Acquiring a Radiance Distribution to Superimpose Virtual Objects onto a Real Scene

Augmented Reality(AR) technology aims to integrate virtual objects with real scene by using computer technology and to realize real scenes enhancing. This paper presented a research method of using osgART to develop AR application programs in MFC (Microsoft Foundation Classes) environment, and discussed some related techniques. Corresponding procedures are given in each section, and a design example for product evaluation and exhibition is presented. This example was developed by the presented method in this paper, and its system ran in good condition after repeated tests. From the results of this paper, it can be seen that by using MFC and osgART to develop AR application programs, the seamless integration and interaction between the real environment and virtual objects can been easily realized, which will be benefit to improve the efficiency of developing AR application programs.

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GPU-Based Real-Time Occlusion in an Immersive Augmented Reality Environment

Journal of Computing and Information Science in Engineering ◽

10.1115/1.3130144 ◽

2009 ◽

Vol 9 (2) ◽

Cited By ~ 5

Author(s):

Yuzhu Lu ◽

Shana Smith

Keyword(s):

Virtual Reality ◽

Augmented Reality ◽

Real Time ◽

Graphic Processing Unit ◽

Prototype System ◽

Processing Unit ◽

Virtual Objects ◽

Remote Cameras ◽

Real Scene ◽

And Performance

In this paper, we present a prototype system, which uses CAVE-based virtual reality to enhance immersion in an augmented reality environment. The system integrates virtual objects into a real scene captured by a set of stereo remote cameras. We also present a graphic processing unit (GPU)-based method for computing occlusion between real and virtual objects in real time. The method uses information from the captured stereo images to determine depth of objects in the real scene. Results and performance comparisons show that the GPU-based method is much faster than prior CPU-based methods.

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Mapping Virtual Objects into Real Scene

Developments in Applied Artificial Intelligence - Lecture Notes in Computer Science ◽

10.1007/3-540-45034-3_7 ◽

2003 ◽

pp. 62-71

Author(s):

Yi L. Murphey ◽

Hongbin Jia ◽

Michael Del Rose

Keyword(s):

Virtual Objects ◽

Real Scene

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GPU-Based Real-Time Occlusion in a CAVE-Based Augmented Reality Environment

Volume 2: 27th Computers and Information in Engineering Conference, Parts A and B ◽

10.1115/detc2007-35462 ◽

2007 ◽

Author(s):

Yuzhu Lu ◽

Shana Smith

Keyword(s):

Virtual Reality ◽

Augmented Reality ◽

Real Time ◽

Prototype System ◽

Stereo Images ◽

The Real ◽

Virtual Objects ◽

Remote Cameras ◽

Real Scene ◽

And Performance

In this paper, we present a prototype system which makes use of the characterisitcs of CAVE-based virtual reality to enhance immersion in an augmented-reality environment. The system integrates virtual objects into a real scene captured by a set of stereo remote cameras. We also developed a GPU-based method for computing occlusion between real and virtual objects, in real time. The method uses information from the captured stereo images to determine depth of objects in the real scene. Results and performance comparisons show that the GPU-based method is much faster than prior CPU-based methods.

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