| 基于小波变换利用超声估计生物组织散射元平均间距 |
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| 引用本文： | 严加勇,牛金海,寿文德,谢志行,王鸿樟.基于小波变换利用超声估计生物组织散射元平均间距[J].声学技术,2000,19(1):9-12. |
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| 作者姓名： | 严加勇 牛金海 寿文德 谢志行 王鸿樟 |
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| 作者单位： | 上海交通大学生物医学工程系，上海 200030 |
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| 摘 要： | 生物组织散射元平均间距是描述生物组织微观结构和生物组织和超声散射特性和重要参数，文中构建并物理仿真了生物组织散射元一维超声散射模型，用小波变换方法估计了仿一物组织散射元的平均间距。
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| 关 键 词： | 生物组织 散射元平均间距 小波变换 超声波 |
| 文章编号： | 1000-3630(2000)01-09-04 |
| 收稿时间： | 1999/6/23 0:00:00 |
| 修稿时间： | 1999/8/18 0:00:00 |
Ultrasonic estimating mean scatterer spacing of biotissue based on wavelet transform |
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| YAN Jia-yong,NIU Jin-hai,SHOU Wen-de,XIE Zhi-xing and WANG Hong-zhang.Ultrasonic estimating mean scatterer spacing of biotissue based on wavelet transform[J].Technical Acoustics,2000,19(1):9-12. |
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| Authors: | YAN Jia-yong NIU Jin-hai SHOU Wen-de XIE Zhi-xing and WANG Hong-zhang |
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| Affiliation: | Shanghai Jiaotong University, Shanghai 200030;Shanghai Jiaotong University, Shanghai 200030;Shanghai Jiaotong University, Shanghai 200030;Shanghai Jiaotong University, Shanghai 200030;Shanghai Jiaotong University, Shanghai 200030 |
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| Abstract: | Mean scatterer spacing(MSS) is an important parameter for describing biotissue microstructure and its ultrasonic scattering characteristics.In this paper,one dimensional ultrasonic scattering model of biotissue is constructed and physically simulated.Our analysis indicates that multiresolution analysis has the disadvantage of miss some scatterers,especially for relative regular scattering,however,using the time frequency graph of continuous wavelet transform can obtain the better result. |
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| Keywords: | ultrasound biotissue mean scatterer spacing wavelet transform |
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