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Human movement analysis using stereophotogrammetry. Part 2: instrumental errors.

机译：使用立体摄影测量法进行人体运动分析。第2部分：工具错误。

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This paper reviews the main aspects involved with the management of instrumental errors associated with video-based optoelectronic stereophotogrammetry. Insights on how such errors propagate to kinematic quantities are of great interest in the field of human movement analysis to improve the precision and reliability of measurements. The review focuses on the technical assessment and analytical compensation procedures to cope with instrumental errors. Relevant contributions dealing with intrinsic sources of systematic and random errors, such as the issues concerning camera calibration and filtering and smoothing of marker position data, are presented. Procedures for marker imaged processing, and missing marker recovery are also surveyed. Methods for checking the accuracy and precision of stereophotogrammetric systems are then reviewed. Finally, since the desired outcome of the movement measurements is a reliable estimate of body segment kinematics, state-of-the-art techniques proposed for minimization of error propagation arising from a cluster of external markers are described.
机译：本文回顾了与基于视频的光电立体摄影测量法相关的仪器错误管理的主要方面。关于这样的误差如何传播到运动量的见解在人体运动分析领域中非常重要，以提高测量的精度和可靠性。审查侧重于技术评估和分析性补偿程序，以应对工具错误。提出了有关系统性和随机性错误的内在来源的相关贡献，例如与相机校准，标记位置数据的滤波和平滑有关的问题。还对标记图像处理和丢失标记恢复的过程进行了调查。然后回顾了检查立体摄影测量系统的准确性和精度的方法。最后，由于运动测量的期望结果是人体运动学的可靠估计，因此描述了为最小化由一组外部标记引起的误差传播而提出的最新技术。

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