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Automatic Gamma Correction Based on Root-Mean-Square-Error Maximization
2020 International Conference on Computing and Information Technology (ICCIT-1441), 2020Gamma correction is a well-known method used often for image enhancement, mainly to improve the luminance levels of dark and bright images. However, the enhancement level is highly affected by the gamma parameter used. In this paper, we propose a new iterative algorithm for automating the selection of the gamma value γ by maximizing the mean error ...
Ahmad S. Tarawneh +4 more
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Visual Acuity as a Function of Zernike Mode and Level of Root Mean Square Error
Optometry and Vision Science, 2003ABSTRACT: Background. The coefficients of normalized Zernike expansion are orthogonal and reflect the relative contribution of each mode to the total root mean square (RMS) wavefront error.
Raymond A, Applegate +4 more
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Study of Dynamometer Cards Identification Based on Root-Mean-Square Error Algorithm
International Journal of Pattern Recognition and Artificial Intelligence, 2017The surface dynamometer cards are important working condition data of sucker-rod pumping system. It has a very important practical significance for the analysis of transmission system and the diagnosis of oil production condition of sucker-rod pumping system.
Tao Ren +3 more
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On the evaluation of root-mean-square errors in atomic coordinates in protein crystallography
Acta Crystallographica Section A, 1982The calculation of standard deviations for atomic coordinates in human deoxyhaemoglobin A on the basis of various reciprocal-space residuals has shown the resulting values to be in good agreement with each other. Evidence is presented that such calculations may be more reliable than is commonly accepted. It is also shown that Wilson's statistics may be
Z. Derewenda +3 more
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Reduction of root-mean-square error in faceted space antennas
AIAA Journal, 1984This paper examines the potential for reducing root-mean-square surface errors in shallow faceted reflectors by replacing flat facets with laterally curved membrane facets. Exact solutions are obtained for the small lateral deflections of equilateral triangular and rectangular membranes subject to isotropic tension and parabolic edge deflections. These
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Measurement of Root-Mean-Square Phase Errors in Arrayed Waveguide Gratings
Chinese Physics Letters, 2004The interference-based method to measure the root-mean-square phase errors in SiO2-based arrayed waveguide gratings (AWGs) is presented. The experimental results show that the rms phase error of the tested AWG is 0.72 rad.
Zheng Xiao-Ping +4 more
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Южно-Сибирский научный вестник, 2018
В настоящее время для измерения среднего квадратического значения (СКЗ) применяются преимущественно цифровые методы. Реализация данных методов предполагает использование аналого-цифровых преобразователей (АЦП) для получения отсчетов входного сигнала в цифровом виде.
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В настоящее время для измерения среднего квадратического значения (СКЗ) применяются преимущественно цифровые методы. Реализация данных методов предполагает использование аналого-цифровых преобразователей (АЦП) для получения отсчетов входного сигнала в цифровом виде.
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The choice of the coefficient of criterion of a minimum of the resulting root-mean-square error
2016 13th International Scientific-Technical Conference on Actual Problems of Electronics Instrument Engineering (APEIE), 2016The various approaches to a choice of weight coefficient of criterion of a minimum of the resulting root-mean-square error of linear automatic control systems are considered. This criterion allows defining compromise meanings of small parameters of system, minimizing an resulting error of the system, which is summed dispersion of measurement noise and ...
E.L. Veretelnikova, I.L. Elantseva
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A note on minimum mean squared error estimation of signals with unit roots
Journal of Economic Dynamics and Control, 1988Using an ARIMA parametrization, this note provides a very simple proof of how the Wiener-Kolmogorov-Whittle filter to estimate signals in time series can be extended to the nonstationary case. The proof is valid for any number and type of unit roots (not simply those implied by differencing) in both the signal and the overall model.
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