Nonlocal means-based speckle filtering for ultrasound images. - Archive ouverte HAL Access content directly
Journal Articles IEEE Transactions on Image Processing Year : 2009

Nonlocal means-based speckle filtering for ultrasound images.

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Abstract

In image processing, restoration is expected to improve the qualitative inspection of the image and the performance of quantitative image analysis techniques. In this paper, an adaptation of the nonlocal (NL)-means filter is proposed for speckle reduction in ultrasound (US) images. Originally developed for additive white Gaussian noise, we propose to use a Bayesian framework to derive a NL-means filter adapted to a relevant ultrasound noise model. Quantitative results on synthetic data show the performances of the proposed method compared to well-established and state-of-the-art methods. Results on real images demonstrate that the proposed method is able to preserve accurately edges and structural details of the image.
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Dates and versions

inserm-00428524 , version 1 (28-10-2009)
inserm-00428524 , version 2 (28-10-2009)

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Pierrick Coupé, Pierre Hellier, Charles Kervrann, Christian Barillot. Nonlocal means-based speckle filtering for ultrasound images.. IEEE Transactions on Image Processing, 2009, 18 (10), pp.2221-9. ⟨10.1109/TIP.2009.2024064⟩. ⟨inserm-00428524v2⟩
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