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Article overview
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Parallel Wavelet Schemes for Images | | David Barina
; Michal Kula
; Pavel Zemcik
; | | Date: |
2 May 2016 | | Abstract: | In this paper, we introduce several new schemes for calculation of discrete
wavelet transforms of images. These schemes reduce the number of steps and, as
a consequence, allow to reduce the number of synchronizations on parallel
architectures. As an additional useful property, the proposed schemes can
reduce also the number of arithmetic operations. The schemes are primarily
demonstrated on CDF 5/3 and CDF 9/7 wavelets employed in JPEG 2000 image
compression standard. However, the presented method is general and it can be
applied on any wavelet transform. As a result, our scheme requires only two
memory barriers for 2-D CDF 5/3 transform compared to four barriers in the
original separable form or three barriers in the non-separable scheme recently
published. Our reasoning is supported by exhaustive experiments on high-end
graphics cards. | | Source: | arXiv, 1605.0561 | | Services: | Forum | Review | PDF | Favorites | |
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