... The algorithm has been successfully applied to both real and simulated astronomical data (Jefferies , 1993; Jefferies 1993) and its ability to accurately preserve photometry in the observed image has been demonstrated. ... In order to investigate the algorithm's performance without the influence of detector and photon noise we took the ``truth'' data set and convolved it with the given PSF to generate a noiseless image. ... The restored object and the two restored PSF's are shown in Fig. ...

... Positive iterative deconvolution is an algorithm that applies non-linear constraints, conserves energy, and delivers stable results at high noise-levels. This is also true for Richardson-Lucy like algorithms which follow a statistical approach to the deconvolution problem. ... All algorithms resolve the objects, as shown by the reconstructions by Richardson-Lucy in Figure 2 on the right, the algorithm by M?ller in Figure 3 on the left and positive iterative deconvolution in Figure 3 on the right. ...

... Archives . ... Discontinuation of weekly [arXiv] series . ... For a discipline that relies so heavily on images, it is rather surprising how little use astronomy makes of the vast body of work on image analysis carried out by mathematicians and computer scientists. ... images. ... Images may be Opened and Closed with different structure elements. ... Tags: close , dilate , EotW , Equation , Equation of the Week , erode , Morphological operator , open , set theory . Category: Imaging , Jargon | ...

. Приложение к лекции для студентов . Верходанов О.В. Рис.12. Пример работы алгоритма чистки. На верхнем рисунке приводится модельное изображение, на среднем - грязная карта, на нижнем - изображение, восстановленное с помощью CLEAN. Рисунок воспроизведен из работы Стиэра и др. (1984). vo @ sao.ru ( Oleg Verkhodanov ) .

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Australia Telescope Online Archive (ATOA) . ... Parkes | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Our Monte Carlo code is based on the standard algorithm given in Pozdnyakov, Sobol' & Sunyaev (1983). ...

. Next: Convergence Up: Regularization from significant Previous: Regularization of the . љ Now, define . Then , and hence . Lucy's equation is: . and the regularization leads [ 39 ] to: . Rein Warmels . Mon Jan 22 15:08:15 MET 1996

. XMM-Newton Science Analysis System . rgslinepos (rgslinepos-1.3.1) [xmmsas_20070708_1801-7.1.0] . Meta Index / Home Page . set instrument state variable for CAL calculate angle of incidence on gratings alpha calculate dispersion angle beta from dispersion equation convert coordinates . XMM-Newton SOC/SSC -- 2007-07-09

... Phase Correction Algorithms | ... R. Bolton, B. Nikolic, J. Richer, The Power Spectrum of Atmospheric Path Fluctuations at the ALMA Site from Water Vapour Radiometer Observations , ALMA Memo 592, PDF , ALMA Memo series entry . Emily I. Curtis, Bojan Nikolic, John S. Richer and Juan R. Pardo, Atmospheric dispersion and the implications for phase calibration , ALMA Memo 590. ... B. Nikolic, ALMA Phase Calibration/Correction , Presented at Algorithms 2008 Workshop, Oxford, December 2008. pdf . ...

... 8, `` Celestial Mechanics'', 2002 Two trends in the development of numerical algorithms of celestial mechanics T. V. Bordovitsyna, V. A. Avdushev, A. M. Chernitsov Research Institute of Applied Mathematics and Mechanics, Tomsk, Russia The motion of a material particle with the mass m in the gravitational field of the central body with the mass M under the action of conservative forces F i with the potential function V i and non--conservative forces P in a ...

... Moscow, Russia E-mail: krivosheev@iki.rssi.ru Notes: · · The Monte Carlo method (s) is also called the statistical test method An innumerable number of processes can be listed the outcome of which is not determined and has probabilistic nature, but these processes obey statistical laws, so to obtain the result we have to make multiple similar tests, i.e. to use the MC method Because probabilistic processes are widely spread in nature, the MC ...

... COMPUTER SIMULATION OF RADIOWAVE MULTIPLE SCATTERING EFFECTS IN IONOSPHERE USING MONTE-CARLO METHOD . ... Distribution of reflected radiation on the ground is computed. ... Such influence can be remarkable if the scattering is multiple, i.e. the optical thickness for the scattering process is considerably greater than a unit. ... Radiation energy transfer in the slab is modeled by distribution of some particles carring small portions of radiation energy. ... The isotropic plasma approximation is...