Kawaf. The point spread function revisited: image restorationusing 2-D deconvolution. Radiography, 2001, Vol. 7, No. 4, pp. 255-262.G. Dougherty and Z.Kawaf, "The point spread function revisited: image restorat
点扩散函数与光学传递函数(Optical Transfer Function, OTF)密切相关,点扩散函数的傅里叶变换即为OTF。光学传递函数是一个关于空间频率的复函数,它的模称为调制传递函数(Modulation Transfer Function, MTF),它的相位称为相位传递函数(Phase Transfer Function, PTF)。一般用MTF进行光学系统的像质评价。PSF在空域表征光...
在星点板后方设置光源，通过星点板遮挡光源，以星点板通光孔作为点光源透光。在目标物距上固定相机，使...
Ultrasound image enhancement: A review 2.2 Point spread function (PSF) The PSF of an imaging device is the response of the system to an ideal point target. It is a 3D shape and is also known as the resolution cell of the system. The PSF is caused by diffraction spreading of the ultraso...
I am looking to convert an image to a Gaussian point-spread function. I have both the image and the pixel information but am unfamilar with MathLab. Any tips would be extremely helpful. Thanks! 댓글 수: 1 Ishan 2022년 12월 1일 If you don’t know the original PSF...
wasproposedtoapproachtheaccuratepointspreadfunctionofthelong鄄exposureatmosphericturbulence鄄 degradedimage,thenaWienerfilterwasdesignedtorestoretheblurredimagesNumericalexperiments showthattherestoremethodisvalidatedtentativelyforthelong鄄exposureatmosphericturbulence鄄 degradednaturalimageswiththelargefieldofviewandlongdistanceTh...
The point spread function, PSF, is very useful and convenient for evaluating the performance of an imaging system [1]. The PSF is the response of an imaging system to a point source and the “raw” image produced by the system is
Aims.We aim at producing a deep, point spread function (PSF) photometric catalog for the VVV surveyJ-,H-, andKs-band data. Specifically, we aim to take advantage of multiple epochs of the survey to reach high limiting magnitudes.
edge spread function (ESF) 刃边扩散函数 real spread function 实扩散函数 edge spread function 【计】 边缘展开函数 chemical spread function 化学扩散函数 相似单词 spread v.[T] 1.伸开,展开,张开,铺开 2.(使)传播,散布,(使)蔓延 3.散播,散布;通知 4.涂,敷,抹 5.将(某事)分散于一段时间内...
PET image reconstruction methods include modeling of resolution degrading phenomena, often referred to as point-spread function (PSF) reconstruction. The aim of this study was to develop a clinically relevant phantom and characterize the reproducibility and accuracy of high-resolution PSF reconstructed im...