Realistic rendering of foggy scene is important in game development and virtual reality. Traditional methods have many parameters\nto control or require a long time to compute, and they are usually limited to depicting a homogeneous fog without considering the\nfoggy scene with heterogeneous fog. In this paper, a new rendering method based on trans mission map estimation is proposed.We\nfirst generate perlin noise image as the density distribution texture of heterogeneous fog. Then we estimate the transmission map\nusing the Markov random field (MRF) model and the bilateral filter. Finally, virtual foggy scene is realistically rendered with the\ngenerated perlin noise image and the transmission map according to the atmospheric scattering model. Experimental results show\nthat the rendered results of our approach are quite satisfactory.
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