Journal
OPTICS EXPRESS
Volume 23, Issue 25, Pages 32465-32470Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.23.032465
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Funding
- JSPS KAKENHI Grant [25330125, 25240015]
- Kayamori Foundation of Information Science Advancement
- Yazaki Memorial Foundation for Science and Technology
- Grants-in-Aid for Scientific Research [25330125] Funding Source: KAKEN
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The cosine function is a heavy computational operation in computer-generated hologram (CGH) calculation; therefore, it is implemented by substitution methods such as a look-up table. However, the computational load and required memory space of such methods are still large. In this study, we propose a simple and fast cosine function approximation method for CGH calculation. As a result, we succeeded in creating CGH with sufficient quality and made the calculation time 1.6 times as fast at maximum compared to using the look-up table of the cosine function on CPU implementation. (C) 2015 Optical Society of America
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