| 摘要 |
<p>ADAPTIVE RECONSTRUCTION OF THE COLOR CHANNELS OF A COLOR TV SIGNAL The parent application relates to the removal of aliases aliases from at least a first component signal of a video signal, using one alias-free component of said video signal, by determining from said alias free component the direction of least resolution and averaging said alias containing component in said direction The present invention relates to a method and apparatus for encoding the video signal in a novel manner permitting such alias removal to be readily achieved on decoding. According to the invention, a video signal having at least two components is encoded by periodically sampling at least a first signal component with offset samples, said first signal component having frequency components that can exceed one half the sampling frequency, and sampling a second signal component at a frequency at least about twice the maximum of its highest frequency and about twice the sampling frequency of said first component signal.</p> |
