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- beam spread function 射束扩展函数
- The ratio of the flux emitted within the solid angle defined by the beam spread, to the bare lamp flux. 由光束角限定的立体角内辐射出的光通量与裸光源光通量之比。
- Incandescent reflector test lamps shall be of the widest beam spread available. A Type MR test lamp shall have a dichroic reflector. 带反光杯的白炽灯测试用灯泡应当有最宽的扩展光束,MR型测试灯应当有分色反射灯。
- 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。
- Simulation results show that aberration originates mainly from beam spread, and diffractive aberration is larger than spherical aberration and chromatic aberration. 模拟结果表明原子束的发散角是产生像差的主要因素,衍射像差大于球差和色差。
- 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。
- 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。
- You'll be tempted to clean the wind, lifted the pink ray of soft, floral bouquet of beam spread of the fishes One, Get Fit , tender heart, along the lake Subtle soft, lightly-mile heart of a beauty . 清新的风儿按捺不住,撩起一丝柔媚的粉红,一束束花香蔓延出一丝丝的氤氲,窈窕清逸,妩媚了心湖里一道柔软的婉约,翩跹了心海里一次袅娜的美丽。
- 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。
- Abstract: 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. 文摘: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。
- 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 merit can be realized with the aid of the beam delivery system, whose functions are energy adjustment, energy modulation, beam spreading and collimation. 这一优点的实现主要依靠束流配送系统,它包含质子能量调节与调制、束流扩展和准直等功能。
- The effect of obscuring ratio on the beam spreading was analyzed.The results show that the obscuring ratio has obvious influence on the beam spreading in weak turbulence. 结果表明,对于均强聚焦光束湍流大气传输,在弱湍流效应条件下,光斑扩展受遮拦比影响较大;
- 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。