Computer Vision Toolboxes
P. Torr's Structure & Motion Toolbox
J. Bouguet's Matlab Camera Calibration Toolbox
Z. Zhang's camera calibration page
Basic
MathWorks Matlab documentation
University of Delaware's Matlab page
Delaware's R & D software page (if you want to install Matlab on your own computer)
CMU Matlab page (thanks to Frank Dellaert at Ga.Tech for finding these)