Choi Hyo-Rim, Kim TaeYong
Department of Advanced Imaging Science, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 156-756, Korea.
Sensors (Basel). 2017 Aug 17;17(8):1893. doi: 10.3390/s17081893.
Cyber-physical systems, which closely integrate physical systems and humans, can be applied to a wider range of applications through user movement analysis. In three-dimensional (3D) gesture recognition, multiple sensors are required to recognize various natural gestures. Several studies have been undertaken in the field of gesture recognition; however, gesture recognition was conducted based on data captured from various independent sensors, which rendered the capture and combination of real-time data complicated. In this study, a 3D gesture recognition method using combined information obtained from multiple sensors is proposed. The proposed method can robustly perform gesture recognition regardless of a user's location and movement directions by providing viewpoint-weighted values and/or motion-weighted values. In the proposed method, the viewpoint-weighted dynamic time warping with multiple sensors has enhanced performance by preventing joint measurement errors and noise due to sensor measurement tolerance, which has resulted in the enhancement of recognition performance by comparing multiple joint sequences effectively.
网络物理系统将物理系统与人类紧密结合,通过用户运动分析可应用于更广泛的领域。在三维(3D)手势识别中,需要多个传感器来识别各种自然手势。手势识别领域已经开展了多项研究;然而,手势识别是基于从各种独立传感器捕获的数据进行的,这使得实时数据的捕获和组合变得复杂。在本研究中,提出了一种利用从多个传感器获得的组合信息的3D手势识别方法。通过提供视点加权值和/或运动加权值,该方法可以在不考虑用户位置和运动方向的情况下稳健地执行手势识别。在所提出的方法中,具有多个传感器的视点加权动态时间规整通过防止由于传感器测量容差引起的关节测量误差和噪声而提高了性能,这通过有效地比较多个关节序列提高了识别性能。