TY - GEN
T1 - Screening enhancements
T2 - 52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008
AU - Ghylin, K. M.
AU - Schwaninger, A.
AU - Drury, C. G.
AU - Redford, J.
AU - Lin, L.
AU - Batta, R.
PY - 2008
Y1 - 2008
N2 - Data obtained utilizing image enhancements in a carry-on bag x-ray screening task were analyzed to determine whether and how image enhancements affect performance. To complement earlier studies of experienced screeners, sixty-six novices to the screening task used six different overall enhancements. Results indicated a significant worsening of performance, A', between Original images and Negative images, but no performance differences for the other enhancements, similar to effects found for experienced screeners. There was little overall performance learning taking place on the task. More detailed analysis by splitting response times into search and non-search components revealed little more enhancement effect, but a reduction in False Alarm response time as the task progressed. It appears that the locus of lack of positive effects of enhancements is not just a function of familiarity with the current screen view.
AB - Data obtained utilizing image enhancements in a carry-on bag x-ray screening task were analyzed to determine whether and how image enhancements affect performance. To complement earlier studies of experienced screeners, sixty-six novices to the screening task used six different overall enhancements. Results indicated a significant worsening of performance, A', between Original images and Negative images, but no performance differences for the other enhancements, similar to effects found for experienced screeners. There was little overall performance learning taking place on the task. More detailed analysis by splitting response times into search and non-search components revealed little more enhancement effect, but a reduction in False Alarm response time as the task progressed. It appears that the locus of lack of positive effects of enhancements is not just a function of familiarity with the current screen view.
UR - https://www.scopus.com/pages/publications/70350582722
M3 - Conference contribution
AN - SCOPUS:70350582722
SN - 9781605606859
T3 - Proceedings of the Human Factors and Ergonomics Society
SP - 353
EP - 357
BT - 52nd Human Factors and Ergonomics Society Annual Meeting, HFES 2008
Y2 - 22 September 2008 through 26 September 2008
ER -