Factorization Approach to Unitary Time-Varying Filter Bank Trees and WaveletsRamesh A. GopinathC.S. Burrus1995IEEE TSP
A Parallel Bit-Level Maximum/Minimum Selector for Digital and Video Signal ProcessingR.A. GopinathC.S. Burrus1994IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing
New Recursive Digital Filter Structures Having Very Low Sensitivity and Roundoff NoiseRamesh C. AgarwalC. Sidney Burrus1975IEEE Transactions on Circuits and Systems