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世界上的虚拟信息的信息系统。它是一种增强现实或混合现实系统。该系统的一个重要特征是它不需要特殊的设备来识别便携式终端的位置。只需使用GPS，它就可以在户外环境中使用。在此研究项目之前，首席调查员已经制作了覆盖虚拟系统SpaceTag的原型，其成本和普及率远高于其他使用多个传感器和设备的混合现实系统，但牺牲了定位的准确性。本研究的目的是从实际可用性的角度对该系统进行评估。由于终端定位的准确性比其他系统差，所以叠加式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，但它应该得到确认。在本研究项目中，我们利用一些学科对覆盖虚拟系统进行了评估，结果表明，我们的覆盖虚拟系统具有一些不同于通常信息系统的特征，如果适当地利用其特殊方面，必然会有一定的应用领域。利用叠加的虚拟系统对三维信息的分布进行了评价，得到了较好的评价。

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.