Angular tracking of 3D scattering center using an optical flow algorithm

In radar cross section studies it is well known that the EM scattered field from an electrically large target can often be well modeled as if it is emanating from a discrete set of points on the target called scattering centers. In this paper, we presented an algorithm to perform angular tracking of 3D scattering centers extracted using the SBR (shooting and bouncing ray) technique. The angular tracking algorithm used the optical flow based velocity fields in conjunction with the other attributes available during the 3D extractions to determine angular associations. The feature tracks can then be grown from these associations. Preliminary results on simple targets shows that this methodology works well. This algorithm can also be extended to track limited angular occlusion of features