US 11,983,896 B2
Line-of-sight detection apparatus and line-of-sight detection method
Atsushi Matsumoto, Tokyo (JP); Hirotaka Sakamoto, Tokyo (JP); and Shusaku Takamoto, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 17/282,478
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Oct. 9, 2018, PCT No. PCT/JP2018/037529
§ 371(c)(1), (2) Date Apr. 2, 2021,
PCT Pub. No. WO2020/075215, PCT Pub. Date Apr. 16, 2020.
Prior Publication US 2021/0383566 A1, Dec. 9, 2021
Int. Cl. G06V 40/18 (2022.01); G06T 7/73 (2017.01); G06V 20/59 (2022.01); G06V 40/16 (2022.01)
CPC G06T 7/73 (2017.01) [G06V 20/597 (2022.01); G06V 40/161 (2022.01); G06V 40/171 (2022.01); G06V 40/18 (2022.01); G06T 2207/30201 (2013.01); G06T 2207/30268 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A line-of-sight detection apparatus comprising:
estimation target selection circuitry to select an eye to be a line-of-sight estimation target of a line-of-sight detection target person as one line-of-sight detection mode in a plurality of switchable line-of-sight detection modes;
line-of-sight estimation circuitry to estimate a line of sight of the line-of-sight detection target person in the one line-of-sight detection mode;
reliability determination circuitry to determine, based on a first line of sight that is the line of sight before the line-of-sight detection mode is switched by selection of the estimation target selection circuitry and a second line of sight that is the line of sight after the line-of-sight detection mode is switched, reliability of the second line of sight after the line-of-sight detection mode is switched; and
line-of-sight direction output circuitry to output information on the second line of sight and the reliability of the second line of sight.