A method and apparatus is disclosed for efficiently encoding data representing
a video image, thereby reducing the amount of data that must be transferred to
a decoder. The method includes transforming data sets utilizing a tensor product
wavelet transform which is capable of transmitting remainders from one subband
to another. Collections of subbands, in macro-block form, are weighted, detected,
and ranked enabling prioritization of the transformed data. A motion compensation
technique is performed on the subband data producing motion vectors and prediction
errors which are positionally encoded into bit stream packets for transmittal to
the decoder. Subband macro-blocks and subband blocks which are equal to zero are
identified as such in the bit stream packets to further reduce the amount of data
that must be transferred to the decoder.