Virtual real-time walkthrough of multi-spectral scene

Zhangye Wang; Xiaoqiu Wang; Zhaoyi Jiang; Changbo Wang; Qunsheng Peng

doi:10.1117/12.650367

2 December 2005 Virtual real-time walkthrough of multi-spectral scene

Zhangye Wang, Xiaoqiu Wang, Zhaoyi Jiang, Changbo Wang, Qunsheng Peng

Proceedings Volume 6045, MIPPR 2005: Geospatial Information, Data Mining, and Applications; 60450L (2005) https://doi.org/10.1117/12.650367
Event: MIPPR 2005 SAR and Multispectral Image Processing, 2005, Wuhan, China

Abstract

Although many virtual walkthrough system for visible scene have been carried out by now, little work has been reported about the virtual walkthrough of multi-spectral scene. In this paper, we present a virtual walkthrough system which can real-time simulate the dynamic multi-spectral scenes. We first construct the target and non-target areas with different kinds of modeling techniques such as geometry and texture based hybrid method, free viewpoint visual hulls and spectral depth image model. To realistically generate the multi-spectral images of objects under changed situations, we present a realistic imaging model which is suitable for both visual and infrared scene. We also propose a new model to simulate the effect of high-dynamic range. To further speed up the rendering process, several simplification and acceleration techniques like LOD, pre-calculation and GPU are adopted. Finally the virtual real-time walkthrough of large-scale multi-spectral scenes is successfully carried out and the average walkthrough speed is larger than 30 frames per second.

Citation Download Citation

Zhangye Wang, Xiaoqiu Wang, Zhaoyi Jiang, Changbo Wang, and Qunsheng Peng "Virtual real-time walkthrough of multi-spectral scene", Proc. SPIE 6045, MIPPR 2005: Geospatial Information, Data Mining, and Applications, 60450L (2 December 2005); https://doi.org/10.1117/12.650367

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