TY - GEN
T1 - Continuous wavelet transformations for hyperspectral feature detection
AU - Ferwerda, J.G.
AU - Jones, Simon D.
PY - 2006
Y1 - 2006
N2 - A novel method for the analysis of spectra and detection of absorption features in hyperspectral signatures is proposed, based on the ability of wavelet transformations to enhance absorption features. Field spectra of wheat grown on different levels of available nitrogen were collected, and compared to the foliar nitrogen content. The spectra were assessed both as absolute reflectances and recalculated into derivative spectra, and their respective wavelet transformed signals. Wavelet transformed signals, transformed using the Daubechies 5 motherwavelet at scaling level 32, performed consistently better than reflectance or derivative spectra when tested in a bootstrapped phased regression against nitrogen.
AB - A novel method for the analysis of spectra and detection of absorption features in hyperspectral signatures is proposed, based on the ability of wavelet transformations to enhance absorption features. Field spectra of wheat grown on different levels of available nitrogen were collected, and compared to the foliar nitrogen content. The spectra were assessed both as absolute reflectances and recalculated into derivative spectra, and their respective wavelet transformed signals. Wavelet transformed signals, transformed using the Daubechies 5 motherwavelet at scaling level 32, performed consistently better than reflectance or derivative spectra when tested in a bootstrapped phased regression against nitrogen.
KW - ITC-CV
U2 - 10.1007/3-540-35589-8_11
DO - 10.1007/3-540-35589-8_11
M3 - Conference contribution
AN - SCOPUS:84867646390
SN - 354035588X
SN - 9783540355885
T3 - Progress in Spatial Data Handling - 12th International Symposium on Spatial Data Handling, SDH 2006
SP - 167
EP - 178
BT - Progress in Spatial Data Handling - 12th International Symposium on Spatial Data Handling, SDH 2006
T2 - 12th International Symposium on Spatial Data Handling, SDH 2006
Y2 - 12 July 2006 through 14 July 2006
ER -