A three-dimensional extension of the slope chain code: analyzing the tortuosity of the flagellar beat of human sperm. - Andrés Bribiesca-Sánchez; Adolfo Guzmán; Fernando Montoya; Dan S. Díaz-Guerrero; Haydee O. Hernández; Paul Hernandez-Herrera; Alberto Darszon; Gabriel Corkidi; Ernesto Bribiesca (Pattern Anal. Appl., 2024)