Slice Fueter-regular functions, originally called slice Dirac-regular are generalized holomorphic functions defined over the octonion algebra \({\mathbb {O}}\), recently introduced by M. Jin, G. Ren and I. Sabadini. A function \(f:\Omega _D\subset {\mathbb {O}}\rightarrow {O}}\) is (quaternionic) if, given any quaternionic subalgebra {H}}_{\mathbb {I}}\) of generated a pair {I}}=(I,J)\) orthogo...

Identification of the basal slice in cardiac imaging is a key step to measuring the ejection fraction of the left ventricle. Despite all the effort placed on automatic cardiac segmentation, basal slice identification is routinely performed manually. Manual identification, however, suffers from high interobserver variability. As a result, an automatic algorithm for basal slice identification is ...