根据光学三角原理，可以求出该夹角的大小，然后结合检测器的结构参数可以计算出管道相应位置的曲率半径。
The Angle can be calculated based on principle of optical triangulation and so the curvature of corresponding position based on structure parameters.
本文采用该算法训练人脸面部特征检测器，提取区域的几何中心进行面部特征点定位，获取以双眼和嘴巴为特征顶点的人脸特征三角形。
The thesis uses the method to train face feature classifier, to get the face feature points and build face feature triangle that uses eyes and mouth as vertexes.
为了实现长、细管道内表面三维形貌检测，基于光学三角原理研制了一种新型检测器。
For inspecting the 3d shape and appearance of the inner surface of long and tiny pipe, a new type of sensor was proposed based on the principle of optical triangulation.
为了实现长、细管道内表面三维形貌检测，基于光学三角原理研制了一种新型检测器。
For inspecting the 3d shape and appearance of the inner surface of long and tiny pipe, a new type of sensor was proposed based on the principle of optical triangulation.
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