@book{1d4b9d3bc64c4164abc0eb364dc01412,
title = "Experts vs. novices: Applying eye-tracking methodologies in colonoscopy video screening for polyp search",
abstract = "We present in this paper a novel study aiming at identifying the differences in visual search patterns between physicians of diverse levels of expertise during the screening of colonoscopy videos. Physicians were clustered into two groups -experts and novices- according to the number of procedures performed, and fixations were captured by an eye-tracker device during the task of polyp search in different video sequences. These fixations were integrated into heat maps, one for each cluster. The obtained maps were validated over a ground truth consisting of a mask of the polyp, and the comparison between experts and novices was performed by using metrics such as reaction time, dwelling time and energy concentration ratio. Experimental results show a statistically significant difference between experts and novices, and the obtained maps show to be a useful tool for the characterisation of the behaviour of each group.",
keywords = "Colonoscopy, Experts, Eye-tracking, Medical Imaging, Novices, Polyp, Saliency",
author = "Jorge Bernal and S{\'a}nchez, {F. Javier} and Fernando Vilari{\~n}o and Mirko Arnold and Anarta Ghosh and Gerard Lacey",
year = "2014",
doi = "10.1145/2578153.2578189",
language = "English",
isbn = "9781450327510",
series = "Eye Tracking Research and Applications Symposium (ETRA)",
}