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The changes of the line spread function(LSF)and modulation transfer function(MTF)of scanner due to the variation of detector bias voltage are analyzed. 通过实验和计算,分析由于探测器偏置电压的不同所产生的线扩展函数(LSF)变化和随之导致的扫描器调制传递函数(MTF)变化。
The Optical Transfer Function( OTF) of a linear optical systemcan be derived from the Fourier Transfer of the Line Spread Function( LSF). 线性光学系统的传递函数(tf)由线扩散函数的傅立叶变换求出。
Abstract: The changes of the line spread function(LSF)and modulation transfer function(MTF)of scanner due to the variation of detector bias voltage are analyzed. 文摘:通过实验和计算,分析由于探测器偏置电压的不同所产生的线扩展函数(LSF)变化和随之导致的扫描器调制传递函数(MTF)变化。
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。
line spread function(LSF) 线扩布函数
To achieve high accuracy,three strategies are adopted:1) a number of line spread functions (LSF) on each edge are extracted; 为提高辨识的精确度,采取了三种策略:1)从每个边缘提取多个线扩展函数;
line spread function 线扩散函数
extrinsic line spread function 非本征线扩展函数, 非本征线展宽函数
lines spread function 线扩散函数
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。
Setting the point spread function (PSF) of motion-blurred images is the key problem in image restoration. 摘要点扩展函数的设置是影响图像复原的关键问题。
We assume the spatial fluctuation relative to the smooth point spread function(PSF) of the target star is due to errors. 结果显示，在星场疏散的情形下，两种方法得到的光度曲线差异不大。
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。
During the transmission of digital image, the signal may be blurred by the Point Spread Function (PSF) of the 2-dimensional channel. 数字图像在传输过程中，由于受到二维信道的点扩展函数(PSF)的影响，会产生图像模糊问题。
Point Spread Function（PSF） estimation，an essential part for image restoration，has no accurate estimation algorithm at present. 摘要点扩展函数估计是图像复原的重要内容，目前还没有精确估计的算法。
A parametric blind deconvolution (PBD) algorithm was presented based on a new model of the 3-D Gaussian point spread function (PSF) to restore the microscopic optical slices. 摘要提出了一种新的基于三维高斯点扩展函数(PSF)模型的参数盲解卷积(PBD)算法，并将此算法用于显微光学切片的图像复原。
When Point Spread Function（PSF） is not known or only partially determined，restoration of the degraded images is called Blind Image Restoration（BIR）. 摘要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。
Borrowing demarcation line and demarcation line spreading are common phenomena in processes of workpiece quenching in liquid. 交界线借用和交界线扩展是工件在液态介质中淬火冷却时经常发生的事情。
The stability of how light is scattered in the NICMOS camera, called the point spread function (PSF), is key for using Hubble images to recover planets. 光分散在NICMOS照相机中的稳定性能，亦称为点分散功能(PSF)，对使用哈博望远镜发现行星是一项关键技术。
The conclusion is that suitable departure helps to improve the resolution of the imaging, and not to bring any unreasonable side lobe that influences the point spread function. 结果表明，适当的偏心量有利于提高环状干涉条纹成像的分辨率，又不致于产生对点扩展函数有影响的旁瓣。