WebThis work reveals an experimental microscopy acquisition scheme successfully combining compressed sens-ing (CS) and digital holography in off-axis and frequency-shifting … WebJan 4, 2008 · A new method is proposed to compress the information, according to the spectrum character of off-axis hologram. The sampling frequency is reduced by shifting …
Temporal super-resolution high-speed holographic video …
WebOct 3, 2024 · Off-axis digital holographic interferometry with the light source of a light emitting diode (LED) is presented and its application for quantitative phase imaging in a large range with low noise is demonstrated. The scheme is implemented in a grating based Mach–Zehnder interferometer. To achieve off-axis interferometry, firstly, the collimated ... WebCompressed sensing has been discussed separately in spatial and temporal domains. Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths … knenergy air filter cleaning o\u0027reilly
Compressive Single Shot Off-Axis Digital Holography for High …
Figure 7(a–h)show reconstructed images from compressed synthesized holograms of a grayscale image for several implementations of additional compression of A/P and R/I wavelet decomposition coefficients of the filtered hologram spectrum. The reverse biorthogonal 6.8 wavelet transform, as one of the best in … See more Threshold processing of wavelet decomposition coefficients was applied to compress separated A/P and R/I parts of the Fourier spectrum of holograms after frequency filtering. 51 wavelets were used for hologram … See more After separation of A/P or R/I parts of the spectrum, the wavelet transform is applied. Further wavelet coefficients are quantized. First, uniform quantization by level is analyzed as the most popular method and one of … See more After hologram frequency filtering, separation of spectral parts, and applying the wavelet transform, the wavelet coefficients were threshold processed and quantized in … See more WebIntroduction to off-axis digital holography. A technique for reconstructing the spatial amplitude and phase of an optical field, by measuring the resulting intensity of the … WebJun 17, 2024 · We develop a temporal super-resolution high-speed holographic video recording method based on the angular multiplexing in off-axis digital holography that can achieve an acquisition rate greater than the frame rate of image sensors. We realize a high-speed switching of reference lights with different incident angles using two acousto-optic … red bull mtb helm