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82 results in File Exchange

Image correspondences using cross-correlation

Version 1.3.0.0 by David Young

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)
  • 6 (Last 30 days)
  • 4.9 / 5
  • Community
  • 9 Dec 2011

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

Version 1.2.3 by Jin Yang

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

- Find extremum of matrix.
  • 2.4K (All time)
  • 9 (Last 30 days)
  • 5.0 / 5
  • Community
  • 20 Jan 2024

Augmented Lagrangian Digital Image Correlation and Tracking

Version 4.2.2 by Jin Yang

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

- Find extremum of matrix.
  • 4.1K (All time)
  • 15 (Last 30 days)
  • 5.0 / 5
  • Community
  • 26 Mar 2024

Finite Element Global Digital Volume Correlation (FE-DVC)

Version 1.0.1 by Jin Yang

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)

Version 2.0.0 by Tao Shen

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

  • 2K (All time)
  • 7 (Last 30 days)
  • 4.8 / 5
  • Community
  • 3 Aug 2019

lpc frame

Version 1.4.0.0 by Speech Processing

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)
  • 3 (Last 30 days)
  • 5.0 / 5
  • Community
  • 2 Jun 2015

IMF for Bearing Fault Diagnosis

Version 1.0.0.0 by Santhana Raj

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

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

p Tube Vocal Tract

Version 1.4.0.0 by Speech Processing

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
  • 977 (All time)
  • 1 (Last 30 days)
  • 5.0 / 5
  • Community
  • 23 Jun 2015

iPeak

Version 7.7.1.0 by Tom O'Haver

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
- A variant of findpeaksG that measures the peak parameters by constructing
- function P=findpeaksG(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
- Comparison of the accuracy of peak measurement between findpeaks and
- A simple self-contained demonstration of the findpeak function (line 54)
- function P=findpeaks(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
- function P=findpeaks(x,y,SlopeThreshold,AmpThreshold,smoothwidth,peakgroup,smoothtype)
  • 7.3K (All time)
  • 2 (Last 30 days)
  • 4.8 / 5
  • Community
  • 4 May 2016

Fast Checkerboard Demodulation for digital Schlieren imaging

Version 1.0.0.1 by S Wildeman

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
  • 383 (All time)
  • 3 (Last 30 days)
  • 5.0 / 5
  • Community
  • 9 Dec 2018

Hilbert-Huang Transform

Version 1.1.0.0 by Alan Tan

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.
  • 43.3K (All time)
  • 14 (Last 30 days)
  • 4.7 / 5
  • Community
  • 31 Mar 2016

Nucleus Toolbox

Version 5.0.0 by Brett Swanson

Sound processing for Nucleus cochlear implant systems

  • 227 (All time)
  • 8 (Last 30 days)
  • 5.0 / 5
  • Community
  • 15 Feb 2024

Continuous Sound and Vibration Analysis

Version 1.10.0.0 by Edward Zechmann

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)
  • 4 (Last 30 days)
  • 4.5 / 5
  • Community
  • 4 Dec 2013

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

glerny/Finnee2016

Version 1.0.0.0 by Guillaume Erny

Matlab toolbox for separation techniques hyphenated high resolution mass spectrometry

  • 222 (All time)
  • 1 (Last 30 days)
  • 4.0 / 5
  • Community
  • 21 Apr 2022

Segmented peak finder findpeaksSG.m

Version 1.0.0.0 by Tom O'Haver

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
  • 307 (All time)
  • 1 (Last 30 days)
  • 5.0 / 5
  • Community
  • 19 Nov 2016

PeakSeek

Version 1.2.0.0 by Peter O'Connor

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)
  • 4 (Last 30 days)
  • 4.4 / 5
  • Community
  • 17 Jan 2011

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)
  • 13 (Last 30 days)
  • 4.3 / 5
  • Community
  • 12 Apr 2023

ipf(arg1,arg2,arg3,arg4)

Version 13.2.0.0 by Tom O'Haver

Keyboard operated peak fitting function for time-series signals.

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

Dielectric characterization by microwave cavity perturbation

Version 1.4.0.0 by Nathan Orloff

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.
  • 698 (All time)
  • 1 (Last 30 days)
  • 4.0 / 5
  • Community
  • 28 Aug 2014

Signal Optimal Smoothing Techniques

Version 1.0 by Guido Travaglini

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

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

Composite_Vocal_Tract_Model

Version 1.0.0.0 by Lawrence Rabiner

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

Composite Vocal Tract

Version 1.7.0.0 by Speech Processing

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)
  • 1 (Last 30 days)
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  • Community
  • 16 Jun 2015

findpeaks2.m

Version 1.4.0.0 by Sudipta Das

Find all the peaks of a surface excluding NaN.

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

Spectrogram

Version 1.4.0.0 by Speech Processing

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)
  • 4 (Last 30 days)
  • -- / 5
  • Community
  • 25 Jun 2015

ACRhyLiCS

Version 1.0.1 by Henning U. Voss

Analysis of Cellular Rhythms from Live Cell Screens

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

GIFT

Version 4.0.5.0 by Cyrus Eierud

Group ICA/IVA software (MATLAB)

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

Bayesian VUS Classifier

Version 1.4.0.0 by Speech Processing

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

Ephys Analysis Toolbox

Version 1.0 by Man Ho Wong

Toolbox for batch analysis of postsynaptic current from neuronal recording

  • 76 (All time)
  • 2 (Last 30 days)
  • -- / 5
  • Community
  • 20 Jan 2023

camera-Intrinsic-Validation-Tool

Version 1.0.0 by xingxingcui

相机内参验证工具APP

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

Augmented Lagrangian Digital Volume Correlation (ALDVC)

Version 1.1 by Jin Yang

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

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

VUS-Voiced/Unvoiced/Silence_Training

Version 1.0.0.0 by Lawrence Rabiner

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

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

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

Function for finding peaks from data array

Version 1.0.0.0 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)
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  • Community
  • 20 Jun 2010

functions_lrr

Version 1.0.0.0 by Speech Processing

functions required for speech processing exercises

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

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.
  • 206 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 11 Dec 2021

findpeaks(ecg_m,no_use,blank)

Version 1.0.0.0 by Dahai Gou

peak detector for ECG detection

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

Find the average path from data

Version 1.0.0.0 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

Version 1.4.0.0 by Edward Zechmann

Simple Fourier Spectral Analysis of sound pressure time record.

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

p_Tube_Vocal_Tract

Version 1.0.0.0 by Lawrence Rabiner

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

Version 1.0.0.0 by Tektronix RF Development Team

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)
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  • Community
  • 26 Oct 2007

Satellite Orbit Computation

Version 1.3.0.0 by Charles Rino

Modified SGP4 code for GPS interface

- peaks=findPeaks(datas,thresh,iSubset,minHits,dXmax,dYmax)
  • 10.8K (All time)
  • 8 (Last 30 days)
  • 5.0 / 5
  • Community
  • 18 Oct 2010

Three Tube Vocal Tract

Version 1.4.0.0 by Speech Processing

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

Isolated Digits Record

Version 1.4.0.0 by Speech Processing

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

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

Cepstrum Computation FIR

Version 1.4.0.0 by Speech Processing

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)
  • 1 (Last 30 days)
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  • Community
  • 16 Jun 2015

Zoom Strips Plot

Version 1.4.0.0 by Speech Processing

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

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

Xsembles

Version 1.0.0 by Jesus Perez

Neuronal ensembles extraction tool

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

Xsembles2P

Version 1.0.0 by Jesus Perez

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

Find inflection points in a data array

Version 1.0.0.0 by Arun ramakrishnan

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

3-D Ray Trace

Version 1.0.0.0 by Charles Rino

3-D Ray Trace function for refractive propagation

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

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

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

2-D Propagation Simulation

Version 1.1.0.0 by Charles Rino

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

Version 1.0.0.0 by Charles Rino

A library for scintillation channel modeling applications.

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

peakperformance

Version 1.0.0.0 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)
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  • Community
  • 2 May 2012

Beacon Satellite Propagation Simulation

Version 1.3.0.0 by Charles Rino

Simulate satellite beacon signal propagation

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

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

Version 1.0.0.0 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

  • 2K (All time)
  • 1 (Last 30 days)
  • 4.0 / 5
  • Community
  • 9 Apr 2013

Find Peaks of the Signal

Version 1.0.0.0 by Saurabh

Find Peaks of the signal and stores the answer in excel

find peaks program to find peaks i have faced problem in findpeaks.m so i have made my code to find peaks of the signal. it find peaks of the signal from excel file and stores peaks value in excel

  • 631 (All time)
  • 1 (Last 30 days)
  • -- / 5
  • Community
  • 29 Jul 2013

Automated Frequency Domain Decomposition (AFDD)

Version 1.7 by E. Cheynet

Modal parameters identification from ambient vibrations measurement using the FDD

]. For the automated procedure, I am using the peak picking function “pickpeaks” developed by [5] and available in [6], which was much more efficient than the Matlab function "findpeaks" for this purpose

  • 4K (All time)
  • 15 (Last 30 days)
  • 5.0 / 5
  • Community
  • 27 Jan 2023

Digital Image Correlation and Tracking

Version 1.2.0.0 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

  • 51.1K (All time)
  • 21 (Last 30 days)
  • 4.5 / 5
  • Community
  • 19 Nov 2010

Peak picking

Version 1.0.0.1 by Christos Saragiotis

Finds peaks or troughs in a vector or 2-D matrix.

pickpeaksPick peaks.Summarypickpeaks is similar to MATLAB's findpeaks in that it returns local peaks and their indices for the input X, but has some advantages It is faster (much faster for large

  • 2.5K (All time)
  • 5 (Last 30 days)
  • 2.0 / 5
  • Community
  • 23 Nov 2023

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