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- W4384299503 abstract "<p>A four-dimensional (4D) super-resolution imaging method (called PSF modulation method) was developed via modulation of an arbitrary point-spread-function (PSF) of an imaging system. The highest image resolution achievable will only be limited by the noises in the images. Theory, computer simulations, and experiments were presented. </p> <p>A pulse-echo image of a super-resolution (0.65 mm versus a two-way diffraction-limited resolution of 2.65 mm) and 31-dB signal-to-noise ratio (SNR) was obtained with an ultrasound experiment using a 0.5-mm diameter modulator and 1.483-mm wavelength. Another ultrasound experiment shows that a wave source was imaged at a super-resolution (0.5 mm versus a one-way diffraction limited resolution of 3.63 mm) at about 30-dB SNR, using the same modulator size and wavelength. </p> <p>In addition, a PSF-weighted super-resolution imaging method based on the PSF modulation method was developed. This method is easier to implement but may have some limitations. With a proper choice of a modulator and imaging system, nanoscale imaging is possible using the methods developed. </p>" @default.
- W4384299503 created "2023-07-15" @default.
- W4384299503 creator A5012426299 @default.
- W4384299503 date "2023-10-16" @default.
- W4384299503 modified "2023-10-18" @default.
- W4384299503 title "Modulation of Point Spread Function for Super-Resolution Imaging" @default.
- W4384299503 doi "https://doi.org/10.36227/techrxiv.23651574" @default.
- W4384299503 hasPublicationYear "2023" @default.
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