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- 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。
- 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。
- Based on the theories of non-diffracting imaging system in coherent light, the measurement system of point spread function (PSF) of non-diffracting imaging system has been presented. 摘要在分析相干光照明下无衍射成像系统理论的基础上，设计了无衍射光成像系统的点扩散函数的测量系统。
- Baed on the theory Of linear system,the imaging resolution both for ideal and practical cases is discussed It turns out that for ideal case the point spread function(PSF)of imaging system is Dirac function. 然后从线性系统的角度出发，研究了理想情况和实际情况下转台模式近场微波成像的分辨特性，理想情况下成像系统的点扩散函数（PSF）就是狄拉克－函数。 PSF的数值模拟结果表明：实际情况下，扫描频带越宽分辨率越高。
- Based on maximum entropy algorithm, analyzing the blurring mechanism with the aberration of point spread function of imaging system, an effective restoration algorithm for blurred image with mist is proposed in this paper. 文章基于最大熵算法，分析了成像系统点扩展函数畸变导致图像模糊的机理，提出了一种有效的薄雾模糊图像的恢复算法。
- To quantificationally analyze point spread function (PSF) models for full digital autofocus method, an evaluation method of mean square error between original image and processed image was proposed for comparison performance of algorithms. 摘要为了对用于全数字对焦的点扩散函数模型进行定量分析，提出用原始图像与处理所得图像的均方差进行性能评价的方法。
- Discussed the achromatic principle of our hybrid acoustic lens system by deducing the point spread function of a point source with a bandwidth through the different imaging system. 利用菲涅耳衍射理论推导出了单频点声源经过单声透镜后的点扩展函数、有一定带宽的点声源经过单声透镜后的点扩展函数,以及有一定带宽的点声源经过我们设计的混合声透镜后的点扩展函数。
- A multiplicative iterative blind image deconvolution algorithm was proposed, in which both estimated image and Point Spread Function (PSF) were assumed to follow Markov Random Field (MRF) models. 提出了一种乘性迭代盲图像去卷积算法，该算法假定被估计的图像与PSF 满足MRF 模型。
- To improve the performance of image restoration algorithms, a modified Singular Value Decomposition(SVD) method was proposed to estimate the Point Spread Function (PSF) of an imaging system. 为了提高图像复原算法的性能，提出了一种改进的奇异值分解法估计图像的点扩散函数。
- The point spread functions under various ellipticity errors and their effects on a round object’s reconstruction are obtained. 得到了不同椭圆度偏差下系统传递函数的变化，及其对圆形物成像重建的影响。
- 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。
