Patent ID: 6456731
Filing Date: 2002-09-24
Classification: G06T

Abstract:
An optical flow estimation method adapted to calculate optical flow for each patch on the basis of two Images, said method comprising the steps of:separating a region having low confidence and a region having high confidence, depending on confidence of said optical flow; and interpolating said optical flow in said region having low confidence using said optical flow in said low confidence region surrounding regions; wherein confidence y is found, upon calculating from a 2Ã—2 matrix of coefficients G in the following equation (a) having as elements the squares of differentials in the vertical and horizontal directions of an image region &ohgr; and its eigenvalues, by the following equation (b) from the smaller eigenvalue &lgr;min and a gray scale residual E between the regions after tracking: G=&Sum;p&Element;Ï‰&it;g&af;(p)&it;â€ƒ&it;g&af;(p)T(a)y=Î»minE.(b)