Wireless inertial sensor network for ubiquitous human motion capture

动作捕捉是指记录一个或多个人或物体的运动过程。它是许多行业的基本技术，包括娱乐（游戏和电影制作），运动科学（人为因素和动力学），虚拟现实（训练和模拟）和健康（诊断和监测）。在游戏和电影制作中，它被用来记录人类演员或运动员的动作，并利用这些信息来制作3D电脑动画中的数字角色模型。该战略项目拨款（SPG）提案的主要目标是开发一种创新的无线实时3D运动跟踪系统，用于游戏和电影制作中的真正动态应用。这项工作的一个关键技术要素是最先进的基于mems的三轴惯性传感器的出现，该传感器可以与新兴的短距离无线技术集成，以实现无处不在的内部和多主体运动跟踪系统，能够进行现场测量。与传统的动作捕捉（MoCap）系统（如“黄金标准”光学系统）相比，只要系统的位置精度和电池寿命允许，拟议的无线惯性动作捕捉（“wiMoCap”）系统具有真正的“动态”和无限范围的潜力。因此，利用新颖的传感器融合算法、低功耗无线传感器网络（WSN）和分布式数据压缩开发低功耗无漂移的wiMoCap系统是本项目提案的主要重点。基于惯性传感器的动作捕捉是一种新兴的、发展最快的动作捕捉技术。这个拟议中的多学科项目是两位博士的合作项目。西蒙弗雷泽大学（SFU）的Park （PI）、Lee和Bajic以及世界上最大的电子游戏发行商/开发商之一EA （EA）。特别是EA Canada， EA Capture （Burnaby， BC）将为该项目做出重要的实物贡献，因为拟议的wiMoCap技术的开发与其业务和研发利益密切相关。拟议中的技术提供了各种技术动作捕捉创新，可以在未来五年内彻底改变游戏和电影行业。

Motion capture refers to the process of recording movement of one or more persons or objects. It serves as an essential technology to many industries, including entertainment (gaming and filmmaking), movement science (human factors and kinetics), virtual reality (training and simulations), and health (diagnostics and monitoring). In gaming and filmmaking, it is used to record actions of human actors or athletes, and using that information to animate digital character models in 3D computer animation. The main goal of this Strategic Project Grants (SPG) proposal is to develop an innovative wireless, real-time 3D motion tracking system for true ambulatory applications in gaming and filmmaking. A key technological element in this endeavor is the advent of the state-of-the-art MEMS-based tri-axial inertial sensors that can be integrated with emerging short-range wireless technologies to implement a ubiquitous intra- and multi-subject motion tracking system that is capable of on-field measurements. In comparison to traditional motion capture (MoCap) systems such as the 'gold-standard' optical systems, the proposed wireless inertial MoCap ("wiMoCap") system has the potential to be truly 'ambulatory' and unlimited in range, as long as the system's positional accuracy and battery life allows. Therefore, the development of a low-power and drift-free wiMoCap system using novel sensor fusion algorithms, low-power wireless sensor networks (WSN) and distributed data compression is the main focus of this project proposal. Inertial sensor-based motion capture is an emerging and fastest growing MoCap technology. The proposed multidisciplinary project is a collaborative venture between Drs. Park (PI), Lee and Bajic of the Simon Fraser University (SFU) and Electronic Arts ("EA"), one of the largest video game publishers/developers in the world. EA Canada, EA Capture (Burnaby, BC) in particular, will make significant in-kind contributions to the project as the development of the proposed wiMoCap technology is intimately in-line with its business and R&D interests. The proposed technology offers various technical MoCap innovations that can revolutionize the gaming and filming industries within the next five years.