Date of Award
12-2007
Document Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Legacy Department
Computer Science
Committee Chair/Advisor
Duchowski, Andrew
Committee Member
Geist , Robert
Committee Member
Davis , Timothy
Committee Member
Tyrrell , Richard
Abstract
A non-isotropic hybrid image/model based gaze-contingent rendering technique utilizing ray casting on a GPU is discussed. Empirical evidence derived from human subject experiments indicates an inverse relationship between a peripherally degraded scene's high-resolution inset size and mean search time, a trend consistent with existing image-based and model-based techniques. In addition, the data suggest that maintaining a target's silhouette edges decreases search times when compared to targets with degraded edges. Benefits of the hybrid technique include simplicity of design and parallelizability, both conducive to GPU implementation.
Recommended Citation
Murphy, Hunter, "Hybrid Image/Model Based Gaze-Contingent Rendering" (2007). All Dissertations. 142.
https://open.clemson.edu/all_dissertations/142