| 基于定向二维插值的逆投影变换方法 |
| |
| 引用本文： | 郭磊,李克强,马莹,王建强,连小珉.基于定向二维插值的逆投影变换方法[J].清华大学学报(自然科学版),2006,46(5):712-715. |
| |
| 作者姓名： | 郭磊 李克强 马莹 王建强 连小珉 |
| |
| 作者单位： | 清华大学,汽车工程系,汽车安全与节能国家重点实验室,北京,100084 |
| |
| 摘 要： | 为了研究逆投影变换方法在智能车驾驶环境信息采集中的应用,提出了一种反向求解逆投影的方法,即根据用户感兴趣的道路区域规划逆投影变换后的图像,并考虑了车道线的方向特性,提出分段的定向二维插值方法求解逆投影变换后图像各个像素点的灰度值。理论分析和标定试验表明,使用该方法进行逆投影变换后的图像能够较好地反映客观路面情况,并且可以降低逆投影变换的计算量,强化车道线信息。
|
| 关 键 词： | 汽车 机器视觉 逆投影变换 定向二维插值 |
| 文章编号： | 1000-0054(2006)05-0712-04 |
| 修稿时间： | 2005年4月26日 |
Inverse perspective transform based on directional 2-D interpolation |
| |
| GUO Lei,LI Keqiang,MA Ying,WANG Jianqiang,LIAN Xiaomin.Inverse perspective transform based on directional 2-D interpolation[J].Journal of Tsinghua University(Science and Technology),2006,46(5):712-715. |
| |
| Authors: | GUO Lei LI Keqiang MA Ying WANG Jianqiang LIAN Xiaomin |
| |
| Abstract: | A reverse inverse perspective transform(IPT) method was developed to analyze environmental information collected by intelligent vehicles.The image after the transform can be arranged according to the users' wishes.Directional 2-D interpolation in various subsections was used to calculate the pixel gray values to analyze the directional characteristics of the lane markers.Theoretical analyses and calibration tests show that with the directional 2-D interpolation based IPT,the image accurately represents the road environment with much fewer calculations and improved lane marker identification. |
| |
| Keywords: | automobile machine vision inverse perspective transform directional 2-D interpolation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
