| 运用DLT法缩小三维解析数据误差的研究 |
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| 引用本文： | 韩春英,韩甲.运用DLT法缩小三维解析数据误差的研究[J].武汉体育学院学报,2007,41(1):61-64. |
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| 作者姓名： | 韩春英 韩甲 |
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| 作者单位： | 1. 新疆师范大学,体育学院,新疆,乌鲁木齐,830054
2. 上海体育学院,体育教育系,上海,200438 |
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| 摘 要： | 在人体运动的分析中,提取运动信息是必须的。对于人体运动的三维分析,图像系统常常是利用二维图像作三维重构,然后根据重构数据进行运动学、动力学分析。在重构技术中DLT算法由于其众多优点而得到了广泛应用。但是,由于人的运动是复杂而精细的,三维重构误差对运动分析误差的影响成为三维分析研究的关键点。针对三维重构所引起的误差,讨论了如何通过有效的方法来减小误差,以提高三维解析数据的精度,并提出了相关的方法和措施,为编制三维解析系统时提高精度提供可靠的理论依据。
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| 关 键 词： | 运动生物力学 三维解析 数据误差 |
| 文章编号： | 1000-520X（2007）01-0061-04 |
| 修稿时间： | 2006-10-13 |
Reducing data error in three-dimensional digital analysis by DLT Method |
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| HAN Chun-ying,HAN Jia.Reducing data error in three-dimensional digital analysis by DLT Method[J].Journal of Wuhan Institute of Physical Education,2007,41(1):61-64. |
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| Authors: | HAN Chun-ying HAN Jia |
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| Institution: | 1. P.E. CoUege,Xinjiang Normal Univ. ,Urumqi 830054,Chinas2. P.E. Dept. ,Shanghai Inst. Of P. E. ,Shanghai 200438, China |
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| Abstract: | It is necessary to obtain movement information in biomechanical analysis.For three-dimensional digital analysis,image systems usually rebuild two-dimensional image into three-dimensional,and then process the data for further kinematics or dynamics analysis.In rebuilding technique,DLT method is widely applied for its many advantages.However,human movement is complex and subtle.Therefore,the influences of three-dimensional rebuilding error to movement analysis become a key point of three-dimensional digital analysis.This paper discusses methods to reduce the error and provided several ways and means in order to improve data precision in three-dimensional digital analysis. |
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| Keywords: | DLT |
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