Open AccessNon-hogel-based computer generated hologram with occlusion processing between the foreground light field and background hologram
Author(s) -
Dabin Min,
Kyosik Min,
Heejin Choi,
Hanul Lee,
JaeHyeung Park
Publication year - 2022
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.468748
Subject(s) - holography , light field , optics , computer science , holographic display , field (mathematics) , computer vision , computer generated holography , wavefront , artificial intelligence , process (computing) , physics , mathematics , pure mathematics , operating system
A novel technique is proposed to process the occlusion of a background hologram when synthesizing a front scene hologram from its light field. Unlike conventional techniques which process the occlusion in the light field domain after converting the background hologram to its light field, the proposed technique directly processes the occlusion between different domains, i.e., the background hologram and foreground light field. The key idea is to consider the background hologram as a carrier wave illuminating the front scene when synthesizing the front scene hologram from its light field. The proposed technique is not only computationally efficient as it does not require conversion between the light field and hologram domains but also accurate because all angular information of the background hologram and foreground light field is naturally considered in the occlusion processing. The proposed technique was verified by numerical synthesis and reconstruction.