Helmer R, Grüner O
Z Rechtsmed. 1977 Nov 18;80(3):189-90. doi: 10.1007/BF02114614.
Skull identification by electronic photo-composition can, with the help of a video-animation compositor, be further developed beyond the pure superprojection technique into an animated picture difference image. The employment of this combined technique to be recommended on account of the improved possibilities of control to be realized in the congruity of the superprojection composite picture.