A chart showing our estimate of sky radiance distribution curves between 350-2500nm from images captured with a digital camera. (Left) We use measurements from a commercial digital camera and a sky scanning spectroradiometer to train machine learning algorithms. (Right) We then utilize this ML model to take new sky images and produce the whole sky spectral illumination in real-time.
A chart showing solar/skydome spectral radiances and comparisons with state-of-the-art simulation models. (a) Our custom built solar- skydome scanner, (b) relative differences between state-of-the-art simulation models and our measured samples over the hemisphere, (c) example of sample points and captured sky imagery, and (d) spectral radiance curves for different sample points in (c).