Výsledky vyhledávání - "Skoglund, Ulf"

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Adaptive Graph-based Total Variation for Tomographic Reconstructions

Autor: Mahmood, Faisal, Shahid, Nauman, Skoglund, Ulf, Vandergheynst, Pierre

Sparsity exploiting image reconstruction (SER) methods have been extensively used with Total Variation (TV) regularization for tomographic reconstructions. Local TV methods fail to preserve texture details and often create additional artefacts due to

Externí odkaz: http://arxiv.org/abs/1610.00893

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2D Discrete Fourier Transform with Simultaneous Edge Artifact Removal for Real-Time Applications

Autor: Mahmood, Faisal, Toots, Märt, Öfverstedt, Lars-Göran, Skoglund, Ulf

Two-Dimensional (2D) Discrete Fourier Transform (DFT) is a basic and computationally intensive algorithm, with a vast variety of applications. 2D images are, in general, non-periodic, but are assumed to be periodic while calculating their DFTs. This

Externí odkaz: http://arxiv.org/abs/1603.05154

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Graph Based Sinogram Denoising for Tomographic Reconstructions

Autor: Mahmood, Faisal, Shahid, Nauman, Vandergheynst, Pierre, Skoglund, Ulf

Limited data and low dose constraints are common problems in a variety of tomographic reconstruction paradigms which lead to noisy and incomplete data. Over the past few years sinogram denoising has become an essential pre-processing step for low dos

Externí odkaz: http://arxiv.org/abs/1603.04203

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Dissertation/ Thesis

Network interdiction

Autor: Skoglund, Ulf

Network Interdiction-problem innehåller två mot varandra stående styrkor, en användare och en angripare, somär inbegripna i en krigsliknande konflikt. Användaren använder ett nätverk för att optimera en funktion, t.ex.att förflytta en under

Externí odkaz: http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-1824

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