TABLE 5.

Comparison of the results of eye-tracking metrics of the benchmark (Raw60), Tobii Fixation Filter (Default) and three Test filters with velocity thresholds 5, 10, and 15°/s (Test filters 1, 2, and 3, respectively).

	Raw60	Default Merge Discard 30°/s	Difference (Raw60 -Default)	Test filter1 NoMerge NoDiscard 5°/sec	Difference (Raw60 – Testfilter1)	Test filter2 NoMerge NoDiscard 10°/s	Difference (Raw60 –Testfilter2)	Test filter2 NoMerge NoDiscard 15(/sec	Difference (Raw60 — Testfilter3)
TFD	0.227	0.188	–0.039 (–17%)	0.123	–0.104 (–46%)	0.16	–0.067 (–30%)	0.174	-0.053 (-23%)
TTFF	0.565	0.904	0.339 (60%)	0.874	0.309 (55%)	0.811	0.246 (44%)	0.831	0.266 (47%)
Percent Seen	0.495	0.371	–0.124 (–25%)	0.429	–0.066 (–13%)	0.437	–0.058 (–12%)	0.441	–0.054 (–11%)