Calculate windowed cross correlation between two signals A and B up to a pre-defined lag. Usage is similar to the Matlab function SPECGRAM.
Circularly shifts input data in matrix by columns, according to cross correlation maximum index.
The program takes the columns of an input matrix and calculates the auto and cross correlation of these columns using an fft method. The result is very similar to the xcorr function. This method could be used to evaluate the cross correlation of...
Uses fft to calculate the circular cross correlation of two periodic signal vectors.This is equivalent to xc(k)=sum(u1.*circshift(u2,k)), but much faster (on the order of 500 times faster for a 1024 point signal).
The package also...
This code calculates the cross-correlation for specified time windows over the duration of two input signals. The time windows can be shifted by increments smaller than the time window length. The code is based upon the 'xcorr' function.
normxcorr2_general computes the normalized cross-correlation of matrices TEMPLATE and A. The resulting matrix C contains correlation coefficients and its values may range from -1.0 to 1.0.
Limitations of normxcorr2: The...
Find Displacement between images by using cross-correlation.
Easy: [dr,dc]=findoff(unreg,ref)
[FDOUT, FREQ_AXIS] = FDCORR(A,B,FRANGE) FDCORR Joint frequency and delay correlation Performs an efficient circular cross correlation between two vectors over all possible frequency offsets (Dopplers) between -pi and pi where 2pi is the...
Features: 1. the program calculates the matter power spectrum, temperature spectrum, polarisation- and cross-correlation spectrum of a curved or flat Friedman-Robertson-Walker universe.
2. it calculates the age of the universe,...
In signal processing, cross-correlation is a measure of similarity of two waveforms as a function of a time-lag applied to one of them. This is also known as a sliding dot product or inner-product. It is commonly used to search a long duration...
This program detects a target image in a given image according to maximization of Cross Correlation.
Sample Run:
>> target
This program detects a target in an image Entering the image for MATLAB...
Develop a Matlab program to demonstrate a neural network autoassociative memory. Show the importance of using the pseudoinverse in reducing cross correlation matrix errors. Show the performance of the autoassociative memory in noise. The results...
For use with single wire, multichannel, and tetrode extracellular signals. Allows manual clustering of spikes with analysis of cellular parameters, such as inter-spike interval, cross-correlation, L-ratio, and isolation distance.
1. Introduction
The Flex02-08D by Correlator.com is an USB correlator for single- and dual-channel auto- and cross-correlation. The correlator simultaneously calculates up to four auto- and cross-correlations while recording the raw...
1. Introduction
The Flex02-01D by Correlator.com is an USB correlator for single- and dual-channel auto- and cross-correlation. The correlator simultaneously calculates up to four auto- and cross-correlations while recording the raw...
This zip file contains nine functions related to the generation and use of code sequences. The functions are:
1) corr.m calculates estimates of the periodic and aperiodic cross-correlation function. 2) gold.m generates binary Gold...
Finding corresponding features in a pair of images is the basis of many optic flow, stereo vision and image registration algorithms. One straightforward approach to finding a match is to take a small patch of one image, compute its sliding...
AMI computes and plots average mutual information (ami) and correlation of univariate or bivariate time series for different values of time lag.
USAGE: [amis corrs] = ami(xy,nBins,nLags)
INPUT: xy: either...
CXCOV Circular Cross Covariance function estimates. CXCOV(a,b), where a and b represent samples taken over time interval T, which is assumed to be a common period of two corresponding periodic signals.
a and b are supposed to be...
CH_XCORR Calculate cross-correlograms with a wide range of options.
SYNTAX CCG = CH_XCORR(HC_L,HC_R,FRAME_LENGTH,NOVERLAP,MAXLAG,TAU) CCG = CH_XCORR(...,INHIB) CCG = CH_XCORR(...,IC_T,NORM_FLAG) CCG =... |