Practical Evaluation of An Overlaid Virtual System

叠加虚拟系统是向具有便携式终端的用户提供叠加在真实的世界上的虚拟信息的信息系统。它是一种增强或混合现实系统。该系统的一个关键特征是它不需要特殊的设备来识别便携式终端的位置。仅使用GPS，可以在户外环境中使用。通过牺牲位置的正确性，成本和普及性比使用许多传感器和设备的其他混合现实系统要好得多。在这个研究项目之前，首席研究员已经原型化了名为SpaceTag的叠加虚拟系统。本研究的目的是从其实际可用性的角度来评估系统。由于终端定位的准确性比其他系统差，叠加虚拟系统的应用领域应该不同于其他虚拟系统。例如，我们期待观光导游是一个很好的应用例子，但这应该得到确认。在本研究计画中，我们邀请了一些研究对象来评估重叠式虚拟系统，结果我们确认重叠式虚拟系统具有一些不同于一般资讯系统的特性，若能适当利用其特性，必定会有一定的应用领域。我们还评估了三维信息的分布与叠加的虚拟系统，并获得了良好的评价。

An overlaid virtual system is an information system that gives virtual information overlaid onto the real world to users with portable terminals. It is a kind of augmented or mixed reality systems. A crucial characteristic of this system is that it does not need special devices to identify the location of portable terminals. Using only GPS, it can be used in outdoor environments. Cost and popularity is much better than other mixed reality systems using many sensors and devices, by sacrificing the correctness of location.Before this research project, the head investigator had been prototyped overlaid virtual systems named SpaceTag. The aim of this research is to evaluate the system from the viewpoint of its practical usability. Because the correctness of terminal location is worse than other systems, the application area of overlaid virtual system should be different from other virtual systems. For example, we are expecting that sightseeing guide is a good example of application, but it should be confirmed. In this research project, we employed some subjects to evaluate the overlaid virtual system.As a result, we have confirmed that our overlaid virtual system has some different features from usual information systems, and there must be some application area if its special aspects are appropriately utilized. We also evaluated distribution of 3D information with the overlaid virtual system, and obtained good evaluation.