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Retinal Identification System Based on the Combination of Fourier and Wavelet Transform
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作者 Masoud Sabaghi S. Reza Hadianamrei +2 位作者 mehdi fattahi Mohammad Reza Kouchaki Ali Zahedi 《Journal of Signal and Information Processing》 2012年第1期35-38,共4页
Retinal image is one of the robust and accurate biometrics. A new biometric identification system base on combination of Fourier transform and that special partitioning and wavelet transform presented in this article.... Retinal image is one of the robust and accurate biometrics. A new biometric identification system base on combination of Fourier transform and that special partitioning and wavelet transform presented in this article. In this method, at first, optical disc is localized using template matching technique and use it for rotate the retinal image to reference position. Angular partitioning with the special structure on magnitude spectrum of retinal image and Wavelet Transform is used for feature definition. Finally we employ Euclidean distance for feature matching. The proposed method applied on a database consist 400 retinal images from 40 persons. In this article noisy and rotate retinal image are used in identification process. 99.1% identification rate can achieve in this proposed method. 展开更多
关键词 Component Formatting STYLE STYLING INSERT
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一种制备铝基复合材料疏水导线的方法
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作者 谢文丽 张志红 +5 位作者 mehdi fattahi 王茂成 陈海亮 王冠宇 王硕 王晓涵 《电力与能源进展》 2016年第3期68-73,共6页
利用累积复合轧制法(ARB方法)制作出不同混合比例的4043铝/石墨烯纳米复合材料(累积复合轧制法可被看作是若干个单道次压下量为50%的轧制复合的往复循环),测试得到了不同比例的4043铝/石墨烯复合材料的电导率和静态接触角,发现随着石墨... 利用累积复合轧制法(ARB方法)制作出不同混合比例的4043铝/石墨烯纳米复合材料(累积复合轧制法可被看作是若干个单道次压下量为50%的轧制复合的往复循环),测试得到了不同比例的4043铝/石墨烯复合材料的电导率和静态接触角,发现随着石墨烯掺杂的比例增大,石墨烯/铝复合材料的静态接触角明显提高,电导率略有降低。 展开更多
关键词 疏水导线 静态接触角 电导率
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