Thursday, January 05, 2012

Fujifilm DSLR Uses New Color Filter Pattern

A number of sources in DSLR community discuss prematurely leaked Fujifilm PR on its new DSLR. The PR says that the camera "features a custom-developed 16-megapixel APS-CMOS sensor incorporating a new filter array and the company's proprietary EXR processor technology". The French magazine Reponses Foto gives few more details on the new color filter and claims that the new sensor uses a random 6-pixel color filter pattern randomized pattern with 6 pixels that eliminates Moire patterns, so no anti-aliasing filter is needed.

The new X-PRO 1 camera is supposed to be officially presented at CES next week. I hope more details on color filter would be released.

Thanks to SH for sending me the link!
Posted by Vladimir Koifman at 21:25

3 comments:

  1. Albert TheuwissenJanuary 5, 2012 at 10:48 PM

    The comment on the 6 is a bit misleading. As far as I can understand, the French paper refers to a randomized pattern with 6 pixels, wheras the Bayer pattern is based on 4 (according to the paper). This is not clear to me.
    On the other hand, a randomized pattern is pretty complex for "demosaicing" as well as for colour correction matrixing, because with a randomized pattern, pixels with the same colour filter can have different cross-talks. This is not the case with a Bayer pattern. Test that were done by one of my students (in the previous century) showed that with a semi-random pattern of 8x8 pixels it was not possible to completely eliminate Moire patterns. But I am very open to be surprised by Fuji !

    ReplyDelete
  2. Vladimir KoifmanJanuary 5, 2012 at 11:23 PM

    Sorry for the translation error. Not knowing French myself, I just asked somebody to help with it and this is what I was told. I'm now changing the wording to yours.

    Thanks!

    ReplyDelete
  3. AnonymousJanuary 7, 2012 at 8:23 PM

    This person has been posting a lot of non-released details on the new camera. Here is some related to a sensor that clears up the French translation as well as a related patent. We'll know all on Monday!!

    http://forums.dpreview.com/forums/read.asp?forum=1020&message=40255202

    16MP APS-C X-Trans CMOS sensor, with a newly developed filter array. RGB pixels in 6*6 random pixel sets, thus eliminating the need for low-pass filter.

    http://forums.dpreview.com/forums/read.asp?forum=1020&message=40248766

    ReplyDelete

All comments are moderated to avoid spam and personal attacks.

Subscribe to: Post Comments (Atom)