Helix

Objective To discuss the anatomic basis and clinical advantages of using retroauricular flap pedicled on the superficial temporal artery in the reconstruction of upper helix defect.

结论颞浅动脉耳后支皮瓣修复上耳轮缺损,手术操作简单、易行,皮瓣血供可靠。

Secondly,a method of edge detection based on gray-scale morphology and local threshold segmenting is used to extract edge information of the auricle contour.

首先对原始人耳图像进行预处理,用基于灰度形态学梯度和局部阈值分割的边缘检测方法提取外耳轮廓边缘;然后用标准方差和边缘线段间长度差改进的Hausdorff距离表示人耳特征向量;最后采用支持向量机算法完成人耳识别。

In this thesis,a new ear contour localization method,which is used in the automatic ear recognition system,is presented,using root points of helix and lobule.

本文提出了一种新的可应用于人耳识别系统的人耳轮廓定位方法,即利用耳轮脚和耳垂脚两个端点进行定位,在此基础上提出了一种基于轮廓方向的定位点检测算法,并在实验中取得了良好的效果。