05967153

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05967153 Liu, Xi Gale, Alastair Air passengers' luggage screening: what is the difference between na{\"\i}ve people and airport screeners? Harris, Don (ed.), Engineering psychology and cognitive ergonomics. 9th international conference, EPCE 2011, held as Part of HCI international 2011, Orlando, FL, USA, July 9--14, 2011. Proceedings. Berlin: Springer (ISBN 978-3-642-21740-1/pbk). Lecture Notes in Computer Science 6781. Lecture Notes in Artificial Intelligence, 424-431 (2011). 2011 Berlin: Springer EN X-ray luggage image visual search fixation map

doi:10.1007/978-3-642-21741-8_45

Summary: In a simulated task of airport security inspection for threat items of knives, guns and IEDs, the difference between screeners and na{\"\i}ve people was analysed in terms of detection performance, attention allocation and workload. The detection performance of screeners was significantly better than that of na{\"\i}ve people. Compared to na{\"\i}ve observers, screeners concentrated on one or two potential threat items and ignored some irrelevant contents in the X-ray images which are showed by fixation maps. In order to understand how observers missed targets the workload between hit and miss decisions was compared. Unfortunately, there was no difference on workload when they hit or missed the targets where the dwell time on the targets of the hit decisions was longer than that of miss decisions. The findings may highlight how the search expertise is developed and provide information for improving training program.