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| 双目视觉测量中三维坐标的求取方法研究 | |
| 引用本文： | 罗世民,李茂西. 双目视觉测量中三维坐标的求取方法研究[J]. 计算机工程与设计, 2006, 27(19): 3622-3624 |
| 作者姓名： | 罗世民 李茂西 |
| 作者单位： | 华东交通大学,江苏,南昌,330013;华东交通大学,江苏,南昌,330013 |
| 摘 要： | 双目视觉测量将同一时刻拍摄的两副物体激光条纹图像,经过特征提取和立体匹配得到两两对应的像素点对,根据摄像机标定建立的物空间坐标到像平面坐标对应的矩阵,利用最小二乘法求取物体三维空间点的坐标.但是,由于最小二乘法没有考虑所建立的超限定方程组所代表的几何意义,计算出的点坐标精度不高.提出一种考虑方程组所代表几何意义的方法,利用异面直线公垂线中点去逼近物体空间点. |
| 关 键 词： | 双目视觉测量 摄像机标定 立体匹配 最小二乘法 异面直线 |
| 文章编号： | 1000-7024（2006）19-3622-03 |
| 收稿时间： | 2006-02-28 |
| 修稿时间： | 2006-02-28 |
Research on how to get object's 3D coordinate on two CCD camera measure system |
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| LUO Shi-min,LI Mao-xi. Research on how to get object's 3D coordinate on two CCD camera measure system[J]. Computer Engineering and Design, 2006, 27(19): 3622-3624 | |
| Authors: | LUO Shi-min LI Mao-xi |
| Affiliation: | East China Jiaotong University, Nanchang 330013, China |
| Abstract: | Double camera measure dispose of the two laser stripe images which gained by the two camera at the same time, via digital image process such as acquiring the feature, 3D matching to get two images pixels. Based on the relation between the object coordinate and the image coordinate that established by the camera calibration, using lease square-method to acquire 3D points coordinate, because lease square-method do not consider geometric meaning that the equation is represent for, so the measure precision is lower. A model is described which consider the equation geometric meaning, make use of crossover line to get 3D points coordinate. |
| Keywords: | double camera measure camera calibration 3D matching lease square-method crossover line |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |