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28 November 2007 Despeckling algorithm on ultrasonic image using adaptive block-based singular value decomposition
Napa Sae-Bae, Somkait Udomhunsakul
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Proceedings Volume 6833, Electronic Imaging and Multimedia Technology V; 68330J (2007) https://doi.org/10.1117/12.755012
Event: Photonics Asia 2007, 2007, Beijing, China
Abstract
Speckle noise reduction is an important technique to enhance the quality of ultrasonic image. In this paper, a despeckling algorithm based on an adaptive block-based singular value decomposition filtering (BSVD) applied on ultrasonic images is presented. Instead of applying BSVD directly to ultrasonic image, we propose to apply BSVD on the noisy edge image version obtained from the difference between the logarithmic transformations of the original image and blur image version of its. The recovered image is performed by combining the speckle noise-free edge image with blur image version of its. Finally, exponential transformation is applied in order to get the reconstructed image. To evaluate our algorithm compared with well-know algorithms such as Lee filter, Kuan filter, Homomorphic Wiener filter, median filter and wavelet soft thresholding, four image quality measurements, which are Mean Square Error (MSE), Signal to MSE (S/MSE), Edge preservation (β), and Correlation measurement (ρ), are used. From the results, it clearly shows that the proposed algorithm outperforms other methods in terms of quantitative and subjective assessments.
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Napa Sae-Bae and Somkait Udomhunsakul "Despeckling algorithm on ultrasonic image using adaptive block-based singular value decomposition", Proc. SPIE 6833, Electronic Imaging and Multimedia Technology V, 68330J (28 November 2007); https://doi.org/10.1117/12.755012
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KEYWORDS
Ultrasonics
Speckle
Digital filtering
Image filtering
Electronic filtering
Image quality
Image restoration
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