Publications

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.

Search for Publication


Year(s) from:  to 
Author:
Keywords (separated by spaces):

Enhancing Visual Fidelity in Multimodal Augmented Reality Enviornments

B. Knoerlein, G. Székely, and M. Harders
WSCG
2010

Abstract

Our current research focuses on the application of visuo-haptic augmented reality in medical training. The setup developed in this context enables collocated haptic interaction with scene objects. In order to allow natural manipulations, provision of appropriate depth cues becomes a crucial factor. Therefore, we have included fast occlusion handling and shadow synthesis in our augmented environment. The occlusion map is initialized using a plane sweep approach, followed by an edge-based optimization via a Mumford-Shah functional. For obtaining the depth map three head mounted cameras are used and a leftright consistency check is performed to provide robustness against half occlusions. Shadowing is implemented via shadow mapping, considering both real and virtual objects. All steps have been implemented on GPU shaders and are performed in real-time.


Download in pdf format
@InProceedings{eth_biwi_00799,
  author = {B. Knoerlein and G. Székely and and M. Harders},
  title = {Enhancing Visual Fidelity in Multimodal Augmented Reality Enviornments},
  booktitle = {WSCG},
  year = {2010},
  keywords = {}
}