A memory system supporting the efficient SIMD computation of the two dimensional DWT
Marı́a A. Trenas, Javier Miguel Hernández-López, Emilio L. Zapata, Francisco Argüello · 2002
Real time image processing uses SIMD engines to accelerate the computation of algorithms such as the DCT, FFT or DWT. So, a good skewing scheme becomes essential for avoiding memory bank conflicts. A memory system is introduced for the efficient in-place computation of such transforms. It consists of M=2/sup m/ memory modules, providing parallel access to M image points whose patterns are a row or a column, the interval in both cases being 2/sup l/, l/spl ges/0. The efficiency of our design is proved through the computation of the 2D DWT.