Motion-compensated spatio-temporal interpolation for frame rate up-conversion of interlaced or progressive image sequences

Teh-Tzong Chao; Chang-Lin Huang

doi:10.1117/12.186011

16 September 1994 Motion-compensated spatio-temporal interpolation for frame rate up-conversion of interlaced or progressive image sequences

Teh-Tzong Chao, Chang-Lin Huang

Author Affiliations +

Proceedings Volume 2308, Visual Communications and Image Processing '94; (1994) https://doi.org/10.1117/12.186011
Event: Visual Communications and Image Processing '94, 1994, Chicago, IL, United States

Abstract

This paper proposes a new motion-compensated frame (field) interpolation algorithm for frame (field) rate upconversion, which allows us to interpolate frame (or pairs of fields) between two originally continuous frames (fields) of a digital television sequence by preserving the stationary background. First, for a interlace format, the de-interlacing process was used to reduce the motion range after converting the interlace format to progressive one. A video scene can be temporally categorized by the change detector into changed and unchanged regions. Each changed region is further separated into moving objects, covered and uncovered regions. To interpolate the intermediate field (frame), we have developed direct motion interpolation method and indirect motion interpolation method to fill the moving object areas in the changed regions, and then apply the forward/backward motion extrapolation method to fill the covered/uncovered regions. Finally the hybrid repetition is used to interpolate the unchanged regions. In the experiment, we will show the interpolated fields and frames for two standard image sequences.

Citation Download Citation

Teh-Tzong Chao and Chang-Lin Huang "Motion-compensated spatio-temporal interpolation for frame rate up-conversion of interlaced or progressive image sequences", Proc. SPIE 2308, Visual Communications and Image Processing '94, (16 September 1994); https://doi.org/10.1117/12.186011

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