Sub-Sample Peak Fitting 2D
This small contribution is useful in cases where you search for the position of a peak within an intensity matrix (correlation or energy fields) of low resolution. Since this is only a 2nd-order-fit the sub-sample accuracy will only be acceptable as long as the peak area is 'smooth' around the peak location. This is not an exact solution, since it does not consider any underlying signal characteristics.
Sample usage: % 2d-gauss: center=19.5; sigma=5
>> M = exp(-((1:30) - 19.5).^2/(2*5^2));
>> P = peakfit2d(M'*M);
>> disp(P);
19.5050 19.5050
Cite As
Eric (2024). Sub-Sample Peak Fitting 2D (https://www.mathworks.com/matlabcentral/fileexchange/26504-sub-sample-peak-fitting-2d), MATLAB Central File Exchange. Retrieved .
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- Signal Processing > Signal Processing Toolbox > Measurements and Feature Extraction > Descriptive Statistics >
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1.0.0.0 |