image thumbnail

updated 1 month ago

Label Consistent Fisher Vectors (LCFV) by Quan Wang

LCFV is a method to add supervised information to Fisher vectors (machine learning, pattern recognition, compressed sensing)

M=solve_LCFV2(G,C,alpha)

[M,W]=solve_LCFV1(G,C,alpha)

cholcov2(Sigma)

image thumbnail

updated 1 month ago

Kernel PCA and Pre-Image Reconstruction by Quan Wang

standard PCA, Gaussian kernel PCA, polynomial kernel PCA, pre-image reconstruction (signal processing, large data, dimension reduction)

D=distanceMatrix(X)

K=kernel(X,type,para)

K=kernel_NewData(Y,X,type,para)

image thumbnail

updated 5 months ago

Pair-wise Euclidean Distance Matrix by Quan Wang

Computing the distance matrix without loops (data, distance, matrix)

D=distanceMatrix(X)

D=distanceMatrix2(X,Y)

demo1.m

image thumbnail

updated 6 months ago

Circle Hough Transform by Quan Wang

Hough transform for circles in binary images (image processing, computer vision, filtering)

[x,y,theta]=circle_in_image(m,n,xc,yc,r)

[xc,yc,r]=circleHough(I,rmin,rmax,P,FS)

h=gaussian3(FS)

image thumbnail

updated 6 months ago

Active geometric shape models by Quan Wang

The active geometric shape model is a novel approach for fitting geometric shapes in images. (image processing, mathematics, optimization)

AGSM Canvas

DD=myspline(D,theta)

GI=gaussianBlur(I,s)

image thumbnail

updated 7 months ago

Remove image white margin by Quan Wang

This script removes the wide margins of images generated when saving Matlab figures (image processing)

RemoveImageWhiteMargin.m

image thumbnail

updated 7 months ago

GMM-HMRF by Quan Wang

GMM-Based Hidden Markov Random Field for Color Image and 3D Volume Segmentation (image processing, optimization, pattern recognition)

GI=gaussianBlur(I,s)

GMM=get_GMM(X,Y,g)

GMM=get_GMM(X,Y,g)

image thumbnail

updated 7 months ago

HMRF-EM-image by Quan Wang

Implementation of the Hidden Markov Random Field Model and its Expectation-Maximization Algorithm (markov random field, expectationmaximizati..., image segmentation)

GI=gaussianBlur(I,s)

[X mu sigma]=HMRF_EM(X,Y,Z,mu,sigma,k,EM_iter,MAP_iter)

[X mu sigma]=image_kmeans(Y,k)

image thumbnail

updated 7 months ago

Fast Gradient Vector Flow (GVF) by Quan Wang

This package implements the Gradient Vector Flow (GVF) in C++/MEX. (image processing, image segmentation, pattern recognition)

GI=gaussianBlur(I,s)

demo.m

image thumbnail

updated 7 months ago

Decision Tree and Decision Forest by Quan Wang

This software implements decision tree/forest classifier in C++/MEX. (image processing, pattern recognition, machine learning)

TrainDecisionForest(X,Y,forestPath,forestSize,depth,noc)

[Y,P]=RunDecisionForest(X,forestPath)

demo.m

image thumbnail

updated 8 months ago

Dynamic Time Warping (DTW) by Quan Wang

This package implements Dynamic Time Warping (DTW). (signal processing, machine learning, time series)

d=dtw(s,t,w)

demo_dtw.m

image thumbnail

updated 1 year ago

Binary Fisher LDA by Quan Wang

This package implements binary Fisher linear discriminant analysis in both Matlab and Java (statistics, machine learning, pattern recognition)

[l,precision,recall,accuracy,F1]=fisher_testing(f,w,t,l0,...

[w,t,fp]=fisher_training(f,l)

demo.m

image thumbnail

updated 1 year ago

Efficient Multidimensional Scaling (MDS) by Quan Wang

The is the source code of iterated Levenberg-Marquardt algorithm (ILMA) for solving MDS (mathematics, optimization, pattern recognition)

CM=confusion_matrix_reorder(CM)

[X, total_cost]=MDS_training(Dist,d,iter,strategy,display...

[X2]=MDS_encoding(X1,Dist,display_flag)

image thumbnail

updated almost 2 years ago

GPU Implementation for GVF Force Field by Quan Wang

We implement the GVF force field on GeForce GPU using CUDA. (image processing, optimization, signal processing)

info =mha_read_header(filename)

mha_read_volume(info)

Contact us