Brightness - Remote Sensing and GIS Laboratory

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Lecture review… Transformation of a set of correlated variables (i.e. bands) into a new set of uncorrelated variables (PC). Rotation of the original axes to new orientations ti that t are orthogonal to each other with little or no correlation between variables For remote sensing studies = predominantly exploratory in nature Used to help in the extraction of features and to reduce dimensionality of data After Lillesand and Keifer, 1994 – Lecture materials
Imagine… inputs + process Interpreter Spectral Enhancement Principal Components Save disk space: Stretch (0 – 255) but no further math post- processing Obtain Eigenvectors matrix + Eigenvalues table
Page 1: WILD 5750/6750 LAB 6 - 10/08/2007 P
Page 5 and 6: Imagine… results Eigenvalues tabl
Page 7 and 8: Imagine… results Factor loadings
Page 9 and 10: Lecture review… Brightness defin
Page 11 and 12: Imagine… input + process We need
Page 13 and 14: Assignment - Part B • We have 3 i
Page 15: Suggested readings… • Your book

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