Presently available literatures, say that there are 3 indices as follows :
AVI - Advanced Vegetation Index - {(B4+1)(256-B3)(B4-B3)}^(1/3)
S I - Shadow Index - {(256-B2)(256-B3)}^(1/2)
B I - Bare soil index - {B4+B2-B3} / {B4+B2-B3}
but none of them are saying about how these three indices are integrated to get the forest canopy density map. Can anyone help me with this ???
Also, In one of the literature it is mentioned that ,
Forest Canopy Density = {sqrt (VD+SSI+1)}-1
but how to determine SSI & VD ????
ie., Scaled shadow index and Vegetation Density ????
Hello Guagan,
Try a different approach: http://www.qucosa.de/fileadmin/data/qucosa/documents/6270/Habilitation.pdf
Best Regards,
Article Identification and assessment of factors affecting forest de...
Do the waitage overlay analysis in Arc GIs using avi, si and Bsi....but you have to calculate the waitage values for all classes.
Hello all, Thank you for all your information :) Really its useful for me
Dear Gugan,
There is a paper which was compare some linear and non-linear techniques to find percent tree cover or canopy density :
Berberoglu, S., Satir, O and Atkinson PM. 2009. Mapping percentage tree cover from Envisat MERIS data using linear and nonlinear techniques. International Journal of Remote Sensing 30(18):4747-4766 · August 2009
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