Vertex Component Analysis Unmixing Algorithm

Source: R/vca05.R

This algorithm is based on the geometry of convex sets. It exploits the fact that endmembers occupy the vertices of a simplex. Intended to be called from vca.

vca05(data, p, SNR = estSNR(data, p))

Arguments

data

Data matrix. Samples in rows frequencies in columns.

p

Number of endmembers.

SNR

The Signal-to-Noise ratio of the data. By default it will be estimated using estSNR.

Value

The indices of the endmembers in the original dataset.

References

Nascimento, J.M.P. and Bioucas Dias, J.M. "Vertex component analysis: a fast algorithm to unmix hyperspectral data," Geoscience and Remote Sensing, vol. 43, no. 4, pp. 898-910, April 2005, doi: 10.1109/TGRS.2005.844293