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Proceedings Paper

Motion-compensated spatio-temporal interpolation for frame rate up-conversion of interlaced or progressive image sequences
Author(s): Teh-Tzong Chao; Chang-Lin Huang
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Paper 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.

Paper Details

Date Published: 16 September 1994
PDF: 12 pages
Proc. SPIE 2308, Visual Communications and Image Processing '94, (16 September 1994); doi: 10.1117/12.186011
Show Author Affiliations
Teh-Tzong Chao, National Tsing Hua Univ. (Taiwan)
Chang-Lin Huang, National Tsing Hua Univ. (Taiwan)

Published in SPIE Proceedings Vol. 2308:
Visual Communications and Image Processing '94
Aggelos K. Katsaggelos, Editor(s)

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