Understanding the Benefits of Gaze Enhanced Visual Search
Published in Symposium on Eye-Tracking Research & Applications (ETRA), 2010
Recommended citation: Qvarfordt, P., Biehl, J.T., Golovchinsky, G., & Dunningan, T. 2010. "Understanding the Benefits of Gaze Enhanced Visual Search." In Proceedings of the 2010 Symposium on Eye-Tracking Research & Applications (ETRA '10). ACM, New York, NY, USA, pp. 283-290.
In certain applications such as radiology and imagery analysis, it is important to minimize errors. In this paper we evaluate a structured inspection method that uses eye tracking information as a feedback mechanism to the image inspector. Our two-phase method starts with a free viewing phase during which gaze data is collected. During the next phase, we either segment the image, mask previously seen areas of the image, or combine the two techniques, and repeat the search. We compare the different methods proposed for the second search phase by evaluating the inspection method using true positive and false negative rates, and subjective workload. Results show that gaze-blocked configurations reduced the subjective workload, and that gaze-blocking without segmentation showed the largest increase in true positive identifications and the largest decrease in false negative identifications of previously unseen objects.