We conclude that, in agreement with individual experiments, the current overall overlay accuracy is of the order of 2-3 mm in the x-y plane, which is in line with current conventional SN systems. The method which is most in need of improvement is registration, hence we wish to investigate the application of the proposed photo-consistency method further.

During the process of human childbirth, obstetric forceps delivery is a justified alternative to Caesarean section when vaginal delivery proves difficult or impossible. Currently, training of forceps interventions is done on a real case due to the lack of realistic dummy models. This paper presents a basic augmented reality implementation of a forceps delivery which provides a platform for both training of forceps placement and manipulation for junior obstetricians as well as the assessment of any mechanical effects these actions may have on the fetus, and the fetal head and skull in particular.