Has anyone using an EGI system and the Geodesic Photogrammetry System tried using image processing tools to automate the sensor location definitions from the photographs provided by the GPS? It seems that this might be possible using Matlab's Image Processing Toolbox, and would be faster than doing 128 or 256 channels by hand. Anyone tried it yet? Thanks so much! Best, Michael Michael L. Spezio, Ph.D. Assistant Professor of Psychology Department of Psychology Scripps College Claremont, CA [log in to unmask] 909.607.0914 and Visiting Associate Scientist Psychology & Neuroscience Division of Humanities & Social Sciences Caltech Pasadena, CA 91125 [log in to unmask]