【摘要】 在实验研究的基础上,对运动影像测量方法的误差问题进行了讨论。在总结前人研究结果以及实验测试的基础上,以竞走项目为例,提出了对测量过程中各误差源进行误差合成计算的方法,确定了最后测量结果的误差范围以及各误差源的比例构成。研究结果表明:在平面定机拍摄时,图像边缘处的镜头畸变误差会对测量结果产生一定影响;在立体影像定机拍摄时,标定空间与地面垂直方向的测量精度高于其他方向。误差合成的计算结果表明,平面定机拍摄和立体定机拍摄两种方法的测量精度分别为8.1±8.44mm和8.05±4.9mm,多数被测点的位移量误差百分比在2%以下。更多还原

【Abstract】 Based on the experimental research,this study analyzed the topic about error of motion image measurement method.After the collection of error research conclusion by other the researchers and a series of especial experimental test,taking the race walk for an example,this paper put forwards the error synthetic calculation method and determines the proportion for each error resources.The results as follows:by two dimensions image analysis,the measurement result should be affected by the lens distortion errors;by three-dimensional image analysis,the vertical measurement accuracy is higher than the other two directions.The results of error synthetic calculation shows that the precision of planar and stereo fixed camera analysis are 8.1±8.44mm and 8.05±4.9mm respectively,and most percentage error of the measuring point less than 2%.更多还原