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Synthetic Apertures for Long-Range, Sub-Diffraction Limited Visible Imaging Using Fourier Ptychography
Synthetic Apertures for Long-Range, Sub-Diffraction Limited Visible Imaging Using Fourier Ptychography
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机译:合成孔径用于使用傅立叶相谱分析技术进行远距离,亚衍射受限的可见光成像
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摘要
A method for imaging objects includes illuminating an object with a light source of an imaging device, and receiving an illumination field reflected by the object. An aperture field that intercepts a pupil of the imaging device is an optical propagation of the illumination field at an aperture plane. The method includes receiving a portion of the aperture field onto a camera sensor, and receiving a sensor field of optical intensity. The method also includes iteratively centering the camera focus along the Fourier plane at different locations to produce a series of sensor fields and stitching together the sensor fields in the Fourier domain to generate an image. The method also includes determining a plurality of phase information for each sensor field in the series of sensor fields, applying the plurality of phase information to the image, receiving a plurality of illumination fields reflected by the object, and denoising the intensity of plurality of illumination fields using Fourier ptychography.
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