Fuzzy warping of chromatograms

A uniform representation of the entire chromatographic signals in the form of a data matrix requires signals alignment. Available approaches to signals alignment (or warping) are time consuming or require time-consuming optimization of input parameters. The proposed approach to signals warping exploits a different idea, and, namely, it requires detection of a few more intense peaks in individual chromatograms only and it aligns signals, once the correspondence of the detected peaks is established. Identification of peaks is not required, as their correspondence is established, based on the fuzzy matching approach. Performance of the proposed method is evaluated for the simulated and experimental chromatograms with the number of points varying from a few hundred to several dozen thousands of points.