1 November 1991 Lapped orthogonal transform for motion-compensated video compression
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Abstract
Two common techniques for compressing digital video are motion-compensated interframe coding and transform coding. In this paper, we combine the Lapped Orthogonal Transform (LOT) with motion compensated (MC) temporal prediction. The statistical structure of the MC frame differences is distinct from than that of still images. Therefore, we introduce a new lapped transform (the straddle LOT (SLOT)) which considers the structure of the MC frame differences. The combination of the conventional LOT with the SLOT, when applied to the entire image, forms the motion-compensated LOT (MCLOT). We demonstrate, both theoretically and on actual images, that the MCLOT outperforms the conventional LOT when applied to MC frame differences.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
William E. Lynch, William E. Lynch, Amy R. Reibman, Amy R. Reibman, } "Lapped orthogonal transform for motion-compensated video compression", Proc. SPIE 1605, Visual Communications and Image Processing '91: Visual Communication, (1 November 1991); doi: 10.1117/12.50265; https://doi.org/10.1117/12.50265
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