Title:
LINE-OF-SIGHT DETECTION DEVICE, LINE-OF-SIGHT DETECTION METHOD, AND LINE-OF-SIGHT DETECTION PROGRAM
Document Type and Number:
Japanese Patent JP2018025987
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To precisely detect a line of sight of a person who is wearing glasses with a simple configuration.SOLUTION: A candidate extraction part extracts a candidate of reflection of the cornea from a first image and a second image in which an image including person's eyes come out. A reference point extraction part extracts a reference point in a person from the first image and the second image. A threshold vector calculation part calculates a threshold vector with a candidate position overlapping with a position of a candidate of the reflection of the cornea of the first image in the second image as a start point, based on a motion vector in a reference point with a position overlapping with a position of the reference point of the first image in the second image as a start point and with a reference point in the second image as an ending point, and a predetermined threshold. A cornea reflection identification part calculates a motion vector in a reflection position with a candidate position in the second image as a start point and with a position of a candidate of the reflection of the cornea extracted from a second image as an ending point, and locates the position of the reflection of the cornea from among a plurality of cornea reflection candidates in the second image, based on the threshold vector and the motion vector in the reflection position.SELECTED DRAWING: Figure 3
Inventors:
TOMIMORI HIDEKI
NAKAJIMA SATORU
NAKAJIMA SATORU
Application Number:
JP2016157681A
Publication Date:
February 15, 2018
Filing Date:
August 10, 2016
Export Citation:
Assignee:
FUJITSU LTD
International Classes:
G06T7/60; G06T1/00
Domestic Patent References:
| JP2017079883A | 2017-05-18 | |||
| JP2014067090A | 2014-04-17 | |||
| JP2016095584A | 2016-05-26 |
Foreign References:
| WO2010035472A1 | 2010-04-01 |
Attorney, Agent or Firm:
Yoshiyuki Osuga
virtue Tamio Ei
virtue Tamio Ei
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