基于曲线端点插值平面起控的桥梁航拍图像识别  

Recognition of Bridge Aerial Image Based on Curve Endpoint Interpolation Plane Control

作　　者：陈琳[1] 

机构地区：[1]泰州学院计算机科学与技术学院,江苏泰州225300

出　　处：《科技通报》2014年第10期61-63,共3页Bulletin of Science and Technology

基　　金：泰州学院科研项目(TZXY2013YBKT019)

摘　　要：在计算机辅助三维桥梁重构和桥梁目标识别中,桥梁图像曲线曲面的形状平滑处理是关键。传统方法采用Bézier曲线曲面的自然生成方法,算法没有提升桥梁曲面多项式生成的次数,所以计算复杂度较大,三维平滑效果不佳。提出一种基于曲线端点插值平面起控的三维桥梁航拍图像HC-Bézi-er生成方法实现,对航拍图像识别。定义具有凸包性、对称性等基本性质的新曲线,对三维桥梁平面曲线端点进行控制边重合插值,组合曲线的各曲线段,构造了含积分递推多项式的平面起控基函数,实现三维桥梁图像曲线曲面的精确平滑处理和三维重构模拟。仿真实验表明,采用该算法进行三维桥梁图像模拟,桥梁曲线和曲面可以由不同数量的轮廓点控制,具有形状可调性,实现高阶的光滑拼接,信息分析准确,信息含有量饱满,实现准确三维重构,基于重构图像对航拍桥梁图像检测点的准确识别率较传统方法提高明显。In the computer aided identification of 3D bridge reconstruction, the curves and surfaces smoothing processing is the key. The traditional B＆#233;zier method did not increase the number of polynomial generated, so the computational complexi-ty is big, smoothing effect is bad. A three-dimensional image HC-B＆#233;zier generation method of bridge is proposed curve endpoint interpolation and plane control, curve is defined with convex hull and symmetry property, and control edge super-position interpolation of 3D bridge plane curve ends, each curve segment combination curve, constructed plane containing the integral recursive polynomial control function, the accurate smoothing and 3D reconstruction of bridge image is real-ized. Simulation results show that bridge curve and curved surface can be controlled by the different number, shape adjust-ability is improved, realize the smooth connection of higher order accuracy, information analysis is obtained, information content is full, accurate 3D reconstruction is realized, accurate identification of reconstructed image is improve obviously.

关 键 词：桥梁 三维图像 曲线曲面 目标识别 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]