Title :
Optical Flow in Dynamic Graph Cuts
Author :
Setiawan, Nurul Arif ; Aurrahman, Dhi ; Lee, Chil Woo
Author_Institution :
Chonnam Nat. Univ., Gwangju
Abstract :
In this paper, we propose an approach to calculate optical flow by using dynamic graph cuts framework. We use several good ingredients to estimate optical flow. We combine occlusion model for visual correspondence problem (V. Kolmogorov and R. Zabih, 2001) and illumination invariant optical flow (D. Freedman and M.W. Turek, 2005) to achieve robustness given large occlusion and illumination changes. And we make use the dynamic algorithm from (P. Kohli and P.H.S. Torr, 2005) to estimates dynamically changing MRF models of labeling problems in computer vision. The dynamic algorithm is shown faster than standard counterpart, thus promising real time application of graph cuts techniques to estimate optical flow.
Keywords :
computer graphics; computer vision; image sequences; computer vision; dynamic algorithm; dynamic graph cut framework; illumination change; illumination invariant optical flow; occlusion model; optical flow estimation; Brightness; Computer vision; Heuristic algorithms; Image motion analysis; Labeling; Lighting; Optical computing; Optical sensors; Pixel; Robustness;
Conference_Titel :
Communications, Computers and Signal Processing, 2007. PacRim 2007. IEEE Pacific Rim Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
978-1-4244-1189-4
Electronic_ISBN :
1-4244-1190-4
DOI :
10.1109/PACRIM.2007.4313231