3-D Motion parameters from contours using a canonic differential

摘要: A method for finding the affine transformation which relates two projections of a planar curve, arbitrarily oriented in 3-space, is presented. The based on canonic parameterization curves and decomposition these into component ellipses such that an arbitrary linear applied to whole scene also applies ellipses. relationship between allows simple solution relating views contour without point correspondence information. Experimental results indicated need smoothing presence noise; hence filtering Fourier domain was contours prior parameterization. theoretical development this technique experimental are