By Brian Pickering, Electronics and Computer Science, University of Southampton, Southampton. SO17 1BJ., UK | Igor Paulussen, Philips Research, Eindhoven (NL), Department of Anaesthesiology, Resuscitation and Pain Management, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands, i.paulussen@etz.nl | Gerrit Jan Noordergraaf, Department of Anaesthesiology, Resuscitation and Pain Management, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands | Roland Roller, German Research Center for Artificial Intelligence (DFKI), Berlin, Germany | Holmer Hemsen, German Research Center for Artificial Intelligence (DFKI), Berlin, Germany | Alyssa Venema, Department of Anaesthesiology, Resuscitation and Pain Management, Elisabeth-TweeSteden Hospital, Tilburg, The Netherlands