Recently, many postural analysis techniques have been developed in order to reduce the risk of musculoskeletal problems. Methods such as rapid entire body assessment are capable of analyzing the most constant or awkward positions, but the selection of these postures is subjective. To make an objective postural analysis, devices such as electromagnetic trackers can be used continuously during the job task, but utilizing such devices is costly. Therefore, in this study a cost-effective marker-based video processing algorithm is developed for measuring three-dimensional (3D) information regarding both the location and the orientation of human posture. To investigate the precision of the measurements, an experiment was designed. With the average of 2.88 mm and 1.34° for location and orientation, respectively, the algorithm was able to measure six degrees of freedom information regarding 3D space. Furthermore, the precision of the algorithm is found to be significantly affected by the marker pattern.

最近，为了降低肌肉骨骼问题的风险，已经开发了许多姿势分析技术。快速全身评估等方法能够分析最固定或最尴尬的姿势，但这些姿势的选择是主观的。为了进行客观的姿势分析，可以在工作任务期间连续使用诸如电磁跟踪器之类的设备，但使用此类设备的成本很高。因此，在本研究中，开发了一种具有成本效益的基于标记的视频处理算法，用于测量关于人体姿势的位置和方向的三维 (3D) 信息。为了研究测量的精度，设计了一个实验。位置和方向的平均值分别为 2.88 mm 和 1.34°，该算法能够测量关于 3D 空间的六个自由度信息。此外，发现算法的精度受到标记图案的显着影响。