Through years of experience, expert image analysts acquire knowledge which allows them to perform an in-depth analysis of images quickly and efficiently. This research aims to build a humanlike framework and cognitive model of visual analysis based on the tacit visual knowledge of expert image analysts in medicine. Gaze tracking is used to discover the cognitive processes of radiologic technologists during their evaluation of x-ray scans. The resulting gaze patterns can be used to create visual routines which extract meaningful information from low-level image features and make them available to high-level cognitive processes. This method achieves a functional prototype of visual analysis within the biological, computational and memory limitations of the human visual system. The routines from this framework can be used to understand expert cognition, train new analysts, perform automated analysis, and potentially provide an informatics tool for medical error prevention.
|Commitee:||Arthur, Gerald, Erdelez, Sandra, Korkin, Dmitry, Shyu, Chi-Ren|
|School:||University of Missouri - Columbia|
|School Location:||United States -- Missouri|
|Source:||MAI 58/04M(E), Masters Abstracts International|
|Keywords:||ACT-R, Cognitive model, Gaze tracking, Medical images, Visual knowledge, Visual routine|
Copyright in each Dissertation and Thesis is retained by the author. All Rights Reserved
The supplemental file or files you are about to download were provided to ProQuest by the author as part of a
dissertation or thesis. The supplemental files are provided "AS IS" without warranty. ProQuest is not responsible for the
content, format or impact on the supplemental file(s) on our system. in some cases, the file type may be unknown or
may be a .exe file. We recommend caution as you open such files.
Copyright of the original materials contained in the supplemental file is retained by the author and your access to the
supplemental files is subject to the ProQuest Terms and Conditions of use.
Depending on the size of the file(s) you are downloading, the system may take some time to download them. Please be