TY - JOUR
T1 - A bootstrap procedure to select hyperspectral wavebands related to tannin content
AU - Ferwerda, Jelle G.
AU - Skidmore, Andrew K.
AU - Stein, Alfred
PY - 2006/4/10
Y1 - 2006/4/10
N2 - Detection of hydrocarbons in plants with hyperspectral remote sensing is hampered by overlapping absorption pits, while the 'optimal' wavebands for detecting some surface characteristics (e.g. chlorophyll, lignin, tannin) may shift. We combined a phased regression with a bootstrap procedure to find wavebands related to the tannin content of fresh leaves, and compared the bands thus identified with the reflectance spectra of pure quebracho tannin. For both reflectance and derivative spectra, bands were identified that can be linked to known absorption features (1471, 1640, 1710, 2175 nm) or fall within the absorption regions identified from a reflectance curve of pure quebracho tannin. We also confirmed a previously reported link between tannin content and the derivative spectra around 800 nm. The study shows that by combining bootstrapping with phased regression it is possible to determine wavebands of which the reflectance is influenced by tannin.
AB - Detection of hydrocarbons in plants with hyperspectral remote sensing is hampered by overlapping absorption pits, while the 'optimal' wavebands for detecting some surface characteristics (e.g. chlorophyll, lignin, tannin) may shift. We combined a phased regression with a bootstrap procedure to find wavebands related to the tannin content of fresh leaves, and compared the bands thus identified with the reflectance spectra of pure quebracho tannin. For both reflectance and derivative spectra, bands were identified that can be linked to known absorption features (1471, 1640, 1710, 2175 nm) or fall within the absorption regions identified from a reflectance curve of pure quebracho tannin. We also confirmed a previously reported link between tannin content and the derivative spectra around 800 nm. The study shows that by combining bootstrapping with phased regression it is possible to determine wavebands of which the reflectance is influenced by tannin.
UR - http://www.scopus.com/inward/record.url?scp=33646700476&partnerID=8YFLogxK
U2 - 10.1080/01431160500497119
DO - 10.1080/01431160500497119
M3 - Article
VL - 27
SP - 1413
EP - 1424
JO - International Journal of Remote Sensing
JF - International Journal of Remote Sensing
SN - 0143-1161
IS - 7
ER -