提升小波变换的FPGA设计与实现

Implementation of Lifting- Based Discrete Wavelet Transform Using FPGA

根据1996年Sweldens等人提出的提升小波变换方法,设计了一种有效的JPEG2000CDF(2,2)整数小波变换的VL-SI实现结构,并对小波系数的变化范围进行了分析。用VHDL对该结构进行基于FPGA实现的可综合描述,并用EDA软件进行了仿真和综合,硬件仿真结果和软件Matlab实现结果完全一致。

Based on the lifting scheme wavelet transform first discovered by Sweldens in 1996, a efficient VLSI architecture of JPEG2000 CDF （2,2） integer-to-integer discrete wavelet transform is presented, and the range of CDF （2,2） wavelet coefficients is analyzed. Then we describe the implementation architecture based on FPGA using VHDL, The code is simulated and synthesized using EDA software, The results of simulation completely correspond with software emulators.