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[数]扩展函数
扩散函数
1、spread knowledge───传播知识
2、spread───vt.传播，散布；展开；伸展；铺开；n.传播；伸展；vi.传播；伸展；adj.伸展的
3、spread operator───扩散算子
4、spread into───蔓延到……；传播到……
5、spread over───分散，传开；传遍，延续；遍布于…
6、spread out───展开；铺开；伸张；伸展，延长; 分散; 铺设; 衍
7、spread down───延伸；蔓延
8、aerogenous spread───气相扩散
9、spread collar───展开领
1、Based on physical optics theorem, point spread function (PSF) is calculated.───根据物理光学理论，计算了光学点扩散函数(PSF)。
2、The point spread function consists of prime point spread function and scatter point spread function.───其点扩展函数分为一次射线点扩展函数和散射点扩展函数两部分。
3、Objective:To derive the energy spread function of the electron pencil beam model from the measured beam profiles.───目的：探讨用离轴比曲线分析电子束照射野笔形束模型能量展宽函数的方法。
4、The Optical Transfer Function( OTF) of a linear optical system can be derived from the Fourier Transfer of the Line Spread Function( LSF).───线性光学XiTong的传递函数 (T F)由线扩散函数的傅立叶变换求出。
5、Finally, the question of the point-spread function's unknown parameter solver is settled by using the precision rule and the max-track way.───采用清晰度准则及最大值跟踪法解决点扩散函数的未知参数求解问题。
6、The key problem in image restoration is to get the point spread function of motion-blurred images and the knowledge about noise.───由运动模糊图像复原出原图像关键问题是获取点扩展函数和噪声信息，其中噪声通常假设为高斯白噪声。
7、Point Spread Function( PSF ) estimation, an essential part for image restoration, has no accurate estimation algorithm at present.───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。
8、The method is based on measuring the point spread function (PSF) by attaching one or two point-sized markers to the main imaging object.───该方法是基于测量点扩散函数（聚砜）附加一个或两个点大小的主要标志成像对象。
9、Blind image restoration is to recover the original image form the observed degraded image with unknown the Point Spread Function (PSF).───盲图像恢复就是在点扩散函数未知情况下从降质观测图像恢复出原图像。