| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pupil detection device and a pupil detection method capable of improving pupil detection accuracy even when a detection target image is in low resolution. <P>SOLUTION: In a pupil detection device 100, an eye area actual dimension calculation unit 102 obtains an actual scale value of an eye area; a pupil state prediction unit 103 calculates an actual scale prediction value of a pupil diameter; a necessary resolution estimation unit 105 calculates a target value of resolution on the basis of the calculated actual scale prediction value; an eye area image normalization unit 107 calculates a magnification/reduction scaling factor on the basis of the calculated target value of the resolution and the calculated actual scale value of the eye area, and normalizes an eye area image on the basis of the calculated magnification/reduction scaling factor; and a pupil detection unit 108 detects a pupil image in the normalized eye area image. <P>COPYRIGHT: (C)2012,JPO&INPIT |
