His implementation is a hardware-efficient single-step 5x5 pixel algorithm, which performs a zipper-free high-quality Bayer-pattern interpolation up to the theoretical frequency limit, color-anti-aliasing, sharpness enhancement and noise reduction together. The pictures look very convincing. Basler has currently a single-lane FPGA implementation with a throughput of 140 MPix/s using 880 Cyclone V logic cells and a quad lane implementation with a throughput of 400 MPix/s using 2600 logic cells. Jörg says, Basler is interested in licensing, cross-licensing or technology exchange.
To adequately show the relative benefits of Bayer demosaicing algorithms, it is necessary to show color bars, not monochrome. What do the alternating red/blue and red/green bars look like near the resolution limit?
ReplyDeleteHi Dave,
DeleteI completely understand your point of view.
As I explained in my London talk, my point of view is in this case different. I want a very good visible image quality for a human at a very low computation effort. So I never intended to push red/blue and red/green to their respective resolution limit, because a human eye cannot resolve it either. A human eye resolves bright and dark structures with high resolution. So I deliver the maximum possible B/W high frequency reconstruction inside a low-noise color image and this is what I show.
Great work Jorg!
ReplyDeleteIs there any quantified improvement, e.g. in MTF50?