Hig res in studio scenes

Started 5 months ago | Discussions thread
evan ts Forum Member • Posts: 64
Re: Hig res in studio scenes

knickerhawk wrote:

evan ts wrote:

There are many algorithms that can combine many low-res images into a single hi-res image.
(This one was announced 15 yeas ago: https://users.soe.ucsc.edu/~milanfar/publications/journal/SR-challengesIJIST.pdf )

I think that Silkypix just uses a newer and better hi-res algorithm than ACR.

But that's not what's going on at the raw converter stage to a HiRes raw file. The camera internally merges the subframes using a fixed algorithm (perhaps similar to what's discussed in the linked paper) and outputs an ordinary looking Bayer-style raw file, albeit a much larger one constructed from the subsampling of each normal-sized pixel position. The raw converters are not called upon to do anything different with one of these HiRes raws than they do with normal raws.

The hi-res takes 8 Bayer-shots (2 RGB-shots). The key point is, pixel size is still the same as a normal shot. When all shots are stacked together, pixels are overlapped. So we need a good algorithm to separate the information of overlapped pixels.

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