Real-time generation of infrared dynamic sky scene

Shiguang Liu; Zhangye Wang; Zheng Gong; Pengcheng Wu; Qunsheng Peng

doi:10.1117/12.650252

2 December 2005 Real-time generation of infrared dynamic sky scene

Shiguang Liu, Zhangye Wang, Zheng Gong, Pengcheng Wu, Qunsheng Peng

Proceedings Volume 6045, MIPPR 2005: Geospatial Information, Data Mining, and Applications; 604502 (2005) https://doi.org/10.1117/12.650252
Event: MIPPR 2005 SAR and Multispectral Image Processing, 2005, Wuhan, China

Abstract

In this paper we propose a real-time infrared sky image synthesis model based on atmospheric optics, infrared physics and hardware acceleration techniques of computer graphics. We can real-time generate infrared sky image at different time and from changing viewpoint realistically. In our model, we first establish an infrared image synthesis for clear sky. Then we determine the infrared radiation and distribution of stars in the sky at given time and location. Based on infrared star catalogue, we propose a new rule to determine the infrared star magnitude in the given infrared receiving waveband. By series of coordinate change, infrared star distribution in the sky at given time and at given viewpoint can be drawn. Total IR radiation of the cloud includes IR self emitted radiation of the cloud, IR reflected radiation from the surface of the earth and IR sun radiance are calculated. Using the particle systems, the cloud is modeled and it can be rendered on a series of dynamically image planes. Finally by adopting the hardware accelerating techniques of computer graphics, the infrared dynamic sky scenes could be successfully drawn in real time.

Citation Download Citation

Shiguang Liu, Zhangye Wang, Zheng Gong, Pengcheng Wu, and Qunsheng Peng "Real-time generation of infrared dynamic sky scene", Proc. SPIE 6045, MIPPR 2005: Geospatial Information, Data Mining, and Applications, 604502 (2 December 2005); https://doi.org/10.1117/12.650252

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