ColorCode 3-D
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ColorCode 3-D is a color based stereoscopic viewing system deployed in the 2000s that uses amber and blue filters. It is easily confused with anaglyph 3D but differs in a way that it is not using primary colors that anaglyphs do. It is intended to provide the perception of nearly full-color viewing with existing television, digital and print mediums. Danish company ColorCode 3-D ApS distributed the system. Today Swedish company Ogon AB is delivering the successor of the ColorCode 3-D System, the A3D™ System.
ColorCode 3-D is a color based stereoscopic viewing system deployed in the 2000s that uses amber and blue filters. It is easily confused with anaglyph 3D but differs in a way that it is not using primary colors that anaglyphs do. It is intended to provide the perception of nearly full-color viewing with existing television, digital and print mediums. Danish company ColorCode 3-D ApS distributed the system. Today Swedish company Ogon AB is delivering the successor of the ColorCode 3-D System, the A3D™ System.
Technology
One eye (left, amber filter) receives the cross-spectrum color information and one eye (right, blue filter) sees a monochrome image designed to give the depth effect. The human brain ties both images together. Images viewed without filters will tend to exhibit light-blue and yellow horizontal fringing. The backwards compatible 2-D viewing experience for viewers not wearing glasses is improved, generally being better than previous red and green anaglyph imaging systems, and further improved by the use of digital post-processing to minimize fringing. The displayed hues and intensity can be subtly adjusted to further improve the perceived 2-D image, with problems only generally found in the case of extreme blue. The blue filter is centered on 450 nm and the amber filter lets in light at wavelengths at above 500 nm. Wide-spectrum color is possible because the amber filter lets through light across most wavelengths in the spectrum. The ColorCode 3-D patent has expired in 2020. In 2017, Ogon introduced the new A3D-EDR process. EDR stands for Extended Dynamic Range. The new system continues to use amber-blue glasses, but is based on an advanced encoding process that is optimized for modern 4K HDR displays. In contrast to the legacy ColorCode 3-D process, the color dynamic range is higher (16-bit color reproduction instead of 8-bit color reproduction).
References
Text derived from https://en.wikipedia.org/w/index.php?oldid=1377589264 under CC BY-SA 4.0; modifications have been made.