Laplacian pyramid based non-linear coherence diffusion for real-time ultrasound image speckle reduction

被引:2
作者
Zhang, Guofeng [1 ,2 ]
Song, Renjie [1 ]
Ding, Bo [2 ]
Zhu, Yifei [1 ]
Xue, Honghui [1 ]
Tu, Juan [1 ,3 ]
Hang, Jing [4 ]
Ye, Xinhua [4 ]
Xu, Di [5 ]
机构
[1] Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Dept Phys, Key Lab Modern Acoust MOE, Nanjing 210093, Peoples R China
[2] Zhuhai Yikai Dianzi Co Ltd, 4F,Bldg D,288 East Airport Rd, Zhuhai 519041, Guangdong, Peoples R China
[3] Chinese Acad Sci, State Key Lab Acoust, Beijing, Peoples R China
[4] Nanjing Med Univ, Affiliated Hosp 1, Dept Ultrasound, Nanjing, Peoples R China
[5] Nanjing Med Univ, Affiliated Hosp 1, Dept Geriatr, Nanjing, Peoples R China
基金
中国国家自然科学基金;
关键词
Speckle reduction; Ultrasound imaging; Laplacian pyramid; Multiscale analysis; Nonlinear anisotropic diffusion; Coherence enhancement; ENHANCEMENT; DOMAIN;
D O I
10.1016/j.apacoust.2021.108298
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The inherent speckle noise in medical ultrasound image degrades valuable clinical information and affects the diagnosis quality. Therefore, commercial ultrasound systems always face a big challenge to improve the visual quality of ultrasound images by reducing the speckle noise. A new hybrid algorithm is proposed in the present paper for speckle reduction by combining nonlinear coherence diffusion (NCD) with pyramid-transform-based multi-scale filters (named as Laplacian Pyramid Based Non-linear Coherence Diffusion; viz. LPNCD). The new approach exhibits good capability in preserving tissue features while enhancing the coherence. The theory and implementation of the approach are presented and verified based on phantom and clinical data. By comparing with previous techniques on quantified signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR), the results suggest that the LPNCD method may demonstrate superior performance than other commonly used AD-class filters. Meanwhile, the performance of GPU implementations of the current technique is also evaluated, and it is verified that the LPNCD approach may have good performance efficiency and wonderful visual effect as running on mainstream commercial ultrasound systems. (C) 2021 Elsevier Ltd. All rights reserved.
引用
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页数:7
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