Integrated Variational And Nearest Neighbor field (IVANN) for Optical Flow

It is a fundamental problem to construct accurate dense correspondences between two images. Despite the efforts and promising methods handling relatively small motion, one remaining challenge is induced by large and complex nonrigid motion. Aiming at this challenge, the new method proposed exploits the mutual boosting between the variational flow and the nearest-neighbor field (NNF). The proposed method “IVANN” gives a very effective solution under rather complex motion, and currently achieved state-ofthe-art performance on both the Middlebury[3] and MPISintel benchmarks[7].