Digital Image Processing (3rd Edition)
Digital Image Processing (3rd Edition)
A projection method to generate anaglyph stereo images
ICASSP '01 Proceedings of the Acoustics, Speech, and Signal Processing, 2001. on IEEE International Conference - Volume 03
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Efficient Prediction Structures for Multiview Video Coding
IEEE Transactions on Circuits and Systems for Video Technology
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In order to visualize stereoscopic videos, it is necessary a pair of videos of a same scene horizontally displaced -- the stereo pair --, thus requiring twice the space to be stored. The anaglyph conversion is a technique in which color components of the stereo pair are removed, being the remaining color components joined to form a single video. With that, it is possible to reduce at least by the half the amount of data to be stored. Unfortunately, the anaglyphic video is not supported by other stereoscopic visualization methods -- they require the stereo pair. Our proposal is to create an anaglyph reversion technique that would enable to recreate the stereo pair from an anaglyph video, which could make stereo information available for other visualization methods. Such reversion is not straightforward, since during the anaglyph conversion some color data is lost. In this paper, we introduce RevGlyph, an approach to the anaglyph reversion by storing the removed color components in a special structure that we call "Color Index Table". We then discuss the results obtained from our experiments with this technique, achieving a good compression rate of 79.64% compared to the original image. The results also showed that the process does not interfere with the stereo depth perception.