New findings on pupil response in gazing to flashed divided displays

Authors:
Shun'ichi Tano;Masaru Ogawa;Mitsuru Iwata;Tomonori Hashiyama
Affiliations:
University of Electro-Communication, Chofu, Tokyo, Japan;University of Electro-Communication, Chofu, Tokyo, Japan;University of Electro-Communication, Chofu, Tokyo, Japan;University of Electro-Communication, Chofu, Tokyo, Japan
Venue:
CHI '06 Extended Abstracts on Human Factors in Computing Systems
Year:
2006

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Abstract

We show that the pupil responds to the small area being gazed when it is flashed. The experiments revealed that the pupil reacts to the brightness of the small area being gazed at. Surprisingly, the resolution is 1.6 degrees at the viewing angle. This is equivalent to the spatial resolution of a 21 x 16 mm area at a distance of 60 cm. Finally, the feasibility of the new findings is demonstrated by applying it to character input.