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检索条件"主题词=Point spread functions"
630 条 记 录,以下是1-10 订阅
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Computational Comparison and Validation of point spread functions for Optical Microscopes
IEEE TRANSACTIONS ON COMPUTATIONAL IMAGING
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IEEE TRANSACTIONS ON COMPUTATIONAL IMAGING 2025年 11卷 170-178页
作者: Liu, Zicheng Qin, Yingying Tinguely, Jean-Claude Agarwal, Krishna Northwestern Polytech Univ Sch Elect & Informat Dept Elect Engn Xian 710029 Peoples R China UiT Arctic Univ Norway Dept Phys & Technol N-9037 Tromso Norway
point spread function (PSF) is quite important in modern computational microscopy techniques. Various approaches for measuring and modeling point spread functions have been proposed for both fluorescence and label-fre... 详细信息
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point spread functions with extended depth of focus
Point spread functions with extended depth of focus
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Conference on 3-Dimensional and Multidimensional Microscopy: Image Acquisition and Processing IX
作者: Wilson, T Neil, MAA Massoumian, F Univ Oxford Dept Engn Sci Oxford OX1 3PJ England
The use of an annular pupil plane filter may be used to increase the depth of focus of an objective lens without significant deterioration of the lateral resolution. However this approach is very inefficient since mos... 详细信息
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Correcting Optical Aberration via Depth-Aware point spread functions
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IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE 2024年 第8期46卷 5541-5555页
作者: Luo, Jun Nie, Yunfeng Ren, Wenqi Cao, Xiaochun Yang, Ming-Hsuan Chinese Acad Sci Inst Informat Engn Beijing 100093 Peoples R China Univ Chinese Acad Sci Sch Cyber Secur Beijing 100049 Peoples R China Yunnan Normal Univ Key Lab Educ Informatizat Nationalities Minist Educ Kunming 650500 Yunnan Peoples R China Vrije Univ Brussel Dept Appl Phys & Photon B-1050 Brussels Belgium Flanders Make B-1050 Brussels Belgium Sun Yat Sen Univ Sch Cyber Sci & Technol Shenzhen Campus Shenzhen 518107 Peoples R China Yunnan Key Lab Smart Educ Shenzhen 518107 Peoples R China Univ Calif Merced Merced CA 95343 USA
Optical aberration is a ubiquitous degeneration in realistic lens-based imaging systems. Optical aberrations are caused by the differences in the optical path length when light travels through different regions of the... 详细信息
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Scalability conjecture for the Fried parameter in synthesis of turbulent atmosphere point spread functions
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JOURNAL OF APPLIED REMOTE SENSING 2018年 第4期12卷
作者: Hunt, Bobby R. Iler, Amber L. Rucci, Michael A. Integr Applicat Inc Pacific Def Solut Kihei HI 96753 USA Integr Applicat Inc Ann Arbor MI 48108 USA US Air Force Res Lab Wright Patterson AFB OH 45433 USA
A common method for synthesizing turbulent imagery is to model phase perturbations on a wavefront and then propagate the wavefront to the entrance pupil of an imaging system. The point spread function (PSF) that resul... 详细信息
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A Quantitative Study of the Quality of Deconvolved Wide-field Microscopy Images as Function of Empirical Three-dimensional point spread functions
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JOURNAL OF THE OPTICAL SOCIETY OF KOREA 2011年 第3期15卷 252-263页
作者: Adur, Javier Vicente, Nathalie Diaz-Zamboni, Javier Fernanda Izaguirre, Maria Hugo Casco, Victor Natl Univ Entre Rios Microscopy Lab Appl Mol & Cellular Studies Sch Engn RA-3100 Parana Argentina
In this work, for the first time, the quality of restoration in wide-field microscopy images after deconvolution was analyzed as a function of different point spread functions using one deconvolution method, on a spec... 详细信息
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CALCULATION AND APPLICATION OF point spread functions FOR TREATMENT PLANNING WITH HIGH-ENERGY PHOTON BEAMS
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ACTA ONCOLOGICA 1987年 第1期26卷 49-56页
作者: AHNESJO, A ANDREO, P BRAHME, A UPPSALA DATACENT DIV MED COMP PHYS S-75002 UPPSALA SWEDEN UNIV SARAGOSSA HOSP CLIN SECC FIS DEPT RADIOL SARAGOSSA SPAIN KAROLINSKA INST DEPT RADIAT PHYS S-10401 STOCKHOLM 60 SWEDEN UNIV STOCKHOLM S-10405 STOCKHOLM SWEDEN
A general dose calculation method for treatment planning with high energy photon beams, based on folding of the total energy released by primary photons per unit mass, the terma, with a fractional mean energy imparted... 详细信息
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Fast 3D blind deconvolution of even point spread functions
Fast 3D blind deconvolution of even point spread functions
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Conference on 3-Dimensional and Multidimensional Microscopy - Image Acquisition and Processing XI
作者: Yagle, AE Shah, S Univ Michigan Dept EECS Ann Arbor MI 48109 USA
3-D mages obtained from optical sectioning microscopy are usually degraded by a point-spread function that is known to be an even function but is otherwise only approximately known, or even entirely unknown. We presen... 详细信息
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Blind deconvolution of images with band-limited point spread functions
Blind deconvolution of images with band-limited point spread...
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19th Congress of the International-Commission-for-Optics
作者: Miura, N Kikuchi, K Kitami Inst Technol Dept Comp Sci Kitami Hokkaido 0908507 Japan
A blind deconvolution method is proposed for restoring a diffraction-limited object from a convolution image with a band-limited PSF. The method is based on conjugate-gradient minimization of an error metric defined i... 详细信息
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EVALUATION OF point spread functions OF MICROSCOPE OBJECTIVES USING MOMENTS BY MODIFIED DEFINITIONS
EVALUATION OF POINT SPREAD FUNCTIONS OF MICROSCOPE OBJECTIVE...
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CONF ON SPECIFICATION AND MEASUREMENT OF OPTICAL SYSTEMS
作者: CASTANEDA, R KROSS, J Univ. Nacional de Colombia Seccional de Medellin (Germany) Technical Univ. of Berlin (Germany)
The analysis of point spread functions is important for the quality evaluation of imaging systems. point spread functions are evaluated here through their moments. But two problems impede the use of this method succes... 详细信息
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Out-of-focus point spread functions
Out-of-focus point spread functions
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Conference on Digital Photography X
作者: Dietz, Henry Gordon Univ Kentucky Dept Elect & Comp Engn Lexington KY 40506 USA
There are many ways in which the performance of a lens can be characterized, most of which measure properties of the in-focus image. The current work instead centers on measuring properties of an out-of-focus (OOF) im... 详细信息
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