It is clear from the literature that the majority of work in stereoscopic imaging is directed towards the development of modern stereoscopic displays. As costs come down, wider public interest in this technology is expected to increase. This new technology would require new methods of image formation. Advances in stereo computer graphics will of course lead to the creation of new stereo computer games, graphics in films etc. However, the consumer would also like to see real-world stereoscopic images, pictures of family, holiday snaps etc. Such scenery would have wide ranges of depth to accommodate and would need also to cope with moving objects, such as cars, and in particular other people. Thus, the consumer acceptance of auto/stereoscopic displays and 3D in general would be greatly enhanced by the existence of a quality stereoscopic camera. This paper will cover an analysis of existing stereoscopic camera designs and show that they can be categorized into four different types, with inherent advantages and disadvantages. A recommendation is then made with regard to 3D consumer still and video photography. The paper will go on to discuss this recommendation and describe its advantages and how it can be realized in practice.
One recently reported approach to flat panel autostereoscopic 3D displays under investigation at Sharp Laboratories of Europe Ltd. (SLE) uses a high precision patterned optical half wave retarder combined with a re-configurable output polarizer to 'develop' a parallax barrier structure attached to an LCD display panel. Such a barrier is invisible without the polarizer and thus a 2D/3D configurable display can be formed. A discussion of cross talk and white level variation in the 3D mode will be made with reference to Fresnel diffraction in the display. A model will be presented and justified in the light of the panel geometry. This model will be compared with measured cross talk, window structure and white level variation in such a 2D/3D configurable system. The implications that the shape of the transmitting profile has on 3D-display cross talk will be discussed.
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