Fig. S5.

An evaluation of our motion estimation method and Ncorr (30) on a synthetic dataset of images. (A) Sample frames from real videos used to create the dataset. (B) Sample of synthetic motion fields of various motion size and spatial scale used to create the dataset. (C) The motion microscope and Ncorr are used to estimate the motion field, and the average relative error is displayed for both methods as a function of motion size and spatial scale. Both methods are only accurate for spatially smooth motion fields. Our method is twice as accurate for spatially smooth, subpixel motion fields. Ncorr is more accurate for larger motions.