2016 Fiscal Year Research-status Report
Curved computer generated holography for 3D displays by development of paraxial solutions
| Project/Area Number |
16K20948
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| Research Institution | National Institute of Information and Communications Technology |
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Principal Investigator |
ボワズ ジャキン 国立研究開発法人情報通信研究機構, 電磁波研究所電磁波応用総合研究室, 研究員 (00726325)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | Holographic display / Cylindrical holography / Numerical computation / Paraxial solution / 3D display / CGH |
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| Outline of Annual Research Achievements |
The theoretical development and validity analysis of the paraxial solution for computer generated cylindrical holography was considered in the first year. This has been successfully completed as shown below.
1) The paraxial solution was theoretically derived from the non-paraxial solution by approximating the series expansion relations of Bessel functions.
2) The asymptotic analysis was done and the limit of the integrations was investigated. The numerical and theoretical study revealed the converging point of the solution.
3) The validity conditions for the approximation was investigated through Wigner distribution analysis. The sampling requirements, distance of propagation and size of object and hologram and the relationship between them were understood through this study.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
The initial phase of the study involved mostly theoretical study and numerical computations. Due to the experience in similar studies in the past, this research could progress as planned. There were some difficulties due to the position change (Utsunomiya university ---> NICT). However it was overcome at the end, the paraxial solution was developed and the validity conditions were determined. Now these results can be applied to generate the actual cylindrical hologram and test for reconstructions.
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| Strategy for Future Research Activity |
With the paraxial solution developed and validity conditions understood, the next step is the numerically implement the solution with the known conditions to make the actual hologram and test for reconstruction. This involves the following steps
1) Parallel computing source code development for numerical computation of the paraxial solutions using CUDA.
2) Print the computed holograms using the CGH printer at NICT to test the holograms for optical reconstructions.
3) Analyze and improve on the reconstruction results.
4) Publish the results in a conference or journal paper.
5) Investigate practical applications for the method developed.
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| Causes of Carryover |
Since the research work in the first year is completely theoretical study there were no major expenses other than journal publication fee. So majority of the amount is carried over to the next year
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| Expenditure Plan for Carryover Budget |
The actual hologram generation on PC is to be done which requires high performance computers with GPU's. The major part of the money will be used for the purchase of Computer and GPU's. The remaining money will be spent for hologram printing and travel expenses.
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