Bit-serial Discrete Wavelet Transform Filter Design 


Vol. 30,  No. 4, pp. 336-344, Apr.  2005


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  Abstract

Discrete Wavelet Transform(DWT) is the oncoming generation of compression technique that has been selected for MPEG4 and JEPG2000, because it has no blocking effects and efficiently determines frequency property of temporary time. In this paper, we propose an efficient bit-serial architecture for the low-power and lowcomplexity DWT filter, employing two-channel QMF(Qudracture Mirror Filter) PR(Perfect Reconstruction) lattice filter. The filter consists of four lattices(filter length=8) and we determine the quantization bit for the coefficients by the fixed-length PSNR(peak-signal-to-noise ratio) analysis and propose the architecture of the bit-serial multiplier with the fixed coefficient. The CSD encoding for the coefficients is adopted to minimize the number of non-zero bits, thus reduces the hardware complexity. The proposed folded 1D DWT architecture processes the other resolution levels during idle periods by decimations and its efficient scheduling is proposed. The proposed architecture requires only flip-flops and full-adders. The proposed architecture has been designed and verified by VerilogHDL and synthesized by Synopsys Design Compiler with a Hynix 0.35㎛ STD cell library. The maximum operating frequency is 200㎒ and the throughput is 175Mbps with 16 clock latencies.

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  Cite this article

[IEEE Style]

T. g. Park, J. y. Kim, J. r. Noh, "Bit-serial Discrete Wavelet Transform Filter Design," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 336-344, 2005. DOI: .

[ACM Style]

Tae geun Park, Ju young Kim, and Jun rye Noh. 2005. Bit-serial Discrete Wavelet Transform Filter Design. The Journal of Korean Institute of Communications and Information Sciences, 30, 4, (2005), 336-344. DOI: .

[KICS Style]

Tae geun Park, Ju young Kim, Jun rye Noh, "Bit-serial Discrete Wavelet Transform Filter Design," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 336-344, 4. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880