An embedded core for the 2D wavelet transform
Camille Diou, Lionel Torres, Michel Robert · 2002
We present a new architecture for the wavelet transform based on the lifting scheme. We present the advantages of the lifting scheme compared to the filter-bank method and propose an architecture that allows a high processing rate and has a very small memory requirement. A new way of managing the transposition buffer using FIFO and delay lines allows the 2D decomposition of an image in real time on-the-fly. The proposed architecture is therefore very compact and is adapted for an implementation as a macrocell inside a system-on-a-chip.