Aperture scanning fourier ptychographic imaging
AssigneeCalifornia Institute of Technology
InventorsRoarke Horstmeyer, Guoan Zheng, Xiaoze Ou, Changhuei Yang
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Abstract
Certain aspects pertain to aperture-scanning Fourier ptychographic imaging devices comprising an aperture scanner that can generate an aperture at different locations at an intermediate plane of an optical arrangement, and a detector that can acquire lower resolution intensity images for different aperture locations, and wherein a higher resolution complex image may be constructed by iteratively updating regions in Fourier space with the acquired lower resolution images.
Claims26
An aperture-scanning Fourier ptychographic imaging device, comprising:
- a first optical element configured to receive light from a sample;
- a second optical element;
- an aperture scanner configured to generate an aperture at a plurality of aperture locations in an intermediate plane, the aperture configured to pass incident light at the aperture from the first optical element to the second optical element;
- a light detector configured to receive light from the second optical element and to acquire a plurality of intensity images associated with different aperture locations;
- and
- a processor configured to construct a complex image of the sample by iteratively updating regions in Fourier space with the acquired intensity images.
An aperture-scanning Fourier ptychographic imaging method, comprising:
- illuminating a sample;
- receiving incident light at a first optical element from the sample;
- generating an aperture at a plurality of locations at an intermediate plane;
- passing incident light at the aperture from the first optical element to a second optical element;
- acquiring a plurality of intensity images using a detector receiving light from the second optical element;
- and
- constructing a complex image of the sample by iteratively updating regions in Fourier space with the plurality of intensity images.
Dependencies are inferred from the claim text.