Practical Evaluation of An Overlaid Virtual System

叠加虚拟系统是一种信息系统，它将虚拟信息叠加在真实世界上，提供给具有便携式终端的用户。它是一种增强现实或混合现实系统。该系统的一个重要特点是它不需要特殊的设备来识别便携式终端的位置。它只使用GPS，可以在室外环境中使用。成本和普及度比其他使用许多传感器和设备的混合现实系统要好得多，但牺牲了位置的正确性。在这个研究项目之前，首席研究员已经制作了一个名为SpaceTag的覆盖虚拟系统的原型。本研究的目的是从实际可用性的角度对系统进行评价。由于终端定位的正确性比其他虚拟系统差，因此叠加虚拟系统的应用领域应与其他虚拟系统有所不同。例如，我们期望观光导游是一个很好的应用例子，但它需要确认。在这个研究项目中，我们使用了一些被试来评估覆盖的虚拟系统。因此，我们确定了我们的叠加虚拟系统与一般的信息系统有一些不同的特点，如果适当地利用它的特殊方面，一定会有一些应用领域。利用叠加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.