Paraunitary filter banks for hierarchical wavelet video coding
W. Niehsen, Michael Brünig · RWTH Publications (RWTH Aachen) · 1999
This paper focuses on paraunitary filter banks for encoding of subband prediction errors in a hierarchical wavelet video coding system. Orthogonal boundary filters without DC leakage are employed. The paraunitary filter bank is adapted to the signal statistics and to the signal length. Simulation results are presented for a fixed biorthogonal system, a fixed paraunitary system, and the proposed adaptive paraunitary system for hierarchical wavelet video coding.