Rank Minimization Method for Speckle Noise Removal in Ultrasound Images

Ultrasound image plays an important role in many medical applications. However, images acquired in ultrasound imaging system are always corrupted by a kind of speckle noise, which seriously affects the images' qualities. In this paper, by exploiting image nonlocal similarities, we establish a m...

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Veröffentlicht in:Engineering letters Jg. 33; H. 6; S. 2228
Hauptverfasser: Yan, Hui-Yin, Liu, Yu-Peng, Wang, He-Xian, Chen, Hao
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Hong Kong International Association of Engineers 01.06.2025
Schlagworte:
Algorithms
Image acquisition
Noise reduction
Optimization models
ISSN:1816-093X, 1816-0948
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Zusammenfassung:Ultrasound image plays an important role in many medical applications. However, images acquired in ultrasound imaging system are always corrupted by a kind of speckle noise, which seriously affects the images' qualities. In this paper, by exploiting image nonlocal similarities, we establish a maximum a posteriori (MAP) estimation-based matrix rank minimization model for speckle noise reduction, and design an alternating proximal gradient algorithm to solve the nonconvex optimization model. The convergence of the alternating proximal gradient algorithm is analyzed and proved. A image denoising method is finally developed by using the rank minimization model and its solving algorithm. Numerical experiments illustrate that the proposed denoising method can outperform some state-of-the-art methods for speckle noise removal in images.
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ISSN:1816-093X
1816-0948