A big step toward the practical application of 3-D holography with high-performance computers

phys.org | 11/28/2018 | Staff
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Japanese computer scientists have developed a special purpose computer that can project high-quality three-dimensional (3-D) holography as video. The research team led by Tomoyoshi Ito, who is a professor at the Institute for Global Prominent Research, Chiba University, has been working to increase the speed of the holographic projections by developing new hardware.

Holography has a long history. Since 1960 when the first laser was invented, many works involving laser holograms have been produced. For digitalizing these analog technologies and developing electron holography techniques to project 3-D holography images as video, computing powers with more than 10 frames per second and 1 trillion pixels per frame are required. Therefore, hardware development, as well as corresponding software development, represents some of the biggest challenges for researchers in this field.

Object - Data - Factors - Parallax - Motion

Also, to make a 3-D object from two-dimensional (2-D) data, it is necessary to consider several factors including the binocular parallax, motion parallax, convergence angle, focus adjustment, and estimates made based on human experience. Currently, general 3-D televisions (TVs) use binocular parallax for the stereoscopy, but children cannot use this technology because it has the potential to damage their health, a risk that is related to the difference between the distances that a brain perceives and those that the eyes' focus on. Many researchers around the world have been investing in video holography, which may allow more people to enjoy 3-D TVs safely.

Ito, who is an astronomer and a computer scientist, began working on specially designed computers for holography, called HORN, in 1992. The HORN-8, which adopts a calculation method, the amplitude type, for adjusting the intensity of light, was recognized as...
(Excerpt) Read more at: phys.org
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