| Presentation | 2005/6/16 Probablistic Inference to the Problem of Phase Retrieval in Adaptive Optics Yohei SAIKA, Hidetoshi NISHIMORI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We formulate the problem of phase retrieval in adaptive optics using the Markov-random field model based on the maximizer of the posterior marginal (MPM) estimate. The property of our method is to retrieve wave-fronts precisely using the model prior selected due to the sensitivity of measurement by optical instruments. Then, the Monte Carlo simulation for the typical wave-front in adaptive optics shows the results that the MPM estimate works better than the conventional least-squares estimation if we appropriately set hyperparameters, and that the performance of our method is improved using the model prior with interactions enhansing smooth structures between neighboring sites and the uniform field. We also show that these results are qualitatively confirmed by the replica theory established in the theory of spin glasses. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | adaptive optics / phase retrieval / Markov-random field model / the maximizer of the posterior marginal estimate |
| Paper # | NC2005-12 |
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| Committee | NC |
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| Conference Date | 2005/6/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Neurocomputing (NC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Probablistic Inference to the Problem of Phase Retrieval in Adaptive Optics |
| Sub Title (in English) | |
| Keyword(1) | adaptive optics |
| Keyword(2) | phase retrieval |
| Keyword(3) | Markov-random field model |
| Keyword(4) | the maximizer of the posterior marginal estimate |
| 1st Author's Name | Yohei SAIKA |
| 1st Author's Affiliation | Department of Electrical and Information Engineering, Wakayama National College of Technology() |
| 2nd Author's Name | Hidetoshi NISHIMORI |
| 2nd Author's Affiliation | Department of Physics, Tokyo Institute of Technology |
| Date | 2005/6/16 |
| Paper # | NC2005-12 |
| Volume (vol) | vol.105 |
| Number (no) | 130 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |