Deep Gaze Velocity Analysis During Mammographic Reading for Biometric Identification of Radiologists

Journal Article · Wed Jan 24 00:00:00 EST 2018 · Journal of Human Performance in Extreme Environments

DOI:https://doi.org/10.7771/2327-2937.1088· OSTI ID:1422583

Yoon, Hong-Jun ^[1]; Alamudun, Folami T. ^[1]; Hudson, Kathy ^[2]; Morin-Ducote, Garnetta ^[2]; Tourassi, Georgia ^[1]

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1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biomedical Sciences, Engineering, and Computing Group Health Data Sciences Institute
2. University of Tennessee Graduate School of Medicine, Knoxville, TN (United States). Department of Radiology

Several studies have confirmed that the gaze velocity of the human eye can be utilized as a behavioral biometric or personalized biomarker. In this study, we leverage the local feature representation capacity of convolutional neural networks (CNNs) for eye gaze velocity analysis as the basis for biometric identification of radiologists performing breast cancer screening. Using gaze data collected from 10 radiologists reading 100 mammograms of various diagnoses, we compared the performance of a CNN-based classification algorithm with two deep learning classifiers, deep neural network and deep belief network, and a previously presented hidden Markov model classifier. The study showed that the CNN classifier is superior compared to alternative classification methods based on macro F1-scores derived from 10-fold cross-validation experiments. Our results further support the efficacy of eye gaze velocity as a biometric identifier of medical imaging experts.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF)
• Sponsoring Organization: USDOE Office of Science (SC)
• Grant/Contract Number: AC05-00OR22725
• OSTI ID: 1422583
• Journal Information: Journal of Human Performance in Extreme Environments, Journal Name: Journal of Human Performance in Extreme Environments Journal Issue: 1 Vol. 14; ISSN 2327-2937
• Country of Publication: United States
• Language: English

Related Subjects

59 BASIC BIOLOGICAL SCIENCES
60 APPLIED LIFE SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
convolutional neural networks
deep learning
eye tracking
gaze velocity