Device and method for calculating swinging direction of human face in obscured human face image

A device for calculating a swinging direction of a human face in an obscured human face image, the device comprising:

• an image capturing device;
• a storage medium storing a three-dimensional model;
• and
• a processor coupled to the image capturing device and the storage medium, wherein the processor is configured to:
• capture an obscured human face image comprising a human face through the image capturing device;
• use non-obscured face detection technology to obtain a feature anchor point to be replaced in the obscured human face image, use obscured face detection technology to obtain a plurality of candidate feature anchor points in the obscured human face image, and use the plurality of candidate feature anchor points to determine an updated feature anchor point corresponding to the feature anchor point to be replaced;
• perform an adjustment operation on a three-dimensional model to obtain an adjusted three-dimensional model;
• and
• use the updated feature anchor point and the adjusted three-dimensional model to calculate a swinging direction of the human face.