Complexity analysis in holographic 3D video generation

Realizing the very natural video by using holography technology is thought as the ultimate goal of 3D display, and it is still remained as the Holy Grail to be explored. Difficulties lie on two challenging issues: development of the Giga-pixel holographic video display which is feasible and meaningful for commercialization and fast calculation algorithms for the real-time holographic video generation. This presentation reviews the current status in holographic video generation methods in the aspect of the latter issue. The recent algorithms can be categorized into two main concepts of the point source hologram and the Fourier transform hologram. By analyzing the complexity of the algorithms, we realized that there is a common limitation regardless of the type of algorithms. I will address this issue and discuss the research directions to move one step forward for the commercial holographic video displays.