A Novel Architecture of RNS Based Lifting Integer Wavelet Transform (IWT) and Comparative Study with Other Binary and Non-Binary DWT
Souvik Kumar Saha, Uttam Narendra Thakur, Amitabha Sinha · International Journal of VLSI Design & Communication Systems · 2015
In this paper, a novel architecture of RNS based 1D Lifting Integer Wavelet Transform (IWT) has been introduced.Advantage of Residue Number System (RNS) based Lifting Scheme over RNS based Filter Bank and non-binary IWT has been discussed.The performance of traditional predicts and updates stage of binary Lifting Scheme (LS) for Discrete Wavelet Transform (DWT) generates huge carry propagation delay, power and complexity.As a result non binary number system is becoming popular in the field of Digital Signal Processing (DSP) due to its efficient performance.In this paper also a new fixed number ROM based RNS division circuit has been proposed.The proposed architecture has been validated on Xilinx Vertex5 FPGA platform and the corresponding result and reports are shown in here.