Affine optic flow by David Young

Estimates the parameters of an affine (first-order) optic flow model from two images. (image motion, optical flow, active vision)

Affine Optic Flow Demonstration

affine_flowdisplay(flow, im, step, col)

affine_flowedgedisplay(flow, im1, im2)

Log-polar image sampling by David Young

Resamples an image from a conventional grid to a log-polar grid, and back. (image transform, active vision, logpolar)

logsampback(logarr, rmin, rmax)

logsample(arr, rmin, rmax, xc, yc, nr, nw)

logtform(rmin, rmax, nr, nw)