Fig. 2From: Autism risk classification using placental chorionic surface vascular network featuresThe process of obtaining a feature vector for each placenta. a A digital photograph of the placental chorionic surface vascular network (PCSVN) from the NCS data set. b Traced PCSVN for the image in (a) following the tracing protocols in [14]. c The skeletonisation of the traced PCSVN image in (b) that was produced by a MATLAB program written in house by the research team. d Numerical values of PCSVN features computed by our MATLAB program for the image in (c). Each of the 290 placentas in our data set is associated with a list of values similar to those given in (d)Back to article page