Detecting discontinuity points from spectral data with the quotient-difference (qd) algorithm
The authors introduce a new technique for the localization of discontinuity points from spectral data. Through this work, they are able to detect discontinuity points of a \(2\pi\)-periodic piecewise smooth function from its Fourier coefficients. This could be useful in detecting edges and reducing the effects of the Gibbs phenomenon.
scientific article; zbMATH DE number 6015754
scientific article