Abstract: A method of creating a three dimensional model of a unique body is provided, said method comprising obtaining a three dimensional model of a standard body and obtaining a two dimensional image of the unique body that is to be modelled. The method further comprises determining a location of the unique body in said image and determining a position of the unique body in said image, using the determined location and position data to extract a two dimensional outline of the unique body from the two dimensional image. The method further comprises selecting a measurement for which a value is to be calculated for the unique body, calculating a value of said selected measurement from the extracted two dimensional outline, using said calculated value of the selected measurement to update a corresponding measurement on the three dimensional model of a standard body, and outputting the updated three dimensional model of a standard body as a three dimensional model of the unique body.