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Computational load reduction by avoiding the recalculation of angular redundancy in computer-generated holograms

Jia, J and Chen, J and Chu, D (2019) Computational load reduction by avoiding the recalculation of angular redundancy in computer-generated holograms. ETRI Journal, 41. pp. 52-60. ISSN 1225-6463

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Abstract

© 2019 ETRI A fast hologram calculation approach is proposed to reduce computational load by avoiding the recalculation of redundancy information. In the proposed method, the hologram is divided into several sub-holograms that record and reconstruct different views of 3D objects. The sub-hologram is generated from its adjacent calculated sub-holograms by only adding the holograms of difference images between an adjacent pair of views. The repetitive information of two adjacent views is called angular redundancy. Therefore, avoiding the recalculation of this angular redundancy can considerably reduce the computational load. Experimental results confirm that the proposed method can reduce the computational time for the statue head, rabbits, and car to 4.73%, 6.67%, and 10.4%, respectively, for uniform intensity, and to 56.34%, 57.9%, and 66.24%, respectively, for 256 levels intensity, when compared to conventional methods.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 14 Dec 2018 20:10
Last Modified: 18 Feb 2021 15:42
DOI: 10.4218/etrij.2018-0454