该算法将二值边缘图像的梯度映射和人的面部特征的潜在分布规律相结合。
This algorithm has combined the gradient mapping of binary edge image and the potential distribution of people's facial characteristics.
在二值边缘图像中应用双窗口分别选定目标和要去除的噪声，在各窗口中采用双向扫描提取目标特征。
Choose the target and the noise that will be removed in two Windows, then extract target with dual-direction scan in each window.
针对虹膜二值边缘图像提取的困难，提出利用虹膜图像的灰度边缘图像以及虹膜的几何特征进行虹膜定位的快速算法。
Owing to the difficulties in extracting iris edge image, a new iris location algorithm using geometric symmetry feature and edge detection from gray scale image is presented.
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