然后分析了目前图像质量评价的现状,基于传播波方程的图像恢复方法提出了一种客观的质量评价准则;
It also analyzes status of image quality assessment and introduces an image quality objective assessment rule based on traveling wave equation.
对于匀速直线运动引起的图像模糊,已经提出了一种基于传播波方程的恢复方法及其恢复质量的客观评价准则。
Recently, based on the traveling wave equation, an image restoration method and its objective assessment to the quality of restored images are proposed by the present authors and others.
本文首先介绍了五种常用的运动模糊恢复方法,重点介绍了利用传播波方程对匀速直线运动引起的图像模糊进行恢复的方法。
This thesis first introduces five widely-used restoration methods of motion-blurred images, especially the restoration method based on traveling wave equation.
为了研究孤立波在带有陡升台地的陆架上的传播,用MAC方法求解了二维纳维尔-斯托克斯方程。
The two-dimensional Navier-Stokes equations are solved by the MAC method to study a solitary wave propagation on a shelf with a terrance risen up suddenly.
通过求解介质运动做分方程,获得了波的传播问题数值解。
The numerical solution of wave propagation may be obtained by solving for the differential equation of medium motion.
本文用线性化全球原始方程谱模式来研究地形强迫行星波的垂直传播过程及演变特征。
The vertical propagating process and evolutive characteristics of planetary waves forced by topography are investigated by a global linearized primitive equation model.
考虑了弹塑性应力波传播对屈曲的影响,建立了该问题横向扰动方程。
The equation of lateral disturbance used to analyize the problem is developed by taking into account the effect of elastic-plastic stress wave.
本文从电压和电流的基本方程出发,分析脉冲波在多导线传输系统的传播现象和多导线传输系统导线间的相互耦合作用。
In this paper the propagation of pulse wave on and the mutual coupling between conductors of a multi-conductor transmission system are analysed from the basic voltage and current equations.
该算法使用射线追踪计算传播时间,应用波场界面方程计算反射振幅。
This algorithm USES ray tracing to calculate traveltime, and DE - rives reflection amplitude from wave field interface equation.
基于电磁波在海水中的传播方程,分析了海水中磁偶极子辐射场的分布特性。
The distribution characteristic of the magnetic dipole field is analyzed based on the propagation equations of underwater electromagnet ic wave.
导出了对称和斜对称模式下波传播的特征方程。
The secular equations for symmetric and skew symmetric wave mode propagation were derived.
本文从非均匀介质中波动方程出发,提出了基于一般标架的相空间(局部角度域)波传播的步进算法。
A phase-space(local angle domain) marching algorithm of wave propagation is proposed in the general frame case, based on the wave equation for inhomogeneous media.
在研究随机媒质中传播的波的一些有关问题时,常常需要求解波的矩方程。
In the study of the problems related to the wave propagation in random media, the solutions of the moment equations are often needed.
本文从小波理论出发,结合地震波在黏弹性介质中的传播方程,推导出小波尺度域地震波能量衰减公式。
This paper derives an energy attenuation formula of seismic waves in the wavelet-scale domain from the wavelet theory and seismic wave propagation equation in anelastic medium.
利用波传播理论,建立损伤介质的一维波动方程及反问题分析理论。
Using the theory of wave propagation, one-dimensional wave equation and inverse problem of damaged medium was established and analyzed.
运用一个具有二阶精度和波传播性质的激波捕捉法,数值求解激波折射运动的流体力学方程组。
A shock-capturing method in finite volume scheme with two order of precision and wave propagation is employed to discretize and solve hydrodynamics equations of shock waves.
研究了波在非均匀损伤介质中的传播及波动方程的反演。
The theory of waves propagation in inhomogeneous damaged zone and inversion of wave motion equations are studied.
把表面张力的能量当作高阶小量、导出了非传播孤立波的基本方程,得到的解与实验结果相符。
The contradictory between experiments and theory about the effect of the surface tension on the non-propagating soliton was discussed in this article.
研究了埋地管道泄漏信号波的传播方程,泄漏信号频率特性以及衰减方程。
The buried pipe transfer equation, the frequency character and the attenuation equation of the leak signal are studied.
抛物线方程(PE)是波动方程的一种近似形式,它假设电磁波能量在沿着抛物线轴向的锥形区域内传播。
The Parabolic Equation method (PE) is an approximation of the wave equation, which models energy propagating in a cone centred on a preferred direction, the paraxial direction.
从声波方程出发,阐述了声表面波的基本性质和传播特性。
According to acoustic wave equation, the property and propagation of SAW is expounded.
抛物方程方法已经被广泛地应用于电磁波传播模型,并成为解决电磁波传播问题主要的工具。
The parabolic equation method has been used widely in the electromagnetic wave propagation model and becomes the main tool to resolve the problem of electromagnetic wave propagation.
通过对弹性波在蜂窝结构中传播的研究,建立了弹性力学基本方程,得出了截止频率;
The fundamental equations of elastic mechanics were established through research of the spreading of elastic wave in honeycomb structure. The cut-off frequency was solved from the equations.
本文首次探讨了对弹性波在传播过程中的反射和波型转换有任制作用的弹性波方程的形式。
Several approximate elastic wave equations in which reflection and conversionare weaker than in accurate ones are first discussed in the paper.
推导了以顺波、逆波为状态向量的应力波传播方程和杆形部件的作用力、速度传播的特征矩阵;
Stress wave propagation equations that incident wave and reflection wave are condition vectors are derived from three discrete forms as well as the characteristic matrix of the force and the velocity.
提出自结合方法,导出波传播的限定条件,在找到相应的正交序列后,完全得到弹性波导系统中解析形式的频散方程、群速度方程和稳态响应。
After finding the orthogonal sets corresponding to the guided-wave restriction condition, the analytic dispersive equation, group velocity equation and steady response are obtained simultaneously.
为描述连续交通流中的停车波现象,分析了停车波传播的运动学特性,基于运动学方程建立了停车波模型。
To describe the phenomena of stopwave in the continuous traffic flow, a stopwave model was built based on kinematic equation by analyzing kinematic characteristics of stopwave spread.
实验结果表明:波垂直水面传播时,速度与时间平均方程的结果基本一致;
The results show that velocity agrees on the whole Wyllie equation as wave propagates perpendicularly to water surface;
本文由波传播问题的变分原理导出了垂向不均匀介质中的弹性波波动方程及纵波和横波波动方程。
According to the variational principle for wave propagation, the elastic wave equation and the compressional and shear wave equations in a vertically inhomogeneous medium are developed.
本文由波传播问题的变分原理导出了垂向不均匀介质中的弹性波波动方程及纵波和横波波动方程。
According to the variational principle for wave propagation, the elastic wave equation and the compressional and shear wave equations in a vertically inhomogeneous medium are developed.
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