The PedoWatch system was developed 2016 with the goal being to utilize fully autonomous software agent societies to scour DarkWeb resources for child abuse material. A central aspect of this system is to ferret out images and videos depicting child abuse (of all ages). The object recognition (detecting child heads) system is also deployed in GMS. As an example of how children heads are extracted from image and video material, the Classifier1 and Classifier2 may serve as examples (Warning: pictures may be graphic in nature).
For more information regrading the PedoWatch system see this post.