Abstract
In order to transmit high definition television signals economically some kind of data compression has to be utilized. We investigate the question how spatio-temporal properties of human vision can be exploited for data reduction. By means of pyramid coding we implement coding schemes which transmit spatial detail information with reduced temporal resolution. In moving areas with correlated motion we introduce motion-compensated interpolation. In the case of uncorrelated motion, where motion estimation often fails and the eye cannot follow the movement, high spatial frequencies are suppressed. The different systems are rated by means of subjective tests. Furthermore motion-compensated interpolation of the highpass signals of a subband codec using quadrature mirror filters will be analysed.
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