[opendtv] Re: Red camera lenses

Tom Barry wrote:

>But, except for the manufacturing problems of non-square grids it seems to
me a triangular pattern would be better without the extra green resolution
problems I mentioned above. Does anybody sample in close
packed triangles with single pixel color filters, like:

   r g b r g b r g
    b r g b r g b
   r g b r g b r g
    b r g b r g b
   r g b r g b r g
    b r g b r g b
   r g b r g b r g
    b r g b r g b

Probably not, I would guess.  The gain of the green component would have to
jacked up more because of the lower sensor area, so the SNR of green is
lower by 3 dB or so.  Since the green component is the largest component of
luma, the SNR of luma would suffer noticeably also.

Al

 
 
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