Patent ID: 9672422
Date: 2017-06-06
CPC Classifications: A61B,G06K,G06T,H04N

Claim:
1. A pupil detection device comprising: an identification unit that is configured to calculate and to identify a pupil region and a corneal reflection region from a captured image of an eye; an extractor that is configured to extract a contour of the pupil region identified by the identification unit; a selector that is configured to select a plurality of points on the contour of the pupil region extracted by the extractor; a center calculator is configured to calculate a center of a circle passing through the plurality of points selected by the selector; and a pupil detector that is configured to detect a center of the pupil region from the center of a circle calculated by the center calculator, wherein the extractor is further configured to delete a predetermined part of the corneal reflection region from the contour of the pupil region extracted, and the selector is further configured to select the plurality of points on the contour of the pupil region from which the predetermined part of the corneal reflection region has been deleted.