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- W2998893163 abstract "This paper presents a 1-D Discrete Wavelet Transform architecture for Daubechies 4-tap filter bank. The coefficients of the filter banks are mostly irrational numbers and may not be represented properly using integers without injecting some error into the computation. The proposed architecture minimizes the use of such irrational numbers. They are represented using algebraic integers only in the last stage of the wavelet decomposition process. This way, the error does not propagate throughout the wavelet decomposition stages. Further, the architecture is very simple to understand and easy to realize in the hardware. The results depict that the average PSNR of the transformed images is as high as 64 dB. The architecture has been implemented on Xilinx Virtex-6 xc6vcx240t-1ff1156. The results have been compared with the convolution-based architecture. The proposed architecture is multiplier-less and saves approximately 63% of the area as compared to the convolution-based architecture. A comparison is also made with the existing methods and it is clear that the proposed architecture reduces the hardware cost considerably." @default.
- W2998893163 created "2020-01-23" @default.
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- W2998893163 date "2019-12-20" @default.
- W2998893163 modified "2023-10-14" @default.
- W2998893163 title "Multiplier-Less Architecture for 4-Tap Daubechies Wavelet Filters Using Algebraic Integers" @default.
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- W2998893163 doi "https://doi.org/10.1007/978-981-15-0633-8_122" @default.
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