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Investigating the Effect of Bit Depth Rescaling on Spectral Bands Cross-Correlation in Hyperspectral DataCube

Authors:
Ayman Mahmoud Mohamed Ahmed
Salwa ElRamly

Keywords: Hyperspectral Datacube; Spectral correlation; Bit depth; Spectral Analysis

Abstract:
Hyperspectral data analysis nowadays is one of the most common activities in the scientific community regarding data fusion and processing; most available free data through NASA websites are very helpful for researchers and postgraduate studies; Data has different formats band interleaved by pixel (BIP), Band sequential (BSQ) and Band-Interleaved-by-Line (BIL); also, it differs in bit depth from 12 to 16; as well as processed or raw format, headers included or without header; many researchers have to reformat the data for further use with either standard software like Environment for Visualizing Images software (ENVI), or custom developed software. This paper investigates the effect of rescaling pixel bit depth of hyperspectral data, on the spectral correlation between successive bands of the datacube. On the other hand, all other reformatting processes like band reordering and headers removal will not affect the spirit of the hyperspectral cube itself.

Pages: 82 to 85

Copyright: Copyright (c) The Government of Egypt, 2012. Used by permission to IARIA.

Publication date: April 29, 2012

Published in: conference

ISSN: 2308-4480

ISBN: 978-1-61208-194-6

Location: Chamonix, France

Dates: from April 29, 2012 to May 4, 2012