Fractional pixel motion estimation

Smita Gupta; Allen Gersho

doi:10.1117/12.157959

22 October 1993 Fractional pixel motion estimation

Smita Gupta, Allen Gersho

Proceedings Volume 2094, Visual Communications and Image Processing '93; (1993) https://doi.org/10.1117/12.157959
Event: Visual Communications and Image Processing '93, 1993, Cambridge, MA, United States

Abstract

In this paper, we present a novel method for sub-pixel motion estimation. Compared to traditional methods, our technique offers a significantly reduced complexity by eliminating the explicit interpolation of pixel values at a finer sampling grid and avoiding the distortion evaluation for each candidate sub-pixel motion vector. Simulation results confirm that its performance is virtually indistinguishable from that of a traditional sub-pixel motion estimator. To illustrate applications of the new method we have developed a variable resolution motion estimator. The performance of the variable resolution motion estimator is evaluated by replacement of the fixed resolution motion estimator in Simulation Model 3 of MPEG-1 video compression standard by the variable resolution motion estimator.

Citation Download Citation

Smita Gupta and Allen Gersho "Fractional pixel motion estimation", Proc. SPIE 2094, Visual Communications and Image Processing '93, (22 October 1993); https://doi.org/10.1117/12.157959

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