Antonio M. López 0001Felipe LumbrerasJoan Serrat 0002Juan José VillanuevaEvaluation of Methods for Ridge and Valley Detection.327-335199921IEEE Trans. Pattern Anal. Mach. Intell.4https://doi.org/10.1109/34.761263http://doi.ieeecomputersociety.org/10.1109/34.761263https://www.wikidata.org/entity/Q57841097db/journals/pami/pami21.html#LopezLSV99