成像位置对运动影像测量结果的影响及其修正

Analysis of the Influence for Different Position in the Scene and Modification in Sports Video Analysis

目的:针对运动影像拍摄过程中所存在的边缘镜头畸变现象,提出一种快速、可操作的修正方法。研究对象与方法:对固定标志物和实际比赛视频分别进行了实验验证和实例检验。结果:三种被测镜头在图像边缘处的畸变误差百分比在2.75%～4%之间;对比赛现场拍摄到运动图像进行处理后,解析点在图像边缘运动速度前后差值百分比分别为5.9%和8.18%。结论:利用Lensdoc插件可以快速有效的对镜头畸变进行修正。

Intention： Explored a rapid and operated method of corection aimed at reduction of the influence of camera distortion in sports video filming.Object and method： the video of fixed markers and the match scene.Result： Experiments shows that the edge distortion error of the three types of lens are between 2.75%-4 %.The result shows that the difference of movement speed between correct and uncorrect in the edge is 5.9% and 8.18%.Conclusion： The lensdoc plug-in software can solve the lens distortion quickly.