Video de-interlacing by adaptive 4-field global/local motion compensated approach

A de-interlacing algorithm using adaptive 4-field global/local motion compensated approach is presented. It consists of block-based directional edge interpolation, same-parity 4-field motion detection, global/local motion estimation and compensation. The edges are sharper when the directional edge interpolation is adopted. The same parity 4-field motion detection and the 4-field local motion estimation detect the static areas and fast motion by four reference fields, and the global motion estimation detects the camera panning and zooming motions. The global and local motion compensation recover the interlaced videos to the progressive ones. Experimental results show that the peak signal-to-noise ratio of our proposed algorithm is 2/spl sim/3 dB higher than that of previous studies and attain the best quality of subjective view.

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