A High-Efficient Line-Based Architecture for 2-D Lifting-Based DWT Using 9/7 Wavelet Filters
Tze‐Yun Sung · Advances in intelligent systems research/Advances in Intelligent Systems Research · 2006
In this paper, a high-efficient lined-based architecture for the 9/7 discrete wavelet transform (DWT) based on lifting scheme is proposed.The proposed parallel and pipelined architecture consists of a horizontal filter (HF) and a vertical filter (VF).The critical path of the proposed architecture is reduced.Filter coefficients of the biorthogonal 9/7 wavelet low-pass filter are quantized before implementation in the high-speed computation hardware.In the proposed architecture, all multiplications are performed using less shifts and additions.The proposed architecture is 100% hardware utilization and ultra low-power.The architecture has regular structure, simple control flow, high throughput and high scalability.Thus, it is very suitable for newgeneration image compression systems, such as JPEG-2000.