Near-recursive optical flow from disturbance fields

We derive a formal link between temporally weighted frame differences, or disturbance fields, which carry limited information commonly used for mo-tion detection, and the optic flow, which carries rich information on local image motion. We use this to formulate a novel, simple, near-recursive optic flow algorithm based on a recursive-filter formulation. Most quantities in-volved are computed recursively, using only data from the current and previ-ous frame. Experimental results with well-known synthetic, ground-truthed test sequences and standard performance metrics indicate good quantitative performance. Test with real sequences suggest similar or better performance than a similar algorithm.