High-speed and memory-efficient architecture for 2-D 1-Level discrete wavelet transform
Hui Hou, Wei Cao, Fanjiong Zhang, Jinmei Lai, Jiarong Tong · 2008
Two dimensional discrete wavelet transform (2DDWT) has been adopted as a coding tool of JPEG 2000 image coding and MPEG-4 still texture coding. To make it suitable for real-time image processing applications, it is essential to develop custom VLSI chips for computation of 2D-DWT. A new high efficient architecture is proposed for 2D 1-level DWT, with the feature of original data is scanned by group and no temporal buffer is needed. Comparison results show our proposed architecture can provide a higher speed at less hardware consume.