This is a patent that resulted from my work at Philips Research Labs in Endhoven, The Netherlands. I was working in the Image Sensors division (later sold to DALSA) when I developed this pixel defect correction algorithm. You can read the full patent.
Citation: A. Tanbakuchi, "Method and apparatus for adaptive pixel correction of multi-color matrix," US 7477781 B1, Jan 13, 2009. PDF.