapper distance metrics / Lastri, Cinzia; Aiazzi, Bruno; Baronti, Stefano; Alparone, Luciano. - STAMPA. - (2006), pp. 3521-3524. (Intervento presentato al convegno 2006 IEEE International Geoscience and Remote Sensing Symposium, IGARSS tenutosi a Denver, CO, usa nel 31 July - 4 August 2006) [10.1109/IGARSS.2006.903].

Distortion characterization of compressed hyperspectral imagery through band add-on modified spectral angle mapper distance metrics

ALPARONE, LUCIANO
2006

Abstract

Notwithstanding it is widely used for spectral discrimination of materials, the spectral angle mapper (SAM) metrics exhibits some limitations, due to its lack of monotonicity as the number of components, i.e., spectral bands, increases. This paper proposes an outcome of the band add-on (BAO) decomposition of SAM, known as as BAO-SAM, for assessing compressed hyperspectral data. Since the material discrimination capability of BAO-SAM is superior to that of SAM, the underlying idea is that if the BAO-SAM between compressed and uncompressed data is kept low, the discrimination capability of compressed data will be favored. Experimental results on AVIRIS data show that BAO-SAM is capable of characterizing the spectral distortion better than SAM does. Furthermore, the possibility of developing a BAO-SAM bounded compression method is investigated. Such a method is likely to be useful for a variety of applications concerning hyperspectral image analysis.
2006
International Geoscience and Remote Sensing Symposium (IGARSS)
2006 IEEE International Geoscience and Remote Sensing Symposium, IGARSS
Denver, CO, usa
31 July - 4 August 2006
Lastri, Cinzia; Aiazzi, Bruno; Baronti, Stefano; Alparone, Luciano
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1075512
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