说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。 您的位置：首页 -> 词典 -> 点扩散函数法 1)  point spread function 点扩散函数法 1. The point spread function system and its value in optical image quality assessment; 点扩散函数法在人眼成像质量分析中的特征 2)  point spread function 点扩散函数 1. Performance analysis and evaluation of point spread function for full digital autofocus; 用于全数字对焦的点扩散函数性能分析与评价 2. Investigation of characteristics of point spread functions in myopic patients 近视患者的点扩散函数特征研究 3. Methods:Wavelet transform was applied to estimate the point spread function of the imaging system,and then expectation-maximization algorithm was used to restore temporal CT images. 方法对40幅内耳CT图像,用小波变换的方法来估计CT成像系统的点扩散函数的参数,再用期望最大化迭代图像复原方法对CT图像进行复原。 3)  point spread function(PSF) 点扩散函数 1. 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。 2. 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。 4)  PSF 点扩散函数 1. Investigation about 3D microscopical image restoration and PSF; 三维显微图像复原及点扩散函数的研究 2. With analyzing the point spread function(PSF) and the depth of the field of the designed imaging system,it follows that the depth of field of imaging systems is relied on the refractive angle of the axicon. 通过对该系统点扩散函数和景深的分析,发现可以通过改变轴锥镜的角度来实现不同景深的成像系统。 5)  point-spread function 点扩散函数 1. A kind of method for identifying the point-spread function of a noisy blurred image is put forward based on higher-order statistics(HOS). 基于高阶统计量,提出了一种对含噪模糊图像点扩散函数进行模糊辨识的方法,可以辨识非最小相位的模糊图像,并将其建成非最小相位MA模型,其中的参数用观测图像的高阶累积量来确定。 2. On the basis of the regularization technique for dealing with ill-posed mathematical problems, the unknown clear image as well as the unknown point-spread function are incorporated in a single cost functional by constructing approp-tiate regularization terms. 这种新的数字图象盲恢复的方法,是以解决病态数学问题的正则化技术为基础的,通过构造适当的正则项,将未知清晰图象和未知点扩散函数结合到一个代价泛函中,然后采用数学优化方法对代价泛函进行最小化,以达到同时获取未知清晰图象和辨识未知点扩散函数的目的。 3. Using the deconvolution,the point-spread function and the opticaltransfer function of optical system of the human eye are obtained. 该解卷积算法获得的眼球光学系统的点扩散函数和光学传递函数，可用来评价视网膜图象的质量。 6)  Point spread function (PSF) 点扩散函数 1. 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。 2. The article shows that how to set Point Spread Function (PSF) is the key in the image restoration and proposes an efficient identify approach for motion-blurred para. 通过分析运动模糊图像的成像原理,在摄取图像短暂曝光时间内,造成图像模糊的运动可近似作为匀速直线运动处理,并建立图像的退化模型及恢复模型,得出点扩散函数的准确建立是影响图像恢复质量的关键问题。 补充资料：点对点法 分子式：CAS号：性质：发射光谱分析中，将金属试样制成两个锥体状电极，分别作为光源的上下电极，彼此相对以电弧或火花法进行激发摄谱。该法因无辅助电极，所摄光谱中可无其伴存谱线。 说明：补充资料仅用于学习参考，请勿用于其它任何用途。 参考词条 ©2011 dictall.com