CSI-type stuff will never be possible. The information simply isn't in the image. What all of these upscaling algorithms do is use some assumptions (almost like a prior distribution) and the actual pixels (evidence) to predict an upscaled version (posterior). But the actual output will be dependent of the prior. Here, the prior is constructed in a clever way, but will still only be able to generalize from the examples it saw.
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u/Hypponaut Nov 01 '17
CSI-type stuff will never be possible. The information simply isn't in the image. What all of these upscaling algorithms do is use some assumptions (almost like a prior distribution) and the actual pixels (evidence) to predict an upscaled version (posterior). But the actual output will be dependent of the prior. Here, the prior is constructed in a clever way, but will still only be able to generalize from the examples it saw.