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2009 IEEE Conference on Computer Vision and Pattern Recognition
We extend photometric stereo to make it work with internet images, which are typically associated with different viewpoints and significant noise. For popular tourism sites, thousands of images can be obtained from internet search engines. With these images, our method computes the global illumination for each image and the surface orientation at some scene points. The illumination information can then be used to estimate the weather conditions (such as sunny or cloudy) for each image, sincedoi:10.1109/cvprw.2009.5206732 fatcat:7g7kiq6c7fdnbfewk6kjt2we7q