Abstract
In this paper we present an approach to go beyondthe accuracy limits of current optical flow estimators. We haveused coarse to over-fine approach along with hybridinterpolation to upgrade coarse to fine approach. Coarse to fineapproach is used by most modern optical flow algorithms.Results of suggested method show benefit for sub-pixel motion.It also reduces the estimation error to great extent. Hybridinterpolation method is used which is an integration of bilinearand bi-cubic interpolation methods. Results of our approachon benchmark sequences show that estimated depth map areclearer and boundaries are sharper than original coarse tofine approach with bi-cubic interpolation method. Once opticalflow vectors are found occlusion is detected based on theconcept of residual error image.
Authors
