This thesis has studied methods of target detection and its related technologies such as speckle suppressing and edge extracting for SAR by support of institute of science and technology of national defense.
本文在国防科工委支持下研究了SAR目标检测技术，以及与之有关的如噪 声抑制，边缘提取等方法。
参考来源 - 合成孔径雷达目标检测及相关技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
So the edge extracting must be done for grain measurement.
为了测量颗粒粒径，需要做边缘提取。
The algorithm consists of two part: edge statistical judgement and edge extracting.
该算法包括边缘统计判决及边缘检测两部分。
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.
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。
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