Motion estimation and compensation from noisy image sequences: A new filtering scheme

Motion estimation and compensation are proposed to be used as a filtering scheme. This latter is perceived in the motion compensation stage, when noisy frames are predicted from a clean one in the same sequence. The prediction source frame can be obtained simply by filtering spatially one selected frame in the sequence. The filtering efficiency is under-constrained by the accuracy of the motion vector field estimated between the prediction source and the other noisy frames. A study has been conducted on the motion estimation from noisy image sequences showing the conditions under which the motion vector field accuracy is preserved. Simulation results have shown that a total decrease by about 80% in computation time is achieved compared to the classical motion-compensated filtering.