Supporting users for a competent interaction with 3 dimensional virtual worlds can increase their user experience within the immersive education environment. User manuals and other guide documents are popular supporting instruments for training new users of a software system. Quite often these documents have many screenshots of the application user interface which are used to steer a new user t...

Numerical simulations play an important role in solving complex engineering problems and have the potential to revolutionize medical decision making and treatment strategies. In this paper, we combine the rapid model-based design, control systems and powerful numerical method strengths of MATLAB/Simulink with the simulation and human movement dynamics strengths of OpenSim by developing a new in...

Estimating the position of the bones from optical motion capture data is a challenge associated with human movement analysis. Bone pose estimation techniques such as the Point Cluster Technique (PCT) and simulations of movement through software packages such as OpenSim are used to minimize soft tissue artifact and estimate skeletal position; however, using different methods for analysis may pro...

As modern weapon systems become complex in dynamics and operational environments, evaluating their effectiveness becomes a hard task, accordingly. In order to analyze the effectiveness of a weapon system realistically, we have to consider not only dynamics of the weapon system, but also natural environments under which the weapons are operated, and operational strategies with which the weapons ...

In this research, attempts are made to conduct concrete muscle fatigue analysis of arbitrary motions on OpenSim, a digital human modeling platform. A plug-in is written on the base of a muscle fatigue model, which makes it possible to calculate the decline of forceoutput capability of each muscle along time. The plug-in is tested on a three-dimensional, 29 degree-of-freedom human model. Motion ...

Educational activities previously performed in Second Life are now more and more move moving to other alternatives. This study concentrates on the features of Second Life and its open-source alternative, OpenSim that affect the results of the in-world educational activities. The need for educators to take these features into account is another focus of this study which also aims to highlight th...

Computer modeling, simulation and optimization are powerful tools that have seen increased use in biomechanics research. Dynamic optimizations can be categorized as either data-tracking or predictive problems. The data-tracking approach has been used extensively to address human movement problems of clinical relevance. The predictive approach also holds great promise, but has seen limited use i...

The U.S. Army is continuously looking for novel and innovative methods and technology to enhance operational and tactical simulation-based training (SBT) for its soldiers. Through the Military OpenSimulator Enterprise Strategy (MOSES) project, the U.S. Army Research Laboratory is identifying critical software features that will improve the next generation of military simulation’s training effec...