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Phase-shift extraction from twice-normalized light intensity changes recorded with random phase shifts
http://hdl.handle.net/2297/40595
http://hdl.handle.net/2297/405955e11acf0-4140-42c1-86b8-067a06b50f4a
名前 / ファイル | ライセンス | アクション |
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TE-PR-ADACHI-M-552.pdf (1.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-10-03 | |||||
タイトル | ||||||
タイトル | Phase-shift extraction from twice-normalized light intensity changes recorded with random phase shifts | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Adachi, Masaaki
× Adachi, Masaaki× Sunada, Satoshi |
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書誌情報 |
Optical Review 巻 21, 号 5, p. 522-525, 発行日 2014-10-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1340-6000 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11029291 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1007/s10043-014-0082-1 | |||||
出版者 | ||||||
出版者 | 日本光学会 (応用物理学会分科会) = Optical Society of Japan / Springer | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A simple phase-shift extraction algorithm is proposed for interferograms recorded with random phase shifts that vary over at least 2π. The phase-shift-dependent changes in the intensity at two pixels having different phases, selected from one frame, are taken out and normalized. The sum and difference of the two normalized changes are calculated, and both the changes are normalized again along the phase shifts. The normalized sum and difference become the cosine and sine of a term including the random phase shift, respectively. Thereby, the phase shifts are extracted from both twice-normalized intensity changes. An experiment using an interference microscope equipped with a piezoelectric-transducer positioner of an objective lens is conducted to estimate the validity of the algorithm. The algorithm is verified to have satisfactory results when the multiple interferograms used have a sample size of more than 15 frames recorded with random phase shifts. | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |