Quote:
Originally Posted by benwaggoner
What kind of sensor?
Oversampling is always a good thing. Having a Beyer source at the same resolution as a colocated output was okay with SDR output, as the camera's much higher dynamic range provided additional details. But a 4K Beyer sensor for 4K 4:2:0 HDR content can be suboptimal versus capturing more, since the output can use the captured dynamic range.
I doubt it's that material in practice, though, since visually resolving individual 4K pixels is pretty impossible in moving video outside of specific test content. But supersampling can reduce noise some (although having smaller sensor elements adds per-element noise, so it can be pretty complex to model and predict).
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It is an RGBW sensor using a 6x6 grid (6xG, 6xB, 6xR plus 18x white pixels).
Here the link to the patent app:
https://patents.google.com/patent/US...ttner&sort=new
Personally I think it is a step in the wrong direction, sure, it may be that this configuration turns out to be superior dynamic range wise, but the demosaicing is more complex (and perhaps even theoretically "wrong").
What we really need is to eventually get rid of Bayer or other sensors that require demosaicing.
Requiring demosaicing, just like interlaced video, chroma subsampling, fixed-bit code values, all those things are not features they are hacks.