2020-09-152020-09-152020-06-23Cossairt, Oliver Strider, Holloway, Jason, Veeraraghavan, Ashok, Sharma, Manoj Kumar and Wu, Yicheng, "Synthetic apertures for long-range, sub-diffraction limited visible imaging using fourier ptychography." Patent US10694123B2. issued 2020-06-23. Retrieved from <a href="https://hdl.handle.net/1911/109350">https://hdl.handle.net/1911/109350</a>.https://hdl.handle.net/1911/109350A 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.27engUtility patentUS10694123B2