Optimization of the switch-back technique used for fast occlusion-processing in computer holography

Sachio Masuda; Kyoji Matsushima; Sumio Nakahara

doi:10.1117/12.2075998

10 March 2015 Optimization of the switch-back technique used for fast occlusion-processing in computer holography

Sachio Masuda, Kyoji Matsushima, Sumio Nakahara

Proceedings Volume 9386, Practical Holography XXIX: Materials and Applications; 93860L (2015) https://doi.org/10.1117/12.2075998
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

A method called the switch-back technique allows us to drastically reduce computation time of occlusion-processing based on the polygon-by-polygon silhouette light-shielding. It is also reported that further reduction of computation time can be achieved by splitting an object to some sub-models along with depth direction. However, computational cost for numerical propagation between the sub-models increases with increasing the number of sub-models. As a result, there is an optimum number of sub-models. In this paper, we propose a technique to predict the optimum number of sub-models by estimating the total computational complexity of the switch-back technique with object splitting.

Citation Download Citation

Sachio Masuda, Kyoji Matsushima, and Sumio Nakahara "Optimization of the switch-back technique used for fast occlusion-processing in computer holography", Proc. SPIE 9386, Practical Holography XXIX: Materials and Applications, 93860L (10 March 2015); https://doi.org/10.1117/12.2075998

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