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The design of low-complexity in linear-phase FIR filter banks using powers-of-two coefficients with an application to subband image coding

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3 Author(s)
Horng, B.-R. ; Dept. of Electr. Eng., California Univ., Los Angeles, CA, USA ; Samueli, H. ; Wilson, A.N., Jr.

An optimization technique is presented for the design of multiplierless two-channel linear-phase finite-duration impulse-response (FIR) filter banks. It is shown to yield filter banks with good filtering performance and nearly perfect signal reconstruction. The design employs filters whose coefficients are represented by a canonic signed-digit (CSD) code. When applied to subband image coding this technique provides an easy way to design low-complexity analysis/synthesis filter banks for high-performance codecs. Examples concerning filter design and the application of such filters to subband image coding are given

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Circuits and Systems for Video Technology, IEEE Transactions on  (Volume:1 ,  Issue: 4 )