The measurement of modulation transfer function in the image quality evaluation of CT system;
X线CT成像质量评估中的调制传递函数的测试与分析
Measurement of retina modulation transfer function using a grating;
矩形光栅法视网膜调制传递函数测定技术的研究
The use of the modulation transfer function to study intraocular lenses;
6种人工晶状体调制传递函数的研究
A Study of Charge-Coupled-Device MTF Testing Method;
电荷耦合器件调制传递函数测试方法的研究
MTF and imaging quality of axially symmetrical optical systems with synthetic aperture;
轴对称综合孔径光学系统的调制传递函数和成像性质
Research on MTF Measurement Technique for CCD
矩形光栅法测量CCD调制传递函数的研究
When using rectangles as the target,it s difficult to measure the Modulation Transfer Function(MTF) of the space camera accurately because of the registration error between the image of the target and the pixel of the CCD at the initial sampling.
为了减小配准误差对测量的影响,提出了采用粗分与细分相结合的梯形靶标,并推导出在奈奎斯特频率下动态测量调制传函时,由采样初始时刻配准误差所引起的配准误差调制传递函数MTF计算公式,并按此公式分别得到了粗分精度和靶标斜率对测量相机系统MTF精度的影响。
We used Modulation Transfer Function(MTF) to evaluate the influence of vibration on image quality.
采用调制传递函数(MTF)评价振动对像质影响,应用简谐振动为激励,详细推导了航空振动引起角位移和线位移对成像系统的影响,建立了角位移和线位移与像移大小的一般关系式,并结合工程实际进行了量化分析。
A new non-redundant double-circle sparse aperture array configuration,which is composed of two uniform circle arrays,is proposed,since the modulation transfer function(MTF) of the common uniform circle array usually has zero-value regions within the cut-off spatial frequency,which prejudice the image quality.
针对传统稀疏孔径均匀圆周阵列的调制传递函数在截止频率区域内易出现零值而影响成像质量的问题,提出一种由两个均匀圆周阵列嵌套构成的无冗余的双圆周稀疏孔径结构。
Slice sensitivity profile(SSP) was measured from which modulation transfer function (MTF) were got by Fourier transfer.
把del-ta模体沿Z轴固定于CT机架的中心,使用腹部螺旋扫描模式,进行扫描和重建,然后制作各位置图像序列的层敏感度曲线(SSP),并对各图像序列的SSP进行傅里叶变换得到调制传递函数(MTF)。
The measurement of modulation transfer function (MTF) of the sampled imaging opto-electronic system is rather complex and irrepeatable for their shift-variant characteristics.
离散光电成像系统因其不再具有平移不变特性,它的调制传递函数测试具有相当的复杂性和不稳定性。
This paper introduces a new method for measuring modulation transfer function (MTF) of charge coupled devices (CCD).
介绍了一种测电荷耦合器件（CCD）调制传递函数（MTF）的新方法。
Moreover,Modulation Transfer Function(MTF) of the image is 99.
17″,一次调整时间<1s,偏流角调整过程中图像的调制传递函数(MTF)值为99。
It is a new method for measuring the modulation transfer function (MTF),by using laser speckle, which belongs to the methods for measuring MTF using random targets.
如何测量焦平面陈列的调制传递函数MTF来评价器件的成像品质就显得越来越重要。
wave-optical MTF
波动光学调制传递函数
Study on Optical Modulate Transfer Function of CCD and its Measuring Method;
CCD光学调制传递函数及检测方法研究
Experimental study on the modulation transfer function of liquid crystal spatial light modulator
LC-SLM调制传递函数的实验研究
Effect of carrier diffusion on modulation transfer function of CCD
载流子扩散对CCD调制传递函数的影响
Study on the Contrast Transfer Function of Line-array Fiber-optic Image Bundles;
线列光纤传像束对比度调制传递函数研究
Numerical Analysis of Dynamic Modulation Transfer Function for High-Resolution Aerial Camera
高分辨率航空相机动态调制传递函数数值分析
The measuring ranges of the apparatus were 0.1￣1.5 for IVA, 3?100 for MTF, and 0.5￣16Hz for temporal frequency.
其测量范围为：视力0．1～1．5； 调制传递函数3～100；
The Study on the Modulation Transfer Function of Heperspectral Imager Imaging-Link;
超光谱成像仪成像链的调制传递函数研究
Research on MTF Measurement Technique for CCD
矩形光栅法测量CCD调制传递函数的研究
The Coupling MTF Analysis of Flexible Image Bundles and CCD Pixels
光纤传像束同CCD像元耦合的平均调制传递函数分析
Contrast Sensitivity and Modulation Transfer Function in the Pseudophakic Eyes with Multifocal and Accommodating Intraocular Lenses Implantation;
多焦点及可调节人工晶状体眼的对比敏感度及调制传递函数
MTF of Line-Array CCD on Detection Performance for Hyperspectral Imager
基于超光谱成像探测系统的线阵CCD的调制传递函数特性研究
The Analysis of the Sampling Modulation Transfer Function and the Influence on the Gaussian Spectra
色散型光谱仪采样调制传递函数及对高斯型光谱谱线的影响
Research on Average MTF of Line-array CCD with Contrast Method
超光谱成像探测系统的线阵CCD平均调制传递函数
Modulation transfer function measurement in ICF hydrodynamic instability experiments
ICF流体力学不稳定性实验中调制传递函数的测量
A study on the feasibility of retina modulation transfer function measuring equipment using a holographic grating
全息光栅法视网膜调制传递函数测定装置的实验研究
XPM Transfer Function in Loss Dispersive Nonlinear Fiber with Pump Wave SPM Effect
有损色散非线性光纤中考虑泵浦自相位调制效应下的交叉相位调制传递函数
Research on Matrix Converter Based on Direct Transfer Function Control
基于直接传递函数调制的矩阵变换器研究