Accurate Spectral Super-resolution from Single RGB Image Using Multi-scale CNN

10 Jun 2018Yiqi YanLei ZhangJun LiWei WeiYanning Zhang

Different from traditional hyperspectral super-resolution approaches that focus on improving the spatial resolution, spectral super-resolution aims at producing a high-resolution hyperspectral image from the RGB observation with super-resolution in spectral domain. However, it is challenging to accurately reconstruct a high-dimensional continuous spectrum from three discrete intensity values at each pixel, since too much information is lost during the procedure where the latent hyperspectral image is downsampled (e.g., with x10 scaling factor) in spectral domain to produce an RGB observation... (read more)

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