A Study on Augmented Reality

Imagine a world with a technology that creates the 3- dimensional (3D) images of a virtual object around you, with which you can interact, see, hear, smell, and even touch it. Technologies such as computer graphics, virtual reality, and augmented reality together can be used to implement this in real world. Augmented reality actually superimposes virtual objects into the real environment with the real objects for enriching the viewer’s experience. Augmented reality with virtual reality in virtual space also enhances the audience perception by displaying additional information. This paper surveys the field of Augmented Reality, in which 3-D virtual objects are integrated into a 3-D real environment in real time. It describes the medical, manufacturing, visualization, path planning, entertainment and military applications that have been explored. This paper describes the characteristics of Augmented Reality systems, including a detailed discussion of the trade-offs between optical and video blending approaches. Future directions and areas requiring further research are discussed. It describes the main �elds inwhich AR is applied nowadays and important AR devices. Some characteristics of Augmented Reality systems will be discussed and this paper will provide an overview of them.