spread function

When point spread function ( PSF) is not known or only partially determined, restoration of the degraded images is called blind image restoration ( BIR).

当点扩展函数未知或不确知的情况下，从观察到的退化图像中恢复原始图像的过程称为图像盲复原。

Primary and junior high school conduct and actions foundation education, since undertake the knowledge to make widely available to spread culture, and again is a tall character talented person cradle that educate, decision future the function more highlight.

中小学作为基础教育，既承担着知识普及与文化传承，又是高素质人才培养的摇篮，对未来的决定作用更加凸显。

This paper describes the definition and function of free spread of auto engine main bearings;

本文叙述了汽车发动机曲轴轴瓦的扩张量含义和作用。

The most complete measures of image quality for an optical system were its point spread function ( PSF) and its optical transfer function ( OTF).

全面测量光学系统像质的是它的点扩散函数（PSF）或光学传递函数（OTF）。

The Estimation of the Point Spread Function in the microscopic image restoration

显微图像复原中的点扩散函数估计

It is got from the stretching fracture that the main function of the austenite dendrite crystal during the course of fracture is to stop the spread of the crack, increase the energy needed for fracture, and improve the cast-iron bars' strength. 5.

从拉伸断口可以得出：奥氏体枝晶在铸铁型材的断裂过程中主要表现为阻止裂纹扩展的作用，增加断裂所需的能量，提高铸铁型材的强度。

Based on the study of formation mechanism and simulation method, two simulation methods of the aero-optical effects image degradation are proposed: the degradation simulation in a point spread function space, variable degradation simulation in point spread function space.

在对形成机理和仿真方法研究的基础上，提出了气动光学效应图像退化的两种仿真方法：点扩展函数空间不变的退化仿真，点扩展函数空间可变的退化仿真。

When the Point Spread Function ( PSF) associated with motion blur is unknown, estimating parameters of the PSF is necessary for image restoration.

在运动模糊的点扩散函数未知的情况下，估计运动模糊的点扩散函数是运动模糊恢复的前提和关键。

Identification of the Point Spread Function from the Defocus Image Using the Laplacian Operators

利用拉氏算子鉴别散焦模糊图像点扩散函数

Measurements of Point Spread Function of Non-diffracting System under Coherent Illuminate

相干光照明下无衍射系统的点扩散函数的测量

The point spread function ( PSF) of volume holographic imaging system is employed to analyze diffraction imaging characteristics and estimate depth resolution.

利用衍射理论计算体全息成像系统的点扩展函数，评价成像系统的纵度和深度分辨率特性。

Identification the Scale of the Point Spread Function from the Motion Blurred Image

运动模糊图像点扩散函数尺度鉴别

From this curve , we can get thethe scale of point spread function and the spec.

在可能的情况下,总是先估计模糊图像的点扩散函数.

The calculation shows that the system point spread function is quite close to the Dirac delta function.

结果表明：系统的点扩散函数接近理想的δ函数；

Optimization for X-Ray Image Based on Approximated Point Spread Function

基于近似点扩展函数的X射线图像优化

Parameter identification of point spread function in noisy and blur images

含噪声模糊图像的点扩展函数参数辨识

Because ARP protocol features and function, ARP virus spread very quickly, so it have huge damage.

由于ARP的广播特性和协议功能，ARP病毒表现出传播快、破坏性大等特点。

On the assumption that the spot rate of interest is a deterministic function and the information cost of creditor and shareholder is const, result shows that: the credit spread goes to creditor's information cost when maturity date goes to zero.

假设无风险利率是一个确定性的函数，债权人和股东的信息成本为常数，分析了信息成本对信用利差期限结构的影响。

A Solution for Image Blurring Point Spread Function

图象模糊点扩散函数的求解

with regard to its, the paper proposes using the equivalent width of line spread function ( eqw) as an image quality evaluating stan dard) the tests indicate that there is certainly similarity between 1/ eqw and the resolution of the photograph.

在MTF应用方面，提出了以线扩散函数的等效宽度（EQW）作为像质评定的一个标准。试验表明，1/EQW与底片的目视分解力有着一定的近似关系。

The main function of vibration crushed gravel is to squeeze soil, eliminate earthquake liquid and debase liquid grade, it also enhance the property of soil drainage, spread consolidation, improve compressibility and shear strengh.

振动挤密碎石桩在组合型复合地基中主要作用是对土体进行挤密，消除地震液化或降低液化，增加排水性能，加速土体固结，改善土的压缩性和抗剪强度。

Fabrication of Silicon Microlenses Array with Long Focus and Point Spread Function Measurement

长焦距Si微透镜阵列的制作及点扩散函数测量

The numerical value solution of atmospheric radiation transmission equation ( RTE) is used to construct point spread function and implement the restoration of all kinds of atmosphere degraded images under different weather conditions.

该算法利用大气辐射传输方程的数值解构造点扩散函数，可用于不同天气条件下的退化图像的复原。