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| Processing of the Tissue-mimicking Material Ultrasonic Scattering Signal Based on Variable Window Function |
| YANG Meng-wei, ZHU Hai-jiang |
| College of Information Science & Technology, Beijing University of Chemical Technology, Beijing 100029, China |
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Abstract Based on the ultrasonic backscattering imaging of tissue-mimicking phantom, an variable window function algorithm was suggested. At first, the threshold translation process was carried out in backscattering signal. At second, the window-undetection was corrected. At last, the signal achieved by scanning mechanism was quantized to imaging. The experimental result shows that this algorithm could strengthen the difference between noise and interested zone in a target image. The improvement makes it possible for us to do the follow-up research, like edge extraction and three-dimensional reconstruction.
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[1] Pavlin C J, Sherar M D, Foster F S. Subsurface ultrasound microscopic imaging of intact eye[J]. Ophthalmology,1990,97(2):244-250.
[2] Ye S G, Harasiewicz K A, Pavlin C J, et al. Ultrasonic characterization of normal ocular tissue in the frequency range from 50MHz to 100MHz[J]. IEEE Transactions on Ultrasonics,Ferroelectrics and Frequency Control,1995,42(1):8-14.
[3] 国家技术监督局.GB 15261-94,超声仿人体组织材料声学特性的测量方法[S].1994.
[4] 毛伟年,冯若,张卫.哺乳动物软组织超声背向散射谱研究[J].声学学报, 1992,17(6):430-435.
[5] 刘晓宙,叶式公,龚秀芬,等.离体甲状腺的高频超声成像和组织定征[J].中国生物医学工程学报,2001,20(2):110-115.
[6] 刘晓宙,叶式公,龚秀芬,等.离体猪淋巴组织的高频成像研究[J].声学学报,2004,29(3):272-276.
[7] 叶盛楠,苏开娜,肖创柏,等.基于结构信息提取的图像质量评价[J]. 电子学报, 2008:36(5):856-861. |
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2014, Vol. 35 
