Main Content

82 results in File Exchange

Image correspondences using cross-correlation

Find matching features in pairs of images using normalised cross-correlation: class file and demo.

- FINDPEAKS Finds the local maxima of an array.
  • 9.9K (All time)
  • 2 (Last 30 days)
  • 4.9 / 5
  • Community
  • 9 Dec 2011

Augmented Lagrangian Digital Image Correlation and Tracking

2D-AL-DIC(Augmented Lagrangian DIC) is a fast, parallel-computing DIC algorithm which also considers global kinematic compatibility.

- Find extremum of matrix.
  • 4.2K (All time)
  • 18 (Last 30 days)
  • 5.0 / 5
  • Community
  • 26 Mar 2024

Augmented Lagrangian Digital Volume Correlation (ALDVC)

Adaptive Lagrangian Digital Volume Correlation - volumetric displacement and strain measurement based on a hybrid local-global approach

  • 2K (All time)
  • 3 (Last 30 days)
  • 5.0 / 5
  • Community
  • 9 Mar 2024

Finite Element Global Digital Volume Correlation (FE-DVC)

Finite-element-based global DVC method (guarantee global kinematic compatibility and decrease noise by adding regularization penalties).

  • 1.4K (All time)
  • 3 (Last 30 days)
  • 5.0 / 5
  • Community
  • 15 Jul 2021

hilbert-huang transform(HHT)

HHT transform for one-dimensional signal. Contains Empirical mode decomposition (EMD) program.

  • 2.1K (All time)
  • 1 (Last 30 days)
  • 4.8 / 5
  • Community
  • 3 Aug 2019

Segmented peak finder findpeaksSG.m

Peak finder for signals containing peaks of widely variable widths.

Segmented peak finder, findpeaksSG.mn, has the same syntax as findpeaksG.m, except the 3rd to 6th input arguments can be vectors with one entry for each segment. function

- Segmented peak finder, same syntax as findpeaksG except 3rd to 6th inut
- Script to test segmented peak finder findpeaksSG. Requires findpeaksSG.m
  • 309 (All time)
  • 2 (Last 30 days)
  • 5.0 / 5
  • Community
  • 19 Nov 2016

IMF for Bearing Fault Diagnosis

performs HHT on signal & IMF is plotted for Condition monitoring of vibration based bearing fault

- Find peaks.
  • 4.8K (All time)
  • 9 (Last 30 days)
  • 4.8 / 5
  • Community
  • 19 Jun 2012

iPeak

Keypress operated interactive peak detector function.

- Comparison of the peak detection functions findpeaksG, findpeaksb,
- function P=findpeaksG(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
- function P=findpeaks(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
- function P=findpeaks(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
- A variant of findpeaksG that measures the peak parameters by constructing
See all
  • 7.3K (All time)
  • 1 (Last 30 days)
  • 4.8 / 5
  • Community
  • 4 May 2016

Hilbert-Huang Transform

This submission is a realization of the Hilbert-Huang transform (HHT).

with spsnip_gui available at http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=11002&objectType=FILE.Essential files: plot_hht.m, emd.m, findpeaks.mAccompanying files: Hum.wav

- Find peaks.
  • 43.4K (All time)
  • 12 (Last 30 days)
  • 4.7 / 5
  • Community
  • 31 Mar 2016

Continuous Sound and Vibration Analysis

This program analyzes sound and vibrations data using metrics for continuous noise and vibrations.

- function P=findpeaks(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
  • 8.7K (All time)
  • 9 (Last 30 days)
  • 4.5 / 5
  • Community
  • 4 Dec 2013

lpc frame

This exercise shows how the method of linear predictive coding (LPC) models a speech frame.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 1.4K (All time)
  • 2 (Last 30 days)
  • 5.0 / 5
  • Community
  • 2 Jun 2015

p Tube Vocal Tract

This exercise computes the frequency response of a p-tube model of a human vocal tract.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 978 (All time)
  • 1 (Last 30 days)
  • 5.0 / 5
  • Community
  • 23 Jun 2015

VUS-Voiced/Unvoiced/Silence_Training

This exercise utilizes four programs to train a Bayesian classifier and classify frames of signals.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 1.2K (All time)
  • 1 (Last 30 days)
  • 5.0 / 5
  • Community
  • 14 Jul 2015

Fast Checkerboard Demodulation for digital Schlieren imaging

Track optical distortions in a checkerboard pattern with high accuracy in real-time using the FCD method

- Find the n largest peaks (larger than thresh) in an image
  • 386 (All time)
  • 2 (Last 30 days)
  • 5.0 / 5
  • Community
  • 9 Dec 2018

Nucleus Toolbox

Sound processing for Nucleus cochlear implant systems

  • 254 (All time)
  • 7 (Last 30 days)
  • 5.0 / 5
  • Community
  • 15 Feb 2024

findpeaksInterp

Version 1.0.1 by William Rose

Plug-in substitute for findpeaks(). Uses parabolas to interpolate to estimate "true" peaks.

findpeaksInterp(): Estimate peaks by parabolic interpolation. Finds the parabola passing through each peak found by findpeaks() and the two neighboring points. Returns the x,y coordinates of the

- Estimate peaks by parabolic interpolation.
  • 211 (All time)
  • 3 (Last 30 days)
  • -- / 5
  • Community
  • 11 Dec 2021

  • 8.1K (All time)
  • 2 (Last 30 days)
  • 4.0 / 5
  • Community
  • 13 Jul 2009

glerny/Finnee2016

Matlab toolbox for separation techniques hyphenated high resolution mass spectrometry

  • 224 (All time)
  • 2 (Last 30 days)
  • 4.0 / 5
  • Community
  • 21 Apr 2022

peaks2 - find peaks in 2D data without additional toolbox

Version 1.1.3 by Kristupas Tikuišis

Find peaks in 2D data just as with Matlab's 'findpeaks' function

filters can be selected such as the minimal absolute value or threshold above the immediate surroundings etc.It mimicks the same syntax as Matlab's own 'findpeaks' function but does not require any

  • 1.3K (All time)
  • 24 (Last 30 days)
  • 4.3 / 5
  • Community
  • 12 Apr 2023

ipf(arg1,arg2,arg3,arg4)

Keyboard operated peak fitting function for time-series signals.

  • 6.9K (All time)
  • 4 (Last 30 days)
  • 3.7 / 5
  • Community
  • 23 Dec 2018

findpeaks(ecg_m,no_use,blank)

peak detector for ECG detection

- function [pks,locs] = findpeaks(ecg_m,no_use,blank)
  • 252 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 26 Sep 2016

Find the average path from data

by Zheng

Find the average path from scattered data

- FINDPEAKS Find local peaks in data
  • 70 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 29 Aug 2016

Calibrated Spectral Analysis

Simple Fourier Spectral Analysis of sound pressure time record.

- function P=findpeaks(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
  • 3.4K (All time)
  • 7 (Last 30 days)
  • -- / 5
  • Community
  • 28 May 2014

PeakSeek

Find peaks in vector

Specify a vecter, a minimum peak separation, and a minimum peak height, and this function will find the peaks.. about 250 times faster than findpeaks

- Alternative to the findpeaks function. This thing runs much much faster.
  • 4.1K (All time)
  • 2 (Last 30 days)
  • 4.4 / 5
  • Community
  • 17 Jan 2011

findpeaks2.m

Version 1.4.0 by Sudipta Das

Find all the peaks of a surface excluding NaN.

- Find all peaks for a two dimentional matrix
  • 725 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 2 Jun 2014

Signal Optimal Smoothing Techniques

Producing high- and low-resolution smoothers by means of Spectral Analysis

- Find peaks.
  • 778 (All time)
  • 3 (Last 30 days)
  • -- / 5
  • Community
  • 2 May 2017

Function for finding peaks from data array

by Aravind

Function helps in finding the peaks more effectively than findpeaks() defined in Matlab library.

I was not able to get the peaks from my experimentally obtained data because of its random nature. As a result the findpeaks() defined in Matlab library was not giving results as expected. Hence I

- Function used to get the peaks (local maxima) from the given data
  • 1.1K (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 20 Jun 2010

Composite Vocal Tract

Illustrates vocal tract response, glottal pulse, radiation response for voiced and unvoiced speech

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 1.1K (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 16 Jun 2015

Composite_Vocal_Tract_Model

Simple vocal tract model from glottal pulse to radiation at the lips.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 189 (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 11 Sep 2015

p_Tube_Vocal_Tract

Compute impulse and frequency responses of p-tube vocal tract model.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 168 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 11 Sep 2015

Collecting data from RSA6100A

Data import and peak search

- Function to locate the positive peaks in a noisy x-y data
- Interactive findpeaks script with peak-zoom feature,
- Interactive demo of findpeaks function with peak-zoom feature.
- Interactive findpeaks script for pre-defined data in x,y.
- A simple self-contained demonstration of the findpeak function (line 48)
  • 1.3K (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 26 Oct 2007

Dielectric characterization by microwave cavity perturbation

A custom toolbox and example code to measure complex permittivity by microwave cavity perturbation

- Alternative to the findpeaks function. This thing runs much much faster.
  • 703 (All time)
  • 3 (Last 30 days)
  • 4.0 / 5
  • Community
  • 28 Aug 2014

GIFT

Group ICA/IVA software (MATLAB)

  • 124 (All time)
  • 7 (Last 30 days)
  • -- / 5
  • Community
  • 21 Feb 2024

ACRhyLiCS

Analysis of Cellular Rhythms from Live Cell Screens

  • 2 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 9 Feb 2021

Spectrogram

This exercise plots wideband and narrowband speech spectrograms for a user-designated speech file.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 3.1K (All time)
  • 3 (Last 30 days)
  • -- / 5
  • Community
  • 25 Jun 2015

Isolated Digits Record

Implements a speaker trained, template-based, isolated digit recognizer

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 1.3K (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 16 Jun 2015

Cepstrum Computation FIR

This exercise compares three algorithms for computing the complex cepstrum of two finite sequences.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 1K (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 16 Jun 2015

Three Tube Vocal Tract

This exercise computes the frequency response of a three-tube model of a human vocal tract.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 1.1K (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 16 Jun 2015

Bayesian VUS Classifier

This exercise utilizes four programs to train a Bayesian classifier and classify frames of signals.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 1.8K (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 16 Jun 2015

Zoom Strips Plot

A simple way to visualize and understand speech waveforms by plotting and examination.

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 795 (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 16 Jun 2015

Ephys Analysis Toolbox

Toolbox for batch analysis of postsynaptic current from neuronal recording

  • 77 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 20 Jan 2023

  • 12 (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 2 Oct 2024

Xsembles

Neuronal ensembles extraction tool

  • 1 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 17 Apr 2024

Xsembles2P

Tool to analyze two-photon calcium imaging videos, extract neuronal activity, and identify neuronal ensembles (ONsembles and OFFsembles).

  • 22 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 24 Apr 2024

peaks - 1D peak finding without Signal Processing Toolbox

Version 1.0.2 by Kristupas Tikuišis

Find peaks in 1D data | Matlab findpeaks equivalent

surroundings or predefined minimal spacing between the peaks.It's a replacement for Matlab's proprietary 'findpeaks' function using the same syntax. Does not require any additional Matlab toolbox, just the base

  • 109 (All time)
  • 12 (Last 30 days)
  • -- / 5
  • Community
  • 3 Apr 2023

Find inflection points in a data array

returns the indices at which the data reverses direction.

- function [datapeaks datavalleys] = findpeak(plotswitch,datain)
  • 1.4K (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 2 May 2012

functions_lrr

functions required for speech processing exercises

- % function to find peaks (formant frequencies) and bandwidths (formant
  • 2K (All time)
  • 1 (Last 30 days)
  • 2.0 / 5
  • Community
  • 26 Mar 2014

findAllPeaks

Version 1.0.5 by Daniel

Complements find peaks function with the possibility to find all peaks, both local maximums, and local minimums.

Besides complementing find peaks function with the possibility to find all peaks, both local maximums, and local minimums.This also provides a possible workaround for the findpeaks bug pointed out by

  • 692 (All time)
  • 2 (Last 30 days)
  • 5.0 / 5
  • Community
  • 18 Jan 2020

Satellite Orbit Computation

Modified SGP4 code for GPS interface

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 10.9K (All time)
  • 6 (Last 30 days)
  • 5.0 / 5
  • Community
  • 18 Oct 2010

Beacon Satellite Propagation Simulation

Simulate satellite beacon signal propagation

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 2K (All time)
  • 2 (Last 30 days)
  • 5.0 / 5
  • Community
  • 18 Oct 2010

2D Finite Element Global Digital Image Correlation (FE-DIC)

Finite-element-based global DIC method (guarantee global kinematic compatibility and decrease noise by adding regularization penalties).

- Find extremum of matrix.
  • 2.5K (All time)
  • 5 (Last 30 days)
  • 5.0 / 5
  • Community
  • 20 Jan 2024

peakperformance

Version 1.0.0 by Peter O'Connor

Find local peaks in a signal

Efficiently finds local maxima in a signal (NlogN time) - these are defined as points in which are the higher than any other point within a specified range.Matlab's "findpeaks" has a slightly

  • 358 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 2 May 2012

3-D Ray Trace

3-D Ray Trace function for refractive propagation

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 5.6K (All time)
  • 2 (Last 30 days)
  • 4.0 / 5
  • Community
  • 27 Sep 2010

Finding local maxima's and minima's of a curve

Version 1.0.0 by Farhad VISHKAEE

This mfile finds local maxima's and minima's of a curve. The bugs have been fixed in this version.

to find local maxima and minima and is % optional, it has four elements: [x_min x_max y_min y_max]% output: is the xy position of local maxima's and minima's% SEE ALSO findpeaks

  • 2.1K (All time)
  • 1 (Last 30 days)
  • 4.0 / 5
  • Community
  • 9 Apr 2013

Angle resolution multiuser scenario

Version 1.0.0 by Craig

Plots angle error % as a function of input SNRs vs angular separation for dual target scenario

; autocorrellation matrixes in time-domain, & then uses 'findpeaks' to discern dual targets. It does not plot the normalized beam pattern, but instead uses the find-peaks to determine error % of resolve of both

  • 0 (All time)
  • 0 (Last 30 days)
  • -- / 5
  • Community
  • 26 Aug 2025

3-D Propagation Code

3-D Propagation simulator for turbulent media

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 2.6K (All time)
  • 3 (Last 30 days)
  • -- / 5
  • Community
  • 4 Oct 2010

2-D Propagation Simulation

Simulate Propagation in 2-D

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 2.1K (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 24 Sep 2010

Scintillation Channel Modeling Utilities

A library for scintillation channel modeling applications.

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 1.5K (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 3 Oct 2010

2-D Propagation Code for Bounded Media

2-D Propagation Code for propagation in refractive media over irregular surface.

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 1.1K (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 4 Oct 2010

Digital Image Correlation and Tracking

Version 1.2.0 by Christoph Eberl

Calculate displacement and strain from a series of images

windows systems so far. Linux Users need to copy cpcorr.m and findpeak.m into their work folder and change it there. After renaming it (e.g. cpcorr2.m) the calling lines should be changed, too, in the

  • 51.2K (All time)
  • 18 (Last 30 days)
  • 4.5 / 5
  • Community
  • 19 Nov 2010

Load more