A SIMULATION ENVIRONMENT UTILIZING 3-DIMENSIONAL FREQUENCY-SPECTRA FOR THE ANALYSIS OF TELEVISION CODING TECHNIQUES

This paper describes the theoretical and technical details of a versat ile simulation environment for the development, analysis, and comparis on of television coding techniques. The main requirement the system sa tisfies is the ability to efficiently process three-dimensional images , i.e., video sequences, and to represent them in both the image domai n and in the spatiotemporal frequency domain as three-dimensional spec tra. By using the three-dimensional spectra of the luminance (Y) and c hrominance (U,V) output signals, spectral information representing the two major parameters of analog television, spatiotemporal resolution and cross effects between the luminance and chrominance signals may be obtained In addition the system is also capable of carrying out a det ailed assessment of nonlinear effects, e.g., aliasing, caused by enhan ced television coding techniques. By using the frequency response of t he eye, an objective and quantitative comparison between different cod ing methods is possible.