Gaze2Segment: A Pilot Study for Integrating Eye-Tracking Technology into Medical Image Segmentation
In this study, we developed a novel system, called Gaze2Segment, integrating biological and computer vision techniques to support radiologists’ reading experience with an automatic image segmentation task. During diagnostic assessment of lung CT scans, the radiologists’ gaze information were used to create a visual attention map. Next, this map was combined with a computer-derived saliency map, extracted from the gray-scale CT images. The visual attention map was used as an input for indicating roughly the location of a region of interest. With computer-derived saliency information, on the other hand, we aimed at finding foreground and background cues for the object of interest found in the previous step. These cues are used to initiate a seed-based delineation process. The proposed Gaze2Segment achieved a dice similarity coefficient of 86% and Hausdorff distance of 1.45 mm as a segmentation accuracy. To the best of our knowledge, Gaze2Segment is the first true integration of eye-tracking technology into a medical image segmentation task without the need for any further user-interaction.
KeywordsEye tracking Local saliency Human computer interface Medical image segmentation Visual attention
- 6.von Helmholtz, H., Southall, J.P.C.: Treatise on physiological optics, vol. 3. Courier Corporation (2005)Google Scholar
- 8.Mallett, S., Phillips, P., Fanshawe, T.R., Helbren, E., Boone, D., Gale, A., Taylor, S.A., Manning, D., Altman, D.G., Halligan, S.: Tracking eye gaze during interpretation of endoluminal three-dimensional CT colonography: visual perception of experienced and inexperienced readers. Radiology 273(3), 783–792 (2014)CrossRefGoogle Scholar
- 9.McAuliffe, M.J., Lalonde, F.M., McGarry, D., Gandler, W., Csaky, K., Trus, B.L.: Medical image processing, analysis and visualization in clinical research. In: 14th IEEE Symposium on Computer-Based Medical Systems (CBMS 2001), Proceedings, pp. 381–386. IEEE (2001)Google Scholar
- 10.Sadeghi, M., Tien, G., Hamarneh, G., Atkins, M.S.: Hands-free interactive image segmentation using eyegaze. In: SPIE Medical Imaging, p. 72601H. International Society for Optics and Photonics (2009)Google Scholar