Open AccessUltrafast layer based computer-generated hologram calculation with sparse template holographic fringe pattern for 3-D object
Author(s) -
Hak Gu Kim,
Yong Man Ro
Publication year - 2017
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.030418
Subject(s) - holography , optics , holographic display , computer science , pixel , ultrashort pulse , artificial intelligence , object (grammar) , layer (electronics) , computer vision , position (finance) , spatial light modulator , physics , materials science , laser , finance , economics , composite material
In this paper, we propose a new ultrafast layer based CGH calculation that exploits the sparsity of hologram fringe pattern in 3-D object layer. Specifically, we devise a sparse template holographic fringe pattern. The holographic fringe pattern on a depth layer can be rapidly calculated by adding the sparse template holographic fringe patterns at each object point position. Since the size of sparse template holographic fringe pattern is much smaller than that of the CGH plane, the computational load can be significantly reduced. Experimental results show that the proposed method achieves 10-20 msec for 1024x1024 pixels providing visually plausible results.