Point spread function-inspired deformable convolutional network for holographic displaysdoi:10.1117/12.3023146Reconstruction algorithmsHologramsConvolution3D modelingDeformationPoint spread functionsRGB color model3D image reconstructionPerformance modelingSpatial light modulatorsConvolutional neural networks (CNNs) have ...
As for any optical system, the observed image Io of a ground based astronomical telescope can be described as a convolution of the geometrical image I with the so-called Point Spread Function (PSF), i.e., (1)Io=I∗PSF. A possible use of the PSF is as a quality measure for the ...
The first step to set up theImage Simulationis to provide it with an input image file. SinceImage Simulationessentially performs a convolution of the microscope PSF with this input image, I want to have a Kronecker delta in my input image to model my closely-separated...
The speckle size is produced from the convolution of the PSF corresponding to the aperture and the Fourier spectrum of the diffuser. Hence, the speckle pattern is produced from this convolution. Consequently, we get the average speckle size from the FWHM of the PSF obtained for the aperture. I...
Adaptive optics Optical transfer function Point spread function 1. Introduction As for any optical system, the observed image Io of a ground based astronomical telescope can be described as a convolution of the geometrical image I with the so-called Point Spread Function (PSF), i.e., (1)Io=...
Point-spread function of the probe forming optics ($PSF_{optics} $) is reported for the first time in an uncorrected (without multipole correctors) scanning electron microscope (SEM). In an SEM, the electron probe information is lost as the beam interacts with the specimen. We show how the...
Observed sam- ples (pixels/voxels) in medical images are not direct Dirac impulse measurements of a biological scene, but are typically samples from the convolution of the unob- servable biological scene with an observation kernel, i.e. they have an associated point spread function (PSF). ...
关键词: image blur subpixel convolution kernel estimation aliasing inverse problems camera quality assessment point spread function modulated transfer function DOI: doi:10.1137/110848335 被引量: 7 年份: 2012 收藏 引用 批量引用 报错 分享 全部来源 免费下载 求助全文 Semantic Scholar Semantic Scholar (...
The complex amplitude at the image sensor is given as 2D convolution between Eq. (2) and quadratic phase function \(Q\left( {{1 \mathord{\left/ {\vphantom {1 {z_{h} }}} \right. \kern-\nulldelimiterspace} {z_{h} }}} \right)\) for distance zh. Therefore, the intensity ...
The diffracted Fresnel field is described as the convolution of the object field and point spread function known as optical kernel. The point spread function hx,y has a quadratic phase term showing a rapid oscillation with lateral space [15]: hx,y=eikziλzexpiπλzx2+y2,where k is ...