发明名称 |
Recording multiple spatially-heterodyned direct to digital holograms in one digital image |
摘要 |
Systems and methods are described for recording multiple spatially-heterodyned direct to digital holograms in one digital image. A method includes digitally recording, at a first reference beam-object beam angle, a first spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded first spatially-heterodyned hologram by shifting a first original origin of the recorded first spatially-heterodyned hologram to sit on top of a first spatial-heterodyne carrier frequency defined by the first reference beam-object beam angle; digitally recording, at a second reference beam-object beam angle, a second spatially-heterodyned hologram including spatial heterodyne fringes for Fourier analysis; Fourier analyzing the recorded second spatially-heterodyned hologram by shifting a second original origin of the recorded second spatially-heterodyned hologram to sit on top of a second spatial-heterodyne carrier frequency defined by the second reference beam-object beam angle; applying a first digital filter to cut off signals around the first original origin and define a first result; performing a first inverse Fourier transform on the first result; applying a second digital filter to cut off signals around the second original origin and define a second result; and performing a second inverse Fourier transform on the second result, wherein the first reference beam-object beam angle is not equal to the second reference beam-object beam angle and a single digital image includes both the first spatially-heterodyned hologram and the second spatially-heterodyned hologram.
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申请公布号 |
US2004213464(A1) |
申请公布日期 |
2004.10.28 |
申请号 |
US20030607824 |
申请日期 |
2003.06.27 |
申请人 |
HANSON GREGORY R.;BINGHAM PHILIP R. |
发明人 |
HANSON GREGORY R.;BINGHAM PHILIP R. |
分类号 |
G03H1/04;G03H1/08;G03H1/28;(IPC1-7):G06K9/74 |
主分类号 |
G03H1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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