Prior to talking about the future of something, it is often customary to discuss a bit about its past as well. We are going to go do the same thing with holography, which was invented sometime during the 1940s. A hologram is essentially a recording of interference light pattern in a photosensitive medium with the help of a laser. During the last four decades, we have witnessed quite a playful usage of this amazing thing by collaborating engineers and artists. The exciting environment used by them kept changing and shifting continuously since the origin of holography as new lasers, holographic emulsions, chemistry and techniques were developed.
At present, the gap between present and future that needs to be filled for successful production of moving holograms can be possibly bridged by some unique projection techniques. There are several groups currently working on hybrid systems that are mostly under wraps. However, they seem to be quite promising for projecting stereo 3D in high definition. These might be very engaging as well as effective, and can even help to make creative productions.
Another approach taken by some firms is creation of content rendered out as video right from 3D animated computer models into several different views of camera or shot using the same quantity of digital video cams so as to create a live scenario and project al views side to side on a special holographic rear projection film. That would enable the film to create a continuous area of viewing from many distinct perspective views. When a person moves one side to another, he or she will be able to look around inside a moving 3-dimensional scene. Just like a real hologram, it will not necessitate glasses to ensure proper viewing experience.
Various other groups are making attempts to work with different mechanical, scanning approaches for creating volumetric images which appear 3-dimensional. Though these would not be true holograms, they can be very intriguing to explore.
Developments in the recording materials combined with new diode lasers and 3-wavelength laser systems have also made it possible to make advances in the realm of analog holography. Now, there are panchromatic emulsions that can record full spectrum of wavelengths of visiblelight. Such materials have already been used for making 3D images of real-life objects that are convincing enough to fool anyone. Without proper observation, it can be hard to tell the difference between them and the objects of which the images they are.