Further results on DCT-based linear phase paraunitary filter banks

A DCT-based simplified general structure for linear phase paraunitary filter bank (LPPUFB) is developed recently by the pre- and post-processing of the DCT in the time domain. The new structure can be viewed as the dual of the generalized LOT (GenLOT). In this paper, we generalize the result to odd-channel LPPUFB and LPPUFB with pair-wise mirror image property. Design examples and their application in image compression are presented.

• Type: Conference
• Year: 2002
• Where: ICIP
• Authors: Jie Liang, Trac D. Tran
• Keywords: ICIP 2002, Image Processing, Pair-wise Mirror Image, Phase Paraunitary Filter, Simplified General Structure