【摘要】 提出一种基于垂直地面目标的相机标定方法,借助人体在摄像机视场中站立的4～5个位置,得到垂直消失点和水平消失线。同时考虑到两者对整个算法的重要性以及对噪声的敏感性,提出了一种优化算法。最后,给出了摄像机视场中人体最佳位置分布和最佳数目。模拟仿真和实际图像测试均可表明该算法的稳健性和有效性。更多还原

【Abstract】 A novel approach is proposed based on vertical objects using 4～5 positions labeled by human in video sequences with knowing height,in order to obtain vertical vanishing point and plane vanishing line.Considering the importance of the vertical vanishing point,the plane vanishing line and the sensitivity of those two to noise,an optimal algorithm to vanishing point and line is proposed.Finally,the optimal number and position of human in camera field are given.Both computer simulation and real data validate the robustness and effectiveness of the algorithm.更多还原