README.TXT (this file)



CLOUD_ARRAY.TIF is a synthetic test image. It contains a 5x5 pattern

　　of identical, regularly-spaced cartoon clouds. This represents

　　an ideal field of view in XY coordinates in order to study the

　　effect of scanner field of view distortion.



MODEL_LIDAR_AND_VALIDATE_TFORM.M is the MATLAB program. NOTE: This

　　is a function M-file with a number of subfunctions inside.

　　Refer to the comment lines for detailed explanation of how the

　　program works.-

Some images are geometrically distorted due to optics　others due to

nonuniform or curvelinear scan coordinates.　Such distortions can be

corrected using spatial transformations given the governing distortion

geometry.　This program demonstrates how to correct for nonuniform

polar scan distortion using spatial transforms in MATLAB with the Image

Processing Toolbox 3.1.