The Foveon Y-RGB Image Processing Pipeline

Started 1 week ago | Discussions thread
Flat view
xpatUSA Forum Pro • Posts: 15,518
The Foveon Y-RGB Image Processing Pipeline

On the fifth page of a 2006 Foveon paper by Turner/Guttosch there is an interesting (to some) diagram. It shows a group of four Foveon pixels where the green layer is used as luminance at full resolution - but the top, middle and bottom layers are binned 2x2 and used as "chroma", i.e. sub-sampled at 1/4 resolution. Said chroma is therefore processed more speedily and then transformed into CbCr (like in video or a 4:2:0 JPEG).

"Figure 12: Split image pipeline data concept. Chroma data used for color processing is ¼ resolution compared to the panchromatic sharpness data."

Have a look:

Not too hard to see a slight resemblance to the Quattro, eh?

Pipelining is also mention on Page 2 here:

-- hide signature --


 xpatUSA's gear list:xpatUSA's gear list
Sigma DP2 Sigma DP2 Merrill Panasonic Lumix DMC-LX7 Panasonic Lumix DMC-G1 Sigma SD15 +17 more
Flat view
Post (hide subjects) Posted by
Keyboard shortcuts:
FForum PPrevious NNext WNext unread UUpvote SSubscribe RReply QQuote BBookmark MMy threads
Color scheme? Blue / Yellow