Patent ID: 9486156
Filing Date: 2016-11-08
CPC Classification: A61B

Claim Text:
1. An eye fatigue determination apparatus comprising: a video content obtainment unit configured to obtain video content; a measurement schedule determination unit configured to, from the video content obtained by the video content obtainment unit, determine an electrooculogram measurement time section in each of a first time section and a second time section during display of the video content, and determine an impedance measurement time section in each of the first time section and the second time section based on the determined electrooculogram measurement time section, the electrooculogram measurement time section being a time section for measuring an electrooculogram, and the impedance measurement time section being a time section for measuring an impedance; an electrooculogram obtainment unit configured to obtain the electrooculogram indicating a potential measured using an electrode placed near an eye of a viewer who is viewing the video content, the electrooculogram being measured in each of the first time section and the second time section which are determined by the measurement schedule determination unit; an impedance obtainment unit configured to obtain the impedance between the electrode and the viewer's skin at a position where the electrode is placed, the impedance being measured in each of the first time section and the second time section which are determined by the measurement schedule determination unit; an electrooculogram correction unit configured to correct the electrooculogram measured in the first time section based on the impedance measured in the first time section, and correct the electrooculogram measured in the second time section based on the impedance measured in the second time section; and a fatigue determination unit configured to determine fatigue of the viewer's eye, by comparing the electrooculogram measured in the first time section and corrected by the electrooculogram correction unit and the electrooculogram measured in the second time section and corrected by the electrooculogram correction unit, wherein the measurement schedule determination unit is configured to determine the first time section and the second time section according to a movement amount of an object in the video content, the movement amount of the object in the video content included in the first time section and the movement amount of the object in the video content included in the second time section being equal to each other.