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updated 7 hours ago

Shape recognition using 2-D correlation by Diego Barragán

Diego Barragán

Shape recognition using 2-D correlation. Input images are read from webcam. (shape recognition, image processing, signal processing)

rec_shapes.m

clip_shape(imagen)

read_shape(imagn)

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updated 15 hours ago

Chebfun by Chebfun Team

Chebfun Team

Chebfun is an open-source package for numerical computation with functions to 15-digit accuracy (approximation, interpolation, quadrature)

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updated 17 hours ago

Active spline model (win) by Jen Hong Tan

Jen Hong Tan

A new model-based segmentation. It is close to active shape model, but uses Catmull-Rom spline. (computer vision, image processing, medical imaging)

jFlashingStr(hdl, StrContent, dur)

jFlashingStrStreamS(StringContent)

jasplmgomodel(asplm)

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updated 1 day ago

josecamachop/MEDA-Toolbox by José

José

Multivariate Exploratory Data Analysis Toolbox for Matlab (data exploration, matrices, analysis)

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updated 3 days ago

echeever/ConvolveGUI by Erik

Erik

A GUI for graphically demonstrating the convolution process. (filter design, filter analysis, convolution signals)

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updated 5 days ago

Command-line peak fitting function for time-series signals by Tom O'Haver

Tom O'Haver

Command-line peak fitter for time-series signals. Version 6.1, January 2015 (statistics, chemistry, curve fitting)

peakfit(signal,center,window,NumPeaks,peakshape,extra,Num...

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updated 6 days ago

Diffusion-driven Regularization Functional by Baraka Maiseli

Baraka Maiseli

This function addresses the ill-posedness of the super-resolution problem (image processing, signal processing, restoration)

regularizeSR( u, f )

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updated 9 days ago

Parameterized time-frequency representation by Yang Yang

Yang Yang

Polynomial chirplet transform of freuqency domain (signal processing)

PChirplet_Example.m

FPCT_example.m

GWarblet_example.m

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updated 9 days ago

Fast 'n easy smoothing by Damien Garcia

Damien Garcia

SMOOTHN allows automatized and robust smoothing in arbitrary dimension w/wo missing values (smooth, curve fitting, image processing)

smoothn(varargin)

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updated 9 days ago

peakdet by Marco Borges

Marco Borges

Detect Peaks and Depressions in a signal (signal processing, detection, peaks)

peakdet(sig, th, type, mdist)

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updated 12 days ago

Radar Explorer by Scott

Scott

GUI for exploring the FMCW radar signals and the use of FFT's (radar, fmcw, model)

hann(windowLength)

radarExplorer(varargin)

saveData(hObject,event,handles,res)

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updated 13 days ago

ProcessNetwork Version 1.4 Software by Ben Ruddell

Ben Ruddell

Functions for the delineation of Dynamical Process Networks using Information Theory (information theory, statistics, shannon entropy)

AdjMatrices(T,SigThreshT,TvsIzero)

DoProduction(T)

GetEvenBinEdgesGlobal(sampleMat,nBinVect,NoDataCode,useVa...

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updated 14 days ago

Tools for 2-D Tomographic Reconstruction by Ligong Han

Ligong Han

Tools for nonlinear filters & 2-D tomographic reconstruction (signal processing, image processing, reconstruction)

anisodiff(u, n_iter, tao, lambda, option)

bilateral_filter(u, n_iter, gn, lambda_s, lambda_r, option)

bpf(f, sf, BL, BH)

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updated 14 days ago

nasa/T-MATS by Jeffryes

Jeffryes

Simulink Toolbox for the Modeling and Analysis of Thermodynamic Systems, such as gas turbines (simulation, simulink, example)

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updated 15 days ago

dataprocess by Matt Visnovsky

Matt Visnovsky

Given keywords, this sifts through a delimited data-containing folder and performs bulk operations (signal processing, data import, data exploration)

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updated 15 days ago

Multiclass SVM classifier by Tarek Lajnef

Tarek Lajnef

Train and perform multiclasses SVM classifier (classification, signal processing, dendrogram)

Best_feature(mat,label,sigma)

Classify_DSVM(test_data,label,svmstruct)

FWSP_SVM(data,label,sigma,nb_cvfolds)

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updated 16 days ago

Wavelet Entropy by pouya

pouya

Compute wavelet entropy (WE) of the input signal. (signal processing, information theory)

compute_WE.m

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updated 18 days ago

Bezier Curves by Adrian

Adrian

A matlab class for handling n-dimentional bezier curves, parametrized by control points. (bezier curves, matlab, interpolation)

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updated 18 days ago

Example of Doppler radar signal processing by Scott

Scott

Example of Doppler radar signal processing (doppler, signal processing, radar)

doppler(tm,Ft,sig,win_size,shift,wind_flag,mean_remove_fl...

doppler_velocity(Ft,Fd,theta)

hann(windowLength)

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updated 18 days ago

Ramer-Douglas-Peucker algorithm demo by Ligong Han

Ligong Han

A demo of Ramer-Douglas-Peucker algorithm. (demo, signal processing)

DouglasPeucker(PointList, epsilon, showdata)

RDP_GUI

demo.m

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updated 20 days ago

qnorm(matProbabilities,dblMean,matSigmas,boolUseApproximation) by Jorrit M

Jorrit M

Calculates the number of standard deviations based on input probabilities (signal processing, statistics, probability)

qnorm(matProbabilities,dblMean,matSigmas,boolUseApproxima...

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updated 20 days ago

RawSeismicInstrumentCorrection by Martin Mityska

Martin Mityska

Seismic instrument correction routine based on poles and zeros. User is let to do prior filtration. (seismic, instrument correction, transfer function)

RawSeismicInstrumentCorrection(inputTrace, polesVector, z...

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updated 21 days ago

iplot(ref,coox,cooy,obx,oby,nc,bw) by Yiwei

Yiwei

Plot lines with an inverse grayscale over the background gray-scaled picture. (plot, inverse grayscale, graphics)

iplot(ref,coox,cooy,obx,oby,nc,bw)

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updated 23 days ago

powersmooth by Benjamin Friedrich

Smooth noisy time-series faithfully, without distorting lower-order time-derivatives (signal processing, data exploration, approximation)

powersmooth(vec,order,weight)

demo_powersmooth.m

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updated 24 days ago

2D and 3D Remapping by Mohammad Abouali

Mohammad Abouali

Creates Remapper (Interpolant/Extrapolant) for efficient mapping of data on 2D and 3D grids. (interpolation, extrapolation, least square)

ConstructPolyInterpolant2D(xs,ys,xd,yd,nPoly,nInterp)

ConstructPolyInterpolant3D(xs,ys,zs,xd,yd,zd,nPoly,nInterp)

StructuredGrid_3D_Test1.m

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updated 26 days ago

Numerical Integration Toolbox by George Papazafeiropoulos

George Papazafeiropoulos

Contains several numerical integration rules to evaluate the integral of a function (abscissa, adaptive, chebyshev)

GLobIntP.m

JRecCoeff.m

CCIntP(nCC)

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updated 28 days ago

Hann Window by Scott

Scott

Creates a Hann window (signal processing)

hann(windowLength)

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updated 28 days ago

InstantFrequencyOCMethod by Martin Mityska

Martin Mityska

Instantaneous frequency routine which is robust in case of non-zero mean and linearly shifted data. (instantaneous frequen..., analytic signal, hilbert transform)

InstantFrequencyOCMethod(signal,sampleRate)

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updated 28 days ago

Date Vector/Number to ISO 8601 Date String by Stephen Cobeldick

Stephen Cobeldick

Convert a Date Vector/Number to an ISO 8601 Date String. Tokens control the date/time notation. (date, timestamp, iso 8601)

datestr8601(DVN,varargin)

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updated 28 days ago

ISO 8601 Date String to Serial Date Number by Stephen Cobeldick

Stephen Cobeldick

Convert an ISO 8601 Date String to Serial Date Numbers. Auto-detect or select the timestamp style. (calendar date, date, iso 8601)

datenum8601(Str,Tok)

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updated 29 days ago

Welch's estimate of the Spectral Kurtosis by Jerome Antoni

Jerome Antoni

The spectral kurtosis decomposes the kurtosis of a signal as function of frequency (signal processing, spectral kurtosis, kurtogram)

SK_W(x,Nfft,Noverlap,Window)

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updated 30 days ago

Fast Kurtogram by Jerome Antoni

Jerome Antoni

The fast kurtogram decomposes the kurtosis as a function of frequency and frequency resolution (signal processing, spectral kurtosis, kurtogram)

Fast_Kurtogram(x,nlevel,Fs)

demo_Fast_Kurtogram.m

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updated 1 month ago

Cyclic Spectral Analysis by Jerome Antoni

Jerome Antoni

Welch's estimate of the Cyclic Spectral Spectrum and Coherence (signal processing, cyclostationarity, cyclostationary signa...)

SCoh_W.m

CPS_W(y,x,alpha,nfft,Noverlap,Window,opt,P)

Test_SCoh_W.m

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updated 1 month ago

DateStr2Num by Jan Simon

Jan Simon

Convert date string to date number - C-Mex: much faster than DATENUM (datevec, date, number)

DateStr2Num(S, F)

InstallMex(SourceFile, varargin)

uTest_DateStr2Num(doSpeed)

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updated 1 month ago

mmoerdijk/plotter by Mart

Mart

A small matlab program to easily load and plot your data (gui, signal processing, data import)

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updated 1 month ago

ffts(X,V,Xq,method,window) by Dirk-Jan Kroon

Dirk-Jan Kroon

Fast Fourier Transform ( FFT ) of scattered data (signal processing, fft, bspline)

ffts(X,V,Xq,method,window)

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updated 1 month ago

Apply_hough(Img) by Ahmed

Ahmed

hough transform function (signal processing)

Apply_hough(Img)

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updated 1 month ago

OSCAR by Jerome Degallaix

Jerome Degallaix

An optical FFT code to simulate Fabry Perot cavities with arbitrary mirror profiles (fft, physics, optical simulation)

HermitePolynomial(n, x)

LGcoefficient(mat, p, l, lambda, w, curv, gridsize)

LaguerrePolynomial(p, l, x)

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updated 1 month ago

ifilter: Interactive Fourier filter function, version 4.1 by Tom O'Haver

Tom O'Haver

Keyboard-operated interactive Fourier filter function for time-series signals. (signal processing, communications, measurement)

ifilter(ix,iy,icenter,iwidth,ishape,imode,ifilt)

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updated 1 month ago

ReadPhilipsScanPhysLog(filename, channels, skipprep) by Paul Groot

Paul Groot

ReadPhilipsScanPhysLog.m reads Philips scanphyslog files, which are created by Philips MRI scanners. (mri, philips, physiological)

ReadPhilipsScanPhysLog(filename, channels, skipprep)

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updated 1 month ago

Peak detection of a function by Shoaibur Rahman

Shoaibur Rahman

This function detects the transition points (maxima and minima) in a function like y = f(x) (signal processing, image processing, filtering)

findpeaks(y,x,threshold,stepsize)

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updated 1 month ago

SPLINEFIT by Jonas Lundgren

Jonas Lundgren

Fit a spline to noisy data. (spline, splinefit, cubic spline)

ppdiff(pp,j)

ppint(pp,a,b)

splinefit(varargin)

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updated 1 month ago

Marginal distributions of a bivariate function by Shoaibur Rahman

Shoaibur Rahman

This function computes the marginal distributions of each variable in a bivariate function. (probability, computer vision, statistics)

marginaldist(f,x,y,distributionType)

testFunction(x,y)

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updated 1 month ago

Fast Third Order Cross-Cumulant calculation by Brian Liswell

Brian Liswell

Performs a fast third order cross cumulant calculation between the three vectors (x,y,z). (signal processing, mathematics, statistics)

cum3xyz(x,y,z, nsamp, overlap,window)

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updated 1 month ago

Greedy Algorithms and Greedy Analysis Pursuit for Non-linear sparse recovery by Kavya Gupta

Kavya Gupta

Modifications to Greedy Algorithms and Greedy Analysis Pursuit(GAP) for non-Linear sparse Recovery. (algorithm, matlab, optimization)

COSAMPEN(y,A,myfun,N,k)

COSAMPLN(y,A,myfun,N,k)

Grad(fun, x0, deltaFactor)

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updated 1 month ago

Three State land mobile satellite channel model by NAMA AJAY NAGENDRA

NAMA AJAY NAGENDRA

LMS channel (signal processing)

MarkovStateSeries

StateSeriesGenerator(sigma_duration,alpha_duration,xmin,g...

cdf(z)

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updated 1 month ago

Multi-exposure and Multi-focus Image Fusion in Gradient Domain by Sujoy Paul

Sujoy Paul

An algorithm for fusion of a stack of multi-exposure and multi-focus images (image processing, image fusion, multiexposure)

ReconstructGradient.m

ChannelNorm(I,r)

GradientFusion(I)

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updated 1 month ago

inpolygons by Kelly Kearney

Kelly Kearney

Finds points inside multiple polygons, holes possible. (approximation, interpolation, polygon)

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updated 1 month ago

LDA for high dimension small sample size data by Bilwaj Gaonkar

Bilwaj Gaonkar

Linear discriminant analysis when the data dimensionality is high and sample size is much smaller (medical, image analysis, signal processing)

lda_kernelized.m

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updated 1 month ago

A Fully Automated Flowgraph Analysis Tool for MATLAB by Marko Neitola

Marko Neitola

A handy signal flow graph analysis tool for exploring transfer function(s) of a given system. (transfer function, signal flow graph, delta sigma)

find_soe(tfq,TFqs,numonly)

flow_tf(flwfilename)

flowdemo.m

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