Eye Tracking Observers During Rank Order, Paired Comparison, and Graphical Rating Tasks

In studying image quality and image preference it is necessary to collect psychophysical data. A variety of methods are used to arrive at interval scale values which indicate the relative quality of images within a sample set. The choice of psychophysical technique is based on a number of criteria, including the confusion of the sample set, the number of samples to be used, and attempts to minimize observer effort. There is an implicit assumption that the final result does not depend on the particular method selected. However, it may be the case that viewers adopt different strategies based on experimental methods. Task-dependent eye movements may be a source of variability when comparing results across different psychometric scaling tasks. This research focuses on learning where people center their attention during color preference judgments and examines the differences between paired comparison, rank order, and graphical rating tasks.

• Type: Conference
• Year: 2003
• Where: PICS
• Authors: Jason S. Babcock, Jeff B. Pelz, Mark D. Fairchild
• Keywords: Image Preference, Image Processing, Interval Scale Values, PICS 2003, Sample Set