Title:
集中度の推定装置
Document Type and Number:
Japanese Patent JP6560137
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an estimation device for estimating a concentration degree of a viewer of an image in a TV conference system.SOLUTION: The estimation device includes measurement means for measuring the quantity of oxygenation hemoglobin in a brain blood flow of a person, acquisition means for acquiring line-of-sight information on the person indicating a line-of-sight direction, determination means for dividing a video into blocks and determining a degree of change of an image of each block over a predetermined period, first calculation means for determining a block viewed by the person in a determination period of the predetermined period or longer on the basis of the line-of-sight information, and calculating a gaze score on the basis of the determined degree of change of the block, second calculation means for calculating an activation score on the basis of the quantity of oxygenation hemoglobin of the person in the determination period, and third calculation means for calculating a concentration degree score indicating a concentration degree of the person on the basis of the gaze score and the activation score.SELECTED DRAWING: Figure 2
Inventors:
Yoshino Toshinobu
Application Number:
JP2016022192A
Publication Date:
August 14, 2019
Filing Date:
February 08, 2016
Export Citation:
Assignee:
KDDI CORPORATION
International Classes:
A61B5/16; A61B5/026; A61B5/1455; G06T7/40
Domestic Patent References:
| JP2000348189A | ||||
| JP2014191474A | ||||
| JP2011081761A | ||||
| JP2007202882A |
Foreign References:
| WO2012150657A1 | ||||
| WO2012105196A1 | ||||
| US20140347265 | ||||
| WO2013186911A1 |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Takashi Sakamoto
Koji Maeda
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Osamu Shimoyama
Nagakawa Yukimitsu
Takashi Sakamoto
Koji Maeda