Motion Adaptive Downsampling Of High Definition Television Signals

Thomas Reuter

doi:10.1117/12.952193

1 May 1986 Motion Adaptive Downsampling Of High Definition Television Signals

Thomas Reuter

Proceedings Volume 0594, Image Coding; (1986) https://doi.org/10.1117/12.952193
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

To reduce the data rate for the digital transmission of a high definition television (HDTV) signal different three-dimensional downsampling patterns were investigated with regard to the three-dimensional spectral domain that can be represented. Resulting from these investigations and from computer simulations sampling patterns allowing the transmission of spectral domains which are optimally adapted to the human visual perception are proposed. For the luminance signal a 2:1 downsampling procedure with motion adaptive pre- and post-filtering is presented. The spatial resolution for stationary areas is not reduced in comparison to the interlaced signal. For the chrominance signals a non-adaptive procedure with a reduction factor of 4 is suggested. In contrast to other procedures the spatial resolution for nonmoving parts is uniformly reduced by a factor of 2 in both the horizontal and vertical direction.

Citation Download Citation

Thomas Reuter "Motion Adaptive Downsampling Of High Definition Television Signals", Proc. SPIE 0594, Image Coding, (1 May 1986); https://doi.org/10.1117/12.952193

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