This paper describes an octant structure for three-dimensional objects. A direct proce-dure for encoding larger octant belonging to an object is presented. Operators associated with octants are provided. Union, intersection, and complement of octants encoded objects are computed. Finally we develop data structures for octant operating.
"An Octant Structure For Three-Dimensional Objects", Proc. SPIE 0657, Applications of Artificial Intelligence IV, (6 April 1987); doi: 10.1117/12.938508; https://doi.org/10.1117/12.938508