Topic: Vector filed interpretation
I am an undergraduate student starting work on my thesis using Cosi-Corr to assign ice velocities to Himalayan glaciers. First, I am attempting to find velocities of glaciers near Mt. Everest that already have published velocity data to ensure my methods are accurate. I am using two ASTER images that I've orthorectified and resampled using Cosi-Corr. I have correlated the two images and created a vector field using the data from that. I overlayed the vectors onto the images and would now like to extract velocity data from the vectors to assess the accuracy of my correlation so I can then apply this method to other glaciers. Is there anyway within Cosi-Corr or ENVI or maybe some outside way to figure out the amount of displacement that each vector in the field represents? I guess I am more or less confused on how to interpret the vector fields.
Thanks a bunch