| 基于Contourlet变换的三维人耳提取 |
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| 引用本文： | 陈雷蕾,王斌,张立明.基于Contourlet变换的三维人耳提取[J].复旦学报(自然科学版),2009,48(1). |
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| 作者姓名： | 陈雷蕾 王斌 张立明 |
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| 作者单位： | 复旦大学电子工程系,上海,200433
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| 基金项目： | 国家自然科学基金，上海市重点学科建设项目 |
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| 摘 要： | 提出一种基于Contourlet变换的三维人耳提取方法.Contourler变换不仅可以提取图像的内在几何信息,而且能将这种信息分解到多个尺度的不同方向上.通过统计耳朵轮廓在Contotourlet变换域不同子带不同位置上系数的分布概率,可构建耳朵概率模型.利用这个模型,把非人耳轮廓边缘过滤掉,只留下耳朵边缘,再计算这些边缘的凸壳,便可实现三维人耳的精确提取.实验结果表明,使用该方法可以较好地提取出三维人耳,同时取得了较好的人耳识别效果.
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| 关 键 词： | 三维人耳提取 Contourlet变换 三维人耳识别 |
3D Ear Extraction Based on Contourlet Transform |
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| CHEN Lei-lei,WANG Bin,ZHANG Li-ming.3D Ear Extraction Based on Contourlet Transform[J].Journal of Fudan University(Natural Science),2009,48(1). |
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| Authors: | CHEN Lei-lei WANG Bin ZHANG Li-ming |
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| Institution: | Department of Electronic Engineering;Fudan University;Shanghai 200433;China |
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| Abstract: | A 3D ear extraction algorithm based on Contourlet transform is proposed.The Contourlet transform can extract the intrinsic geometrical information of image,and then decompose it into different direction on multiple scales.The probability model of ear can be established by gathering the statistical distribution of the Contourlet coefficients of ear edge in Contourlet subbands.With this model,the edges other than ear edges in the era can be filtered,only ear edges are extracted.Finally,ear contour can be easi... |
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| Keywords: | 3D ear extraction Contourlet transform ear recognition in 3D |
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