On the influence of the phase of conjugate quadrature filters in subband image coding.

Baskurt, A; Benoit-Cattin, H; Odet, C · IEEE Trans Image Process · 1998

Where this comes from

Abstract

The influence of the phase of conjugate quadrature filters (CQFs) on the performances of a subband coding scheme is analyzed. When the filter length is short, the phase characteristic has virtually no influence on the peak signal-to-noise ratio (PSNR)/bit rate results and on the performance of postprocessing algorithms such as edge detection.