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Sharp coefficient and distortion estimates for p-Bloch functions
Sharp coefficient and distortion estimates for p-Bloch functionsopenaire
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Estimation of correlation coefficient with general distortion measurement errors
Communications in Statistics - Simulation and Computation, 2021This article studies the estimation of correlation coefficient between unobserved variables of interest.
Jun Zhang 0027, Bingqing Lin
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Absolute logarithmic calibration for correlation coefficient with multiplicative distortion
Communications in Statistics - Simulation and Computation, 2020This paper studies the estimation of correlation coefficient between unobserved variables of interest.
Jun Zhang 0027, Zhuoer Xu, Zhenghong Wei
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Automatic estimation of distortion coefficient for correcting radial distortion
2018 International Conference on Electronics, Information, and Communication (ICEIC), 2018This study proposes the facial landmark points based distortion coefficients estimation to overcome the radial distortion. Existing methods estimate the distortion rate using the predefined information, such as design model of lens, pattern information, and prior learning.
Woon Cho +3 more
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Exponential calibration for correlation coefficient with additive distortion measurement errors
Statistical Analysis and Data Mining: The ASA Data Science Journal, 2021AbstractThis paper studies the estimation of correlation coefficient between unobserved variables of interest. These unobservable variables are distorted in an additive fashion by an observed confounding variable. We propose a new identifiability condition by using the exponential calibration to obtain calibrated variables and propose a direct‐plug‐in ...
Jun Zhang 0027, Zhuoer Xu
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Encoding DCT Coefficients Based on Rate–Distortion Measurement
Journal of Visual Communication and Image Representation, 2001We propose a rate?distortion optimization algorithm that selects the quantization parameter and adjusts the level of the quantized DCT coefficients based on a rate?distortion measurement to achieve better video quality under a bit-rate constraint. The bit streams generated by the algorithm conform to the standards.
I-Ming Pao, Ming-Ting Sun, Shawmin Lei
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Aggressive Quantization on Perturbation Coefficients for Nonlinear Pre-Distortion
Optical Fiber Communication Conference, 2014We experimentally demonstrate a 2.4 dB improvement in 200G DP-16QAM maximum system margin over 800 km of TrueWave Classic fiber using only 3 distinct perturbation coefficients in nonlinear pre-distortion with 50% chromatic dispersion pre-compensation.
Qunbi Zhuge +4 more
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Impact of Contrast-Distorted Image on Curvelet Coefficients
2018 1st Annual International Conference on Information and Sciences (AiCIS), 2018Image quality (IQ) can be degraded due to various types of distortion such as noise, blurring, fast fading (FF), blocking artifacts and contrast distortion. These distortions may occur during operations such as acquisition, compression, storage, transmission, display and post-processing. Contrast distortion is one of the most common types of distortion.
Ismail Taha Ahmed Ahmed +2 more
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Centrifugal-Distortion Coefficients of the Nonlinear XYX Molecule
The Journal of Chemical Physics, 1965All coefficients of centrifugal distortion that are expected to contribute to the molecular vibration—rotation energies to fourth or lower orders of approximation are calculated for the nonlinear XYX molecule as functions of the fundamental molecular constants.
K. T. Chung, Paul M. Parker
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