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Structured illumination microscopy (SIM) can achieve a $2\times$ resolution enhancement beyond the classical diffraction limit by employing illumination translations with respect to the object. This method has also been successfully…

Restoration of digital images from their degraded measurements has always been a problem of great theoretical and practical importance in numerous applications of imaging sciences. A specific solution to the problem of image restoration is…

计算机视觉与模式识别 · 计算机科学 2010-04-09 Elad Shaked , Oleg Michailovich

The Richardson-Lucy unfolding approach is simple and excellently performing. It efficiently suppresses artificial high frequency contributions and permits to introduce known features of the true distribution. An algorithm to fix the number…

数据分析、统计与概率 · 物理学 2015-06-11 Guenter Zech

A method for spatial deconvolution of spectra is presented. It follows the same fundamental principles as the ``MCS image deconvolution algorithm'' (Magain, Courbin, Sohy, 1998) and uses information contained in the spectrum of a reference…

天体物理学 · 物理学 2009-10-31 F. Courbin , P. Magain , M. Kirkove , S. Sohy

We present an application of the Richardson-Lucy algorithm to the analysis of color-magnitude diagrams by converting the CMD into an image and using a restoring point spread function function ({\it psf}) derived from the known, often…

天体物理学 · 物理学 2009-11-11 M. Cignoni , Steven N. Shore

Super-resolution microscopes (such as STED) illuminate samples with a tiny spot, and achieve very high resolution. But structures smaller than the spot cannot be resolved in this way. Therefore, we propose a technique to solve this problem.…

图像与视频处理 · 电气工程与系统科学 2019-11-20 Yaohua Xie

The most ubiquitous form of computational aberration correction for microscopy is deconvolution. However, deconvolution relies on the assumption that the point spread function is the same across the entire field-of-view. This assumption is…

We address a current caveat in the deconvolution of the Primordial Power Spectrum (PPS), from observed Cosmic Microwave Background (CMB) temperature anisotropy, in the presence of weak lensing of the CMB by the large scale structure (LSS)…

宇宙学与河外天体物理 · 物理学 2022-11-28 Rajorshi Sushovan Chandra , Tarun Souradeep

To push the radial velocity (RV) exoplanet detection threshold, it is crucial to find more reliable radial velocity extraction methods. The Least-Squares Deconvolution (LSD) technique has been used to infer the stellar magnetic flux from…

地球与行星天体物理 · 物理学 2022-04-29 F. Lienhard , A. Mortier , L. Buchhave , A. Collier Cameron , M. Lopez-Morales , A. Sozzetti , C. A. Watson , R. Cosentino

We present the deconvolution between two smooth function vectors as a Cauchy sequence of weight functions. From this we develop a Taylor series expansion of the convolution problem that leads to a non-local approximation for the…

经典分析与常微分方程 · 数学 2015-12-01 Jack Dyson , Gianni Albertini

The quality of microscopy images often suffers from optical aberrations. These aberrations and their associated point spread functions have to be quantitatively estimated to restore aberrated images. The recent state-of-the-art method…

图像与视频处理 · 电气工程与系统科学 2022-11-22 Kira Vinogradova , Eugene W. Myers

While burst Low-Resolution (LR) images are useful for improving their Super Resolution (SR) image compared to a single LR image, prior burst SR methods are trained in a deterministic manner, which produces a blurry SR image. Since such…

计算机视觉与模式识别 · 计算机科学 2025-07-21 Kento Kawai , Takeru Oba , Kyotaro Tokoro , Kazutoshi Akita , Norimichi Ukita

Recently, deep convolutional neural networks (CNNs) have been demonstrated remarkable progress on single image super-resolution. However, as the depth and width of the networks increase, CNN-based super-resolution methods have been faced…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Zheng Hui , Xiumei Wang , Xinbo Gao

The interest of compressive sampling in ultrasound imaging has been recently extensively evaluated by several research teams. Following the different application setups, it has been shown that the RF data may be reconstructed from a small…

计算机视觉与模式识别 · 计算机科学 2015-12-07 Zhouye Chen , Adrian Basarab , Denis Kouamé

Quantum-gas microscopes are used to study ultracold atoms in optical lattices at the single particle level. In these system atoms are localised on lattice sites with separations close to or below the diffraction limit. To determine the…

量子气体 · 物理学 2023-11-09 A. La Rooij , C. Ulm , E. Haller , S. Kuhr

Intrinsic and experimental mechanisms frequently lead to broadening of spectral features in excited-state spectroscopies. For example, intrinsic broadening occurs in x-ray absorption spectroscopy (XAS) measurements of heavy elements where…

材料科学 · 物理学 2009-11-13 T. T. Fister , G. T. Seidler , J. J. Rehr , J. J. Kas , W. T. Elam , J. O. Cross , K. P. Nagle

Spatial resolution is one of the most important specifications of an imaging system. Recent results in quantum parameter estimation theory reveal that an arbitrarily small distance between two incoherent point sources can always be…

We present a blind multiframe image-deconvolution method based on robust statistics. The usual shortcomings of iterative optimization of the likelihood function are alleviated by minimizing the M-scale of the residuals, which achieves more…

天体物理仪器与方法 · 物理学 2017-11-09 Matthias Lee , Tamas Budavari , Richard White , Charles Gulian

A method for the recovery of the real space line-of-sight mass density field from Lyman absorption in QSO spectra is presented. The method makes use of a Lucy-type algorithm for the recovery of the HI density. The matter density is inferred…

天体物理学 · 物理学 2009-10-30 Adi Nusser , Martin Haehnelt

Least squares deconvolution (LSD) is a powerful method of extracting high-precision average line profiles from the stellar intensity and polarization spectra. Despite its common usage, the LSD method is poorly documented and has never been…

太阳与恒星天体物理 · 物理学 2015-05-19 O. Kochukhov , V. Makaganiuk , N. Piskunov