Presentation on theme: "Visibility in Bad Weather from a Single Image Robby T. Tan Imperial College London CVPR. 2008."— Presentation transcript:
Visibility in Bad Weather from a Single Image Robby T. Tan Imperial College London CVPR. 2008
Outline Introduce Model Algorithm Result Future work and conclusion
x is the 2D spatial location. L is the atmospheric light. ρ is the reflectance of an object in the image. β is the atmospheric attenuation coefficient. d is the distance between an object in the image and the observer.
Define image chromaticity Assume distant (d = ), since e^-βd = 0, light chromaticity Assume no effect of scattering particles e^-βd = 1, object chromaticity
By utilizing the light chromaticity (α) we can transform the color of the atmospheric light of the input image into white color Color vectors
Airlight Smoothness Constraint Data term Smooth term