Subband Image Coding with Three-tap Pyramids
Edward H. Adelson, Eero P. Simoncelli · 2000
Subband coding is an effective means of data compression, but the quadrature mirror filters (QMF's) that are generally used have many taps, and often require many floating-point multiplications. As we have previously noted (spie-87), it is possible to perform subband coding with extremely simple decoding filters if one is willing to encode the image with larger filters that are tailored for the task. We describe a specific example of such a solution here.