CPC G06T 7/50 (2017.01) [G06T 7/70 (2017.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01); G06V 20/59 (2022.01); G06V 20/647 (2022.01); G06V 40/161 (2022.01); G06V 40/171 (2022.01); G06T 2207/20084 (2013.01); G06T 2207/30201 (2013.01)] | 8 Claims |
1. A face image processing device, comprising:
at least one processor configured to implement:
an image coordinate system coordinate value derivation unit configured to detect an x-coordinate value which is a horizontal coordinate value and a y-coordinate value which is a vertical coordinate value respectively in an image coordinate system at a feature point of an organ of a face of a person in an image acquired by imaging the face, and estimate a z-coordinate value which is a depth coordinate value in the image coordinate system, so as to derive three-dimensional coordinate values in the image coordinate system;
a camera coordinate system coordinate value derivation unit configured to derive three-dimensional coordinate values in a camera coordinate system from the three-dimensional coordinate values in the image coordinate system derived by the image coordinate system coordinate value derivation unit; and
a parameter derivation unit configured to apply the three-dimensional coordinate values in the camera coordinate system derived by the camera coordinate system coordinate value derivation unit to a predetermined three-dimensional face shape model to derive a model parameter of the three-dimensional face shape model in the camera coordinate system.
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