A memory system supporting the efficient SIMD computation of the two dimensional DWT

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 o...

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Main Authors: Trenas, M.A., Lopez, J., Zapata, E.L., Arguello, F.
Format: Conference Proceeding
Language:English
Subjects:
Bandwidth
Circuits
Computer architecture
Discrete cosine transforms
Discrete wavelet transforms
Engines
Image coding
Image processing
Parallel processing
Very large scale integration
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creator Trenas, M.A.
Lopez, J.
Zapata, E.L.
Arguello, F.
description 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.
doi_str_mv 10.1109/ICASSP.1998.681739
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ispartof Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181), 1998, Vol.3, p.1521-1524 vol.3
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subjects Bandwidth
Circuits
Computer architecture
Discrete cosine transforms
Discrete wavelet transforms
Engines
Image coding
Image processing
Parallel processing
Very large scale integration
title A memory system supporting the efficient SIMD computation of the two dimensional DWT
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