基於梯度場的網格編輯,對應的Paper為《Mesh Editing with Poisson-Based Gradient Field Manipulation》,是Siggraph 2004上的一篇paper,這篇paper與基於拉普拉斯的網格變形方法,統稱為基於微分域的網格變形演算法,這篇paper其實本質上最後的求解公式和基於拉普拉斯的網格變形方法一樣,之所以能夠siggraph,是因為它通過泊松梯度場的原理進行推導,演算法的巧妙之處在於它以頂點(x,y,z)中的每一維作為一個標量場。
Bilateral Filtering for Gray and Color Images Introduction The Idea The Gaussian Case Experiments with Black-and-White Images Experiments with Color Images References Introduction Filtering is perhaps the most fundamental operation of
Convex Function A convex function is a continuous function whose value at the midpoint of every interval in its domain does not exceed the arithmetic mean of its values at the ends of
Note: this article was originally posted on a previous version of the 500px engineering blog. A lot has changed since it was originally posted on Feb 1, 2015. In the future posts, we will be covering how our image classification solution has evolved
Matlab codes for dimensionality reduction (subspace learning) If you find these algoirthms and data sets useful, we appreciate it very much if you can cite our related works: ( Publications sort by topic ) Deng Cai, Xiaofei He, Jiawei
Matlab Codes and Datasets for Feature Learning Dimensionality reduction (Subspace learning) / Feature selection / Topic modeling / Matrix factorization / Sparse coding / Hashing / Clustering / Active learning We provide here some matlab codes of
在機率論中,兩個隨機變數 X 與 Y 之間相互關係,大致有下列3種情況: 當 X, Y 的聯合分布像上圖那樣時,我們可以看出,大致上有: X 越大 Y 也越大, X 越小 Y 也越小,這種情況,我們稱為“正相關”。 當X, Y 的聯合分布像上圖那樣時,我們可以看出,大致上有:X 越大Y 反而越小,X 越小 Y 反而越大,這種情況,我們稱為“負相關”。 當X, Y
Mathematical methods for economic theory Martin J. Osborne CONTENTS TEXT EXERCISES 3.1 Concave and convex functions of a single variable Definitions The twin notions of
Refining the Hough Transform with CAMSHIFT The Circular Hough Transform result is often not very accurate due to noise\details\occlusions. Typical ways of dealing with this are: 1. Hand tuning the Hough Transform
Try out my python implementation for minimizing the Mumford Shah functional. import cv2from AmbrosioTortorelliMinimizer import *img = cv2.imread("image.jpg", 0)solver = AmbrosioTortorelliMinimizer(img)img, edges = solver.minimize()