05-20-2011, 06:06 PM
[quote name='Brightcolours' timestamp='1305911637' post='8694']
Again, detail is in the luminance, not in the chrominance, There are no "gaps" in the luminance capturing with a Bayer CFA sensor.
[/quote]
Only half the photosites are nominally luminance ones in that model.
I'm thinking in the sampling theory definition of aliasing - the recording of frequency domain data outside that which is desired. I favour the use of oversampling to overcome that, which in sensor terms means more MP density.
I thought I did say that, well, manifestation as a longer way round to saying caused. Subset in the sense it is one way aliasing can appear.
Again, detail is in the luminance, not in the chrominance, There are no "gaps" in the luminance capturing with a Bayer CFA sensor.
[/quote]
Only half the photosites are nominally luminance ones in that model.
Quote:Aliasing is you seeing edges where there are no edges, usually identified by "stair case" lines/edges. Moire patterns are the patterns that appear when sampling a higher frequency than the sensor can handle.
I'm thinking in the sampling theory definition of aliasing - the recording of frequency domain data outside that which is desired. I favour the use of oversampling to overcome that, which in sensor terms means more MP density.
Quote:you can't call moire a kind of aliasing. Better is to say that it is CAUSED by aliasing.
I thought I did say that, well, manifestation as a longer way round to saying caused. Subset in the sense it is one way aliasing can appear.
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