| Summary: | <p>The thesis presented in this paper is an attempt to quantify generally preferred amounts
of virtual image sharpening in augmented reality applications. This preferred amount of
sharpening is sought after in an effort to alleviate eye fatigue, and other negative symptoms,
caused by accommodation switching between virtual images and real objects in augmented
reality (AR) systems. This is an important area of research within the AR world due to the
presence of many AR applications that supplement the real world with virtual information,
often in the form of virtual text for users to read. An experiment, involving human subjects
choosing between higher and lower sharpening amounts, was run to expose preferred
amounts of sharpening or patterns of chosen amounts in relation to a number of variables
within the experiment; those variables are: virtual text accommodative distance, real text
accommodative distance, and the object of focus (real or virtual). The results of this experimentation
may benefit future AR research and implementations, specifically in how they
handle users switching focus. </p>
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