This paper proposes implementation of multiplier less architecture of 2-D discrete wavelet transform (DWT) and inverse DWT (IDWT) using lifting based approach for JPEG2000 standard. A VHDL model is designed, synthesized by ISE 9.2i and implemented in Xilinx FPGA- XC3S200. The proposed 2-D DWT architecture consists of Control module, RWTU module and memory module for forward and inverse transform. This approach of forward and inverse wavelet transform can be applied for an image to be decomposed at different levels. On the problem that the hardware overhead in architecture for Convolution based DWT wastes a lot which is replaced here with a multiplierless design .This can be achieved with lifting approach with shifters and adders/subtractors replacing multipliers. Thus giving less number of Computations and makes control complexity very simple.

1. Abdullah Al Muhit, “VLSI Implementation of Discrete Wavelet Transform (DWT) for Image Compression”, 2nd International Conference on Automatic Robots and Agents, December 2004, New Zealand.
2. Chao-Tsung Huangand Liang-Gee Chen, “Analysis and VLSI Architecture for 1-D and 2-D Discrete Wavelet Transform”, IEEE Transactions On Signal Processing, Vol. 53, No. 4, April 2005.
3. Cheng-Yi Xiong, and Jian Liu, “Efficient High-Speed/Low-Power Line- Based Architecture for 2D Discrete Wavelet Transform Using Lifting Scheme”,IEEE Transactions On Circuits And Systems For Video Technology, Vol. 16, No. 2, February 2006 .
4. Kishore Andra and Tinku Acharya, “A VLSI Architecture for Lifting-Based Forward and Inverse Wavelet Transform,”, IEEE Transactions On Signal Processing, Vol. 50, No. 4, April 2002.
5. King Hung, “FPGA implementation for 2D Discrete wavelet transform” , electronics Letters ,April 2004.
6. Rohini S. Asamwar and A.S.Gandhi, “Successive Image Interpolation Using Lifting Scheme Approach”, Journal of Computer Science 6 (9): 961-970, 2010, ISSN 1549-3636.
7. S. Barua, J.E.Carletta, K.A. Kotteri, “An efficient architecture for lifting-based two-dimensional discrete wavelet transforms INTEGRATION”, the VLSI journal (2005).
8. Vasil Kolev, “Multiplierless Modules for Forward and Backward Integer Wavelet Transform”, International Conference on Computer Systems & Technologies - CompSysTech’2003.
9. Yan Kui Sun, “A two dimensional lifting scheme of integer wavelet transform for loss less image compression”, Image Processing, 2004 ICIP 2004.

DWT multiplier less adders shifters lifting steps 5/3 LeGall Wavelet filter VHDL