论文信息 - Further results on DCT-based linear phase paraunitary filter banks

Further results on DCT-based linear phase paraunitary filter banks

A DCT-based simplified general structure for a linear phase paraunitary filter bank (LPPUFB) was developed 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). 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.

Trac D. Tran | Jie Liang

[1] Truong Q. Nguyen,et al. The GenLOT: generalized linear-phase lapped orthogonal transform , 1996, IEEE Trans. Signal Process..

[2] P. Vaidyanathan. Multirate Systems And Filter Banks , 1992 .

[3] Henrique S. Malvar,et al. Signal processing with lapped transforms , 1992 .

[4] Truong Q. Nguyen,et al. Lattice structures parameterization of linear phase paraunitary matrices with pairwise mirror-image symmetry in the frequency domain with an odd number of rows , 2001 .

[5] Lu Gan,et al. A simplified lattice factorization for linear-phase perfect reconstruction filter bank , 2001, IEEE Signal Processing Letters.

[6] Trac D. Tran,et al. Lapped transform via time-domain pre- and post-filtering , 2003, IEEE Trans. Signal Process..

[7] Truong Q. Nguyen,et al. Linear phase paraunitary filter banks: theory, factorizations and designs , 1993, IEEE Trans. Signal Process..

[8] Trac D. Tran,et al. DCT-based general structure for linear phase paraunitary filter banks , 2002, 2002 IEEE International Conference on Acoustics, Speech, and Signal Processing.

[9] Truong Q. Nguyen,et al. Linear-phase perfect reconstruction filter bank: lattice structure, design, and application in image coding , 2000, IEEE Trans. Signal Process..

[10] Truong Q. Nguyen,et al. On factorization of M-channel paraunitary filterbanks , 2001, IEEE Trans. Signal Process..