DCDi
Encyclopedia
DCDi by Faroudja is a digital
enhancement method developed by Faroudja
in 1996.
DCDi technology is primarily used for improving the image quality of low resolution
images. The DCDi algorithm starts by deinterlacing
images, using a number of techniques, including "Bad Edit Detection", which detects 24 frame/s film sources in 30 frame/s video streams, converting the stream back to 24 frame/s. The DCDi algorithm also employs edge detection
to find the moving edges in a scene and adjust the angle of interpolation at each pixel so that the interpolation always follows the edge instead of crossing it. This eliminates staircasing and/or jagged edge artifacts.
These techniques won an Emmy Award from National Academy of Television Arts and Sciences in 2001.
The DCDi technique is often licensed and used in LCD and plasma television sets, as well as DVD and Blu-ray players.
Digital
A digital system is a data technology that uses discrete values. By contrast, non-digital systems use a continuous range of values to represent information...
enhancement method developed by Faroudja
Faroudja
Faroudja Labs was a San Francisco based IP and research company founded by Yves Faroudja.Faroudja specialized in video processing algorithms and products...
in 1996.
DCDi technology is primarily used for improving the image quality of low resolution
Image resolution
Image resolution is an umbrella term that describes the detail an image holds. The term applies to raster digital images, film images, and other types of images. Higher resolution means more image detail....
images. The DCDi algorithm starts by deinterlacing
Deinterlacing
Deinterlacing is the process of converting interlaced video, such as common analog television signals or 1080i format HDTV signals, into a non-interlaced form....
images, using a number of techniques, including "Bad Edit Detection", which detects 24 frame/s film sources in 30 frame/s video streams, converting the stream back to 24 frame/s. The DCDi algorithm also employs edge detection
Edge detection
Edge detection is a fundamental tool in image processing and computer vision, particularly in the areas of feature detection and feature extraction, which aim at identifying points in a digital image at which the image brightness changes sharply or, more formally, has discontinuities...
to find the moving edges in a scene and adjust the angle of interpolation at each pixel so that the interpolation always follows the edge instead of crossing it. This eliminates staircasing and/or jagged edge artifacts.
These techniques won an Emmy Award from National Academy of Television Arts and Sciences in 2001.
The DCDi technique is often licensed and used in LCD and plasma television sets, as well as DVD and Blu-ray players.