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Communication dans un congrès

Factor Analysis of Dynamic Sequence with Spatial Prior for 2D Cardiac Spect Sequences Analysis

Abstract : Unmixing is often a necessary step to analyze 2D SPECT image sequence. However, factor analysis of dynamic sequences (FADS), the commonly used method for unmixing SPECT sequences, suffers from non-uniqueness issue. Optimization-based methods were developed to overcome this issue. These methods are effective but need improvement when the mixing is important or with very low SNR. In this paper, a new objective function using soft spatial prior knowledge is developed. Comparison with previous methods, efficiency and robustness to the choice of priors are illustrated with tests on synthetic dataset. Results on 2D SPECT sequences with high level of noise are also presented and compared.
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Communication dans un congrès
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https://hal.univ-grenoble-alpes.fr/hal-01698754
Contributeur : Marc Filippi <>
Soumis le : jeudi 1 février 2018 - 15:59:32
Dernière modification le : mercredi 14 octobre 2020 - 03:51:09
Archivage à long terme le : : mercredi 2 mai 2018 - 15:28:04

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Marc Filippi, Michel Desvignes, Eric Moisan, Catherine Ghezzi, Pascale Perret, et al.. Factor Analysis of Dynamic Sequence with Spatial Prior for 2D Cardiac Spect Sequences Analysis. International Conference on Advanced Concepts for Intelligent Vision Systems (ACIVS 2016), Oct 2016, Lecce, Italy. pp.228-237, ⟨10.1007/978-3-319-48680-2_21⟩. ⟨hal-01698754⟩

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