US 12,217,539 B2
Estimation device, estimation method, and storage medium
Yusuke Morishita, Tokyo (JP)
Assigned to NEC CORPORATION, Tokyo (JP)
Filed by NEC Corporation, Tokyo (JP)
Filed on Feb. 25, 2022, as Appl. No. 17/680,853.
Application 17/680,853 is a continuation of application No. 17/278,500, previously published as PCT/JP2018/035785, filed on Sep. 26, 2018.
Prior Publication US 2022/0180556 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06V 40/16 (2022.01); G06T 7/73 (2017.01); G06V 10/25 (2022.01); G06V 40/18 (2022.01)
CPC G06V 40/171 (2022.01) [G06T 7/73 (2017.01); G06V 10/25 (2022.01); G06V 40/168 (2022.01); G06V 40/197 (2022.01); G06T 2207/30201 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An estimation device comprising:
at least one memory storing instructions; and
at least one processor configured to execute the instructions to:
generate a perturbation extraction region by adding a perturbation to an extraction region in a face image, the perturbation includes a parallel translation of the extraction region, the extraction region being determined based on positions of feature points extracted from the face image, a magnitude of the perturbation being based on an image quality of the face image;
estimate, based on a plurality of partial images including a first partial image and a second partial image, a plurality of directions and a reliability of each of the plurality of directions, the plurality of directions being a plurality of face directions or the plurality of directions of lines of sight, the first partial image being extracted from the extraction region in the face image, the second partial image being extracted from the perturbation extraction region in the face image; and
calculate an integrated direction obtained by integrating the plurality of directions based on the estimated reliability,
wherein the second partial image is generated by adding a second perturbation to an extracted partial image extracted from the perturbation extraction region in the face image, the second perturbation including enlargement of the extracted partial image, the extracted partial image being a third partial image and a fourth partial image.