A multiplicative Nakagami speckle reduction algorithm for ultrasound images
Speckle noise of ultrasound images is of multiplicative nature which degrades the image quality in terms of resolution and contrast. While there exist a number of algorithms for reduction of multiplicative Rayleigh distributed random speckle noise, the low signal-to-noise ratio (SNR) issue of the mu...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/101713 http://hdl.handle.net/10220/11139 |
| _version_ | 1824453853603430400 |
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| author | Yu, Chengpu Zheng, Cishen Xie, Lihua |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Yu, Chengpu Zheng, Cishen Xie, Lihua |
| author_sort | Yu, Chengpu |
| collection | NTU |
| description | Speckle noise of ultrasound images is of multiplicative nature which degrades the image quality in terms of resolution and contrast. While there exist a number of algorithms for reduction of multiplicative Rayleigh distributed random speckle noise, the low signal-to-noise ratio (SNR) issue of the multiplicative Rayleigh noise is still not adequately resolved. In this paper, a simple 2-dimensional (2D) local intensity smoothing method is presented which transforms the Rayleigh noise contaminated in ultrasound images to Nakagami distributed noise so as to improve the SNR of processed images. A 2D total variation regularized Nakagami speckle reduction algorithm is derived based on the maximum a posteriori estimation framework, which performs well in restoring piecewise-smooth reflectivity and preserving fine details of the image. The proposed algorithm is verified by a series of computer-simulated and real ultrasound image data. It is shown that the algorithm considerably improves the quality of ultrasound images and outperforms the Rayleigh noise based speckle reduction methods in terms of speckle SNR and contrast-to-noise ratio. |
| first_indexed | 2025-02-19T03:13:01Z |
| format | Journal Article |
| id | ntu-10356/101713 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:13:01Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1017132020-03-07T14:00:33Z A multiplicative Nakagami speckle reduction algorithm for ultrasound images Yu, Chengpu Zheng, Cishen Xie, Lihua School of Electrical and Electronic Engineering DRNTU::Engineering::Electrical and electronic engineering Speckle noise of ultrasound images is of multiplicative nature which degrades the image quality in terms of resolution and contrast. While there exist a number of algorithms for reduction of multiplicative Rayleigh distributed random speckle noise, the low signal-to-noise ratio (SNR) issue of the multiplicative Rayleigh noise is still not adequately resolved. In this paper, a simple 2-dimensional (2D) local intensity smoothing method is presented which transforms the Rayleigh noise contaminated in ultrasound images to Nakagami distributed noise so as to improve the SNR of processed images. A 2D total variation regularized Nakagami speckle reduction algorithm is derived based on the maximum a posteriori estimation framework, which performs well in restoring piecewise-smooth reflectivity and preserving fine details of the image. The proposed algorithm is verified by a series of computer-simulated and real ultrasound image data. It is shown that the algorithm considerably improves the quality of ultrasound images and outperforms the Rayleigh noise based speckle reduction methods in terms of speckle SNR and contrast-to-noise ratio. 2013-07-10T08:33:30Z 2019-12-06T20:43:10Z 2013-07-10T08:33:30Z 2019-12-06T20:43:10Z 2012 2012 Journal Article Yu, C., Zheng, C., Xie, L. (2012). A multiplicative Nakagami speckle reduction algorithm for ultrasound images. Multidimensional Systems and Signal Processing, 23(4), 499-513. https://hdl.handle.net/10356/101713 http://hdl.handle.net/10220/11139 10.1007/s11045-012-0173-8 en Multidimensional systems and signal processing © 2012 Springer Science+Business Media, LLC. |
| spellingShingle | DRNTU::Engineering::Electrical and electronic engineering Yu, Chengpu Zheng, Cishen Xie, Lihua A multiplicative Nakagami speckle reduction algorithm for ultrasound images |
| title | A multiplicative Nakagami speckle reduction algorithm for ultrasound images |
| title_full | A multiplicative Nakagami speckle reduction algorithm for ultrasound images |
| title_fullStr | A multiplicative Nakagami speckle reduction algorithm for ultrasound images |
| title_full_unstemmed | A multiplicative Nakagami speckle reduction algorithm for ultrasound images |
| title_short | A multiplicative Nakagami speckle reduction algorithm for ultrasound images |
| title_sort | multiplicative nakagami speckle reduction algorithm for ultrasound images |
| topic | DRNTU::Engineering::Electrical and electronic engineering |
| url | https://hdl.handle.net/10356/101713 http://hdl.handle.net/10220/11139 |
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