There are two key technical challenges in making moving holograms:
1. Amount of computations and bandwidth required -- simply because of the amount of information involved, which is much more than stereoscopic 3D.
2. A moving display technology that can display these computed holograms. My understanding is that the display needs of the order of one to ten giga-pixels or more to be useful to a non-technical end customer. A common approach then is to tile a large number of displays in cost-no-bar systems.
In this work, they seem to be using an ordinary display to render the holograms, which is why the rendered image is nowhere close to the source content.
Achieving 15 frames per second using a GPU for hologram computation is an advance but does not seem to be extra-ordinary to me, and nor a significant breakthrough. This is because the amount of computations done I guess would be no more than what the display can render, so significantly short of what a good holographic display would need.
1. Amount of computations and bandwidth required -- simply because of the amount of information involved, which is much more than stereoscopic 3D.
2. A moving display technology that can display these computed holograms. My understanding is that the display needs of the order of one to ten giga-pixels or more to be useful to a non-technical end customer. A common approach then is to tile a large number of displays in cost-no-bar systems.
In this work, they seem to be using an ordinary display to render the holograms, which is why the rendered image is nowhere close to the source content.
Achieving 15 frames per second using a GPU for hologram computation is an advance but does not seem to be extra-ordinary to me, and nor a significant breakthrough. This is because the amount of computations done I guess would be no more than what the display can render, so significantly short of what a good holographic display would need.
Here are some links worth checking out: http://www.digitalholography.eu/varasto/05473052.pdf http://www.zebraimaging.com/products/motion-displays