edge spread function
英 [edʒ spred ˈfʌŋkʃn]
美 [edʒ spred ˈfʌŋkʃn]
网络 刃边扩展函数; 边缘扩展函数; 边缘分散函数; 函数
双语例句
- By using knife edge as object, and CMOS sensor as device for image analyzing, we get edge spread function from the image and use differential operation and FFT to obtain modulation transfer function of the lens, then its image quality is known.
以刀口作为目标物，以CMOS作为图像分析器件，从图像中获取刀口函数，经微分和FFT运算，得到成像镜头的MTF（调制传递函数），从而得知其成像品质。 - We measured the edge response function with used CCD, and carried on the Gauss curve fitting after the first order difference, thus obtained the point spread function of optical system.
利用CCD测定黑白跳变边缘的边缘响应，对CCD获取的离散信号作一阶差分后再进行Gauss曲线拟合，得到了光学系统的点扩散函数。 - In the edge spread function method, due to the noise, non uniformity, variability of data, algorithm limitation and so on, errors of measurement will be inevitably produced.
在边缘扩展函数方法中，由于受到噪声，非均匀性，数据的离散性和算法局限性等的影响，测量中将不可避免的产生误差。 - Founds a algorithms assessing system based on composite image. Investigate the influence of edge distilling algorithm, point spread function, background optical intensity and noise on subpixel algorithms. 4.
建立了基于合成图像的算法评价体系，研究了像素级算法、点扩展函数、背景光强以及噪声四种因素对各亚像素算法的影响，并以充足的数据给予支持。