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stereoscopic vision is often referred to as the anaglyph method. The main advan-
tage of anaglyph is that all signals and displaying requirements match 2D display-
ing requirements, thus existing storage, transmission and display systems can
readily be used to show 3D imagery, only coloured glasses are needed (which is
inexpensive, and often packaged together with an anaglyph “3D” DVD). This is
possible because the left and right images are overlapped and separated by means
of colour differences. A sample anaglyph image is shown in Fig. 2 where the two
differently tinted overlapped images are clearly visible. This causes the main dis-
advantage of this technology, that is, colours are not preserved correctly, and
ghosting artefacts are also present. Because of its simplicity, anaglyph stereo-
scopic videos are appearing on YouTube, and also hundreds of games support
anaglyph mode using NVIDIA 3D Vision™ Discover.
Fig.2 Anaglyph image. Image courtesy of Kim Scarborough.
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