Algorithms based on the Standard Wavelet Transform for Angiography Sequences Decomposition

Moyano-Ávila, Encarnación; Quiles, Francisco J.; Orozco-Barbosa, L.

doi:10.1007/978-3-540-36841-0_588

Cited by 1 publication

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“…In this paper, we evaluate the parallel implementations of three image-sequences decorrelation algorithms having been recently introduced in one of our previous works [3]. The algorithms had been developed around the nonalternating classic wavelet-based transform algorithms versus the Classic method [4].…”

Section: Introductionmentioning

confidence: 99%

“…The algorithms had been developed around the nonalternating classic wavelet-based transform algorithms versus the Classic method [4]. The development of these novel algorithms has been motivated by the need of coping with the stringent requirements of visual data: huge storage and high processing demands [3]. Due to the inherent characteristics of the video sequences of our interests, that is, angiograms, we have partitioned the video sequences into group of frames.…”

Section: Introductionmentioning

confidence: 99%

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Development and Evaluation of High-Performance Decorrelation Algorithms for the Nonalternating 3D Wavelet Transform

Moyano-Ávila

Quiles

Orozco-Barbosa

2007

EURASIP J. Adv. Signal Process.

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We introduce and evaluate the implementations of three parallel video-sequences decorrelation algorithms. The proposed algorithms are based on the nonalternating classic three-dimensional wavelet transform (3D-WT). The parallel implementations of the algorithms are developed and tested on a shared memory system, an SGI origin 3800 supercomputer making use of a messagepassing paradigm. We evaluate and analyze the performance of the implementations in terms of the response time and speed-up factor by varying the number of processors and various video coding parameters. The key points enabling the development of highly efficient implementations rely on the partitioning of the video sequences into groups of frames and a workload distribution strategy supplemented by the use of parallel I/O primitives, for better exploiting the inherent features of the application and computing platform. We also evaluate the effectiveness of our algorithms in terms of the first-order entropy.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%