A motion compounding technique for speckle reduction in ultrasound images.

Journal of Digital Imaging
Cheng-Hsien LinChii-Jeng Lin

Abstract

The quality of ultrasound images is usually influenced by speckle noise and the temporal decorrelation of the speckle patterns. To reduce the speckle noise, compounding techniques have been widely applied. Partially correlated images scanned on the same subject cross-section are combined to generate a compound image with improved image quality. However, the compounding technique might introduce image blurring if the transducer or the target moves too fast. This blurring effect becomes especially critical when assessing tissue deformation in clinical motion examinations. In this paper, an ultrasound motion compounding system is proposed to improve the quality of ultrasound motion sequences. The proposed motion compounding technique uses a hierarchical adaptive feature weighted motion estimation method to realign the frames before compounding. Each frame is first registered and warped to the reference frame before being compounded to reduce the speckle noise. Experimental results showed that the motion could be assessed accurately and better visualization could be achieved for the compound images, with improved signal-to-noise and contrast-to-noise ratios.

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Citations

Aug 16, 2015·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Sebastien SallesDidier Vray
Feb 18, 2016·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Antonios Perperidis
Mar 31, 2015·Ultrasound in Medicine & Biology·Antonios PerperidisTom Anderson

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