Augmented reality

About: Augmented reality is a research topic. Over the lifetime, 36039 publications have been published within this topic receiving 479617 citations. The topic is also known as: AR.

Reinventing the familiar: exploring an augmented reality design space for air traffic control

Abstract: This paper describes our exploration of a design space for an augmented reality prototype. We began by observing air traffic controllers and their interactions with paper flight strips. We then worked with a multi-disciplinary team of researchers and controllers over a period of a year to brainstorm and prototype ideas for enhancing paper flight strips, We argue that augmented reality is more promising (and simpler to implement) than the current strategies that seek to replace flight strips with keyboard/monitor interfaces. We also argue that an exploration of the design space, with active participation from the controllers, is essential not only for designing particular artifacts, but also for understanding the strengths and limitations of augmented reality in general.

Arbitrary object tracking augmented reality applications

Abstract: Video images of objects in a real-world environment are taken from the perspective of a viewer. The user's field of view may be captured in the video images that are processed to select a segment of the video image or an object depicted in the video image. An image such as a computer-generated annotation or graphic overlay way be registered to the segment, and therefore track the segment from the user's field of view of the segment, without prior knowledge of the spatial relationship of the segment to the real-world environment according to a centroid for an interframe difference of the video image associated with the selected object. The image may be displayed in the user's field of view or in the video image. The computer-generated image tracks the movement of the segment with respect to the video image.

A stereoscopic video see-through augmented reality system based on real-time vision-based registration

Abstract: In an augmented reality system, it is required to obtain the position and orientation of the user's viewpoint in order to display the composed image while maintaining a correct registration between the real and virtual worlds. All the procedures must be done in real time. This paper proposes a method for augmented reality with a stereo vision sensor and a video see-through head-mounted display (HMD). It can synchronize the display timing between the virtual and real worlds so that the alignment error is reduced. The method calculates camera parameters from three markers in image sequences captured by a pair of stereo cameras mounted on the HMD. In addition, it estimates the real-world depth from a pair of stereo images in order to generate a composed image maintaining consistent occlusions between real and virtual objects. The depth estimation region is efficiently limited by calculating the position of the virtual object by using the camera parameters. Finally, we have developed a video see-through augmented reality system which mainly consists of a pair of stereo cameras mounted on the HMD and a standard graphics workstation. The feasibility of the system has been successfully demonstrated with experiments.

Collaborative Augmented Reality for Outdoor Navigation and Information Browsing

Abstract: Augmented reality (AR) can provide an excellent user interface for visualization in a mobile computing application. The user’s view is augmented with location based information at the correct spatial location, thus providing an intuitive way of presenting such information. In this work we demonstrate the use of AR for collaborative navigation and information browsing tasks in an urban environment. A navigation function allows one or more users to roam through a city and guides them to selected destinations. Information browsing presents users with information about objects in their surrounding. Both functions feature support for collaboration. The developed system does not only concentrate on the user interface aspects but also provides a scalable infrastructure to support mobile applications. To this end we developed a 3-tier architecture to manage a common data model for a set of applications. It is inspired by current Internet application frameworks and consists of a central storage layer using a common data model, a transformation layer responsible for filtering and adapting the data to the requirements of a particular applications on request, and finally of the applications itself.

Practical motion capture in everyday surroundings

Abstract: Commercial motion-capture systems produce excellent in-studio reconstructions, but offer no comparable solution for acquisition in everyday environments. We present a system for acquiring motions a...