A high efficient non-recursive DPWT for extracting the transformed coefficients of coarser resolution levels

Author

Tsai, Chin-Feng ; Wang, Huan-Sheng ; Hung, King-Chu

Author_Institution

Dept. of Comput. & Commun. Eng., Nat. Kaohsiung First Univ. of Sci. & Technol.

Volume

2

fYear

2004

fDate

6-9 Dec. 2004

Firstpage

661

Abstract

For the pattern recognition application, a high efficient 1-D non-recursive DPWT (NRDPWT) based on the segment accumulation algorithm (SAA) and the reversible round-off transformation theorem is presented. The SAA is developed to overcome the filter growth problem and facilitate the hardware implementation with the merit of requiring very small amount of multipliers and adders. The latency needed for the SAA-based 1-D NRDPWT is one system clock cycle for any resolution level. In addition, the reversible round-off NRDPWT is developed for solving the bit growth problem existing in the RPA

Keywords

discrete wavelet transforms; pattern recognition; 1D nonrecursive DPWT; adders; bit growth problem; coarser resolution levels; discrete periodized wavelet transform; filter growth problem; hardware implementation; multipliers; pattern recognition; recursive pyramid algorithm; reversible round-off transformation theorem; segment accumulation algorithm; transformed coefficient extraction; Application software; Breast; Cancer; Clocks; Delay; Filters; Hardware; Interleaved codes; Lesions; Noise robustness;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2004. Proceedings. The 2004 IEEE Asia-Pacific Conference on

Conference_Location

Tainan

Print_ISBN

0-7803-8660-4

Type

conf

DOI

10.1109/APCCAS.2004.1412964

Filename

1412964