We also compare its performance with the operator that take use of first derivative of Gaussian filter for the edge detection. It proves that the operator, which makes use of the fractional derivative function (FDGF), can improve the performance of edge thinning and edge selectivity for edge ...
THREE-DIMENSIONALNTHDERIVATIVEOFGAUSSIANSEPARABLESTEERABLEFILTERSKonstantinosG.DerpanisandJacobM.Gryn{kosta,jgryn}@cs.yorku.caDepartmentofComputerScienceandCentreforVisionResearch(CVR)YorkUniversity,Toronto,ON,Canada,M3J1P3ABSTRACTThispaperdetailstheconstructionofthree-dimensionalsepara-blesteerablefilters.Theapproac...
Compared with existing derivative wavelets such as Gaussian function-based ones and Mallat s ones, this kind of wavelets is capeble to get a variety of wavelet shapeforms, flwxible to adjust filtering charactertistics and possible tomatch the signal being analyzed better. 这类小波具有时域波形...
ato derive the optimal function for the one-dimensional case in[translate] aare good detection, good localization, and only one response[translate] aTherefore, the first derivative of a Gaussian is used as the edge[translate]
The computational complexity is 2N multiplications per pixel per dimension independent of the size (σ) of the Gaussian kernel. The filter coefficients have a closed-form solution as a function of scale (σ) and recursion order N (N=3, 4, 5). The recursive filters yield a high accuracy ...
This is done by a weighted average using a Gaussian kernel. Using the described process, each particle moves with the average velocity of its neighborhood, resembling the collective velocity of a group of people in the crowd. Given the averaged velocity components that move each particle, e.g....
In this paper, the author generalizes the derivative formulas and Legendre s reation of the comlete elliptic integrals to the Gaussian hypefgeometric function F(a, b; c; x ), thus provid-ing useful eds for the study of F(a, b; c; x ), the generalized Gr tzsch - ring function μ...
Some interesting properties of the fractional derivative of the Riemann zeta function are also investigated to show that there is a chaotic decay to zero (in the Gaussian plane) and a promising expression as a complex power series.关键词: Fractional calculus Riemann zeta function Hurwitz function ...
An electromagnetic absorber is constructed with this time-derivative Lorentz material, and simulations are given which illustrate its effectiveness under illumination by obliquely incident, ultrafast, pulsed Gaussian beams having narrow and broad waists. 展开 ...
Homework Equations f(x+h)-f(x)/h The Attempt at a Solution Hi everybody I was trying to do this function... GaussianSurface Thread Sep 20, 2017 Tags Calculus Derivative Derivative calculus Function Replies: 12 Forum: Calculus and Beyond Homework Help M What is the derivative of a ...