Amplitude and Phase Estimation Combined Coherence Factor Applied to Medical Ultrasound Imaging

Liu Hao-Lin; 易宗锐; 刘东权

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Amplitude and Phase Estimation Combined Coherence Factor Applied to Medical Ultrasound Imaging

更新时间：2023-11-14

- Amplitude and Phase Estimation Combined Coherence Factor Applied to Medical Ultrasound Imaging
- Advanced Engineering Sciences Vol. 47, Issue Z2, Pages: 125-129(2015)
- 作者机构：
  
  四川大学计算机学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015，
  
  Published Online：2 December 2014，
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刘昊霖,易宗锐,刘东权.相干系数与幅度相位估计融合的医学超声成像算法[J].工程科学与技术,2015,47(Z2):125-129.

Liu Hao-Lin, 易宗锐, 刘东权. Amplitude and Phase Estimation Combined Coherence Factor Applied to Medical Ultrasound Imaging. [J]. Advanced Engineering Sciences 47(Z2):125-129(2015)
刘昊霖,易宗锐,刘东权.相干系数与幅度相位估计融合的医学超声成像算法[J].工程科学与技术,2015,47(Z2):125-129. DOI：

Liu Hao-Lin, 易宗锐, 刘东权. Amplitude and Phase Estimation Combined Coherence Factor Applied to Medical Ultrasound Imaging. [J]. Advanced Engineering Sciences 47(Z2):125-129(2015) DOI：

摘要

中文摘要: 在医学超声成像中，最小方差(MV)自适应波束形成算法能有效的提高成像分辨率，但是却牺牲了成像对比度和算法稳健性。针对这个问题，提出了一种相干系数(CF)和幅度相位估计(APES)融合的自适应波束形成算法。该算法利用APES幅度估计准确，成像对比度和算法稳健性高的优点，同时结合相干系数加权抑制噪声和干扰，改善了成像分辨率。仿真实验结果表明：该算法在成像分辨率和对比度方面都要优于传统的延时叠加(DAS)法，最小方差法和原始的幅度相位估计法。

Abstract

Abstract:In medical ultrasound imaging

the minimum variance (MV) adaptive beamforming method can improve the imaging resolution at expense of imaging contrast and robustness. In order to overcome this drawback

the amplitude and phase estimation (APES) adaptive beamforming method combined coherence factor (CF) was introduced. This method was based on the APES which had the merit including accurate amplitude estimation

improved imaging contrast and robustness; and then CF was used to weight the proposed method for reducing the level of noises and interferences and improving the imaging resolution. The simulated results showed that the proposed method in the aspects of imaging resolution and contrast was better than the conventional delay and sum (DAS)

MV and original APES beamforming method.

关键词

医学超声成像自适应波束形成最小方差幅度相位估计相干系数

Keywords

medical ultrasound imagingadaptive beamformingminimum varianceamplitude and phase estimationcoherence factor

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