％ COMPDIR Computes a search direction in a subspace defined by Z. ％ Helper function for NLCONST. ％ Returns Newton direction if possible. ％ Returns random direction if gradient is small. ％ Otherwise, returns steepest descent direction. ％ If the steepest descent direction is small it computes a negative ％ curvature direction based on the most negative eigenvalue. ％ For singular matrices, returns steepest descent even if small.
標簽： Z. direction Computes function
上傳時間： 2014-01-24
上傳用戶：Thuan
％DEFINEV Scaling vector and derivative ％ ％ [v,dv]= DEFINEV(g,x,l,u) returns v, distances to the ％ bounds corresponding to the sign of the gradient g, where ％ l is the vector of lower bounds, u is the vector of upper ％ bounds. Vector dv is 0-1 sign vector (See ?? for more detail.) ％ ％ Copyright (c) 1990-98 by The MathWorks, Inc. ％ $Revision: 1.2 $ $Date: 1998/03/21 16:29:10 $
標簽： DEFINEV derivative distances Scaling
上傳時間： 2013-12-24
上傳用戶：sz_hjbf
Tracking a moving object through several frames, provided changes from frame to frame are on the order of +-(10 + "X Range") pixels in the X direction and +-(10 + "Y Range") in the Y direction is done automatically because of a relatively large area of exploration during the search for an optimal (new) position for a particular control point and a very strong force exerted by large values of the image gradient.
標簽： frame Tracking provided changes
上傳時間： 2015-11-17
上傳用戶：zgu489
圖像處理的關于Snakes : Active Contour Models算法和水平集以及GVF的幾篇文章，文章列表為： [1]Snakes Active Contour Models.pdf [2]Multiscale Active Contours.pdf [3]Snakes, shapes, and gradient vector flow.pdf [4]Motion of level sets by mean curvature I.pdf [5]Spectral Stability of Local Deformations Spectral Stability of Local Deformations.pdf [6]An active contour model for object tracking using the previous contour.pdf [7]Volumetric Segmentation of Brain Images Using Parallel Genetic AlgorithmsI.pdf [8]Segmentation in echocardiographic sequences using shape-based snake model.pdf [9]Active Contours Without Edges.pdf 學習圖像處理的人必看的幾篇文章
標簽： Contour Snakes Active Models
上傳時間： 2014-01-15
上傳用戶：wqxstar
Hybrid Monte Carlo sampling.SAMPLES = HMC(F, X, OPTIONS, GRADF) uses a hybrid Monte Carlo algorithm to sample from the distribution P ~ EXP(-F), where F is the first argument to HMC. The Markov chain starts at the point X, and the function GRADF is the gradient of the `energy function F.
標簽： Carlo Monte algorithm sampling
上傳時間： 2013-12-02
上傳用戶：jkhjkh1982
sfrmat is a Matlab function that provides a spatial frequency response* (SFR) from a digital image file containing a slanted-edge feature. The specific edge-gradient algorithm follows the intent of the standard ISO 12233, developed by Technical Committee ISI/TC 42, for resolution measurements for electronic still pictorial cameras.
標簽： frequency function provides response
上傳時間： 2014-01-20
上傳用戶：qunquan
用于汽車巡航控制系統的模糊控制算法，以及如何利用梯度下降法和卡爾曼濾波來優化模糊控制器的算法。The files illustrate a simple fuzzy control algorithm as applied to an automobile cruise control system. The files also illustrate how gradient descent and Kalman filtering can be used to optimize the fuzzy controller .
上傳時間： 2016-09-07
上傳用戶：xiaodu1124
壓縮包里包含了無約束優化問題常用的幾種求解方法的源程序：變量輪換法（variable_rotation.m）、最速下降法（steepest_descent.m）、修正牛頓法（modified_newton.m）、共軛梯度法（conjugate_gradient.m）。另外，coefficient_matrix.m為目標函數系數獲得矩陣，minval.m為最小值計算函數，gradient.m為梯度計算函數
標簽： variable_rotation steepest_descent modified_newt 源程序
上傳時間： 2017-01-01
上傳用戶：ztj182002
演算法評估 用空間和時間評估演算法效能 時間複雜度(Time Complexity) 空間複雜度(Space Complexity) 效能評估 效能分析(Performance Analysis)：事前評估 效能評估(Performance Measurement)：效能量測 評估時均假設處理的資料量為n到無窮大
標簽： 演算
上傳時間： 2015-06-13
上傳用戶：18007270712
選擇文件 X 無刷直流電動機Matlab仿真建模及模型中S函數
標簽： Matlab 無刷直流電動機 仿真建模 S函數 模型 編寫
上傳時間： 2017-03-13
上傳用戶：Lincy
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