Title:
Passenger detection device, passenger detection system and passenger detection method
Document Type and Number:
Japanese Patent JP6320661
Kind Code:
B2
Abstract:
A passenger detection device (10) includes a face image obtaining unit (12) obtaining a face image captured in a state in which a passenger in a vehicle irradiated with irradiation light from light sources. The device further includes: a reflected-image position detecting unit (14) detecting, from the face image, positions of respective reflected images of the light sources reflected on eyeglasses worn by the passenger; an eyeglasses feature detecting unit (15) detecting, from the face image, positions of center points of lenses as feature information of the eyeglasses; a head position detecting unit (16) detecting a head position of the passenger on the basis of the positions of respective reflected images; and a face orientation detecting unit (17) detecting face orientation of the passenger on the basis of relation between the head position of the passenger, the positions of respective reflected images, and the positions of center points of lenses.
Inventors:
Tahara Natsu
Takashi Hirano
Masanobu Osawa
Takashi Hirano
Masanobu Osawa
Application Number:
JP2017567895A
Publication Date:
May 09, 2018
Filing Date:
February 18, 2016
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
G06T1/00; G06T7/73; G06V10/60; G06V10/143
Domestic Patent References:
| JP200470514A | ||||
| JP2009245257A | ||||
| JP2008269182A | ||||
| JP2009517745A |
Attorney, Agent or Firm:
Hideaki Tazawa
Hamada Hatsune
Nakashima Shigeru
Tatsuya Sakamoto
Tsujioka Masaaki
Kazuma Inoue
Hamada Hatsune
Nakashima Shigeru
Tatsuya Sakamoto
Tsujioka Masaaki
Kazuma Inoue