Interpolative Multiresolution Coding of Advanced Television with Compatible Subchannels

A multiresolution representation for video signals is Introduced. A three dimensional spatiotemporal pyramid algorithm for high quality compression of advanced television sequences is presented. The scheme utilizes a finite memory structure and is robust to channel errors provides compatible subchannels, and can handle different scan formats: thus It is well-suited for the broadcast environment. Additional features such as fast random access and reverse playback make It suitable for digital storage as well. Model based processing is used both over space and time, where motion based Interpolation is used. Such as interpolation in an FIR scheme solves uncovered area problems, considerably Improving the temporal prediction. Complexity is comparable to existing recursive schemes. Computer simulations indicate that high compression factors (about an order of magnitude) is easily achieved with no apparent loss of quality. The scheme also has a number of commonalities with the emerging MPEG standard.