Directional correlational deinterlacing (DCDi)
Faroudja Labs produced upconversion equipment to allow broadcasters to continue using existing equipment to broadcast legacy NTSC material during the transition to HDTV.
Faroudja then developed DCDi® (Directional Correlational Deinterlacing) technology to eliminate the jagginess that conventional upconverters introduced to diagonal edges in video. DCDi's unique algorithm identifies all the moving edges in a scene and adjusts the angle of interpolation at each pixel so that the interpolation always follows the edge instead of crossing it, eliminating staircasing or jagged edge artifacts.
This technology, in combination with its decoding, deinterlacing and enhancement technologies, won an Emmy Award from National Academy of Television Arts and Sciences in 2001. The DCDi algorithm is now incorporated into ST's video controllers that were derived from the Faroudja technology. Many consumer electronics products utilizing this Emmy award-winning technology leverage the Faroudja brand with the "DCDi® by Faroudja", "Faroudja DCDi Cinema®" and "Faroudja DCDi Edge®" logos on their products and marketing materials.