Hand calibration using single depth camera

A method, comprising, by a circuitry:

• generating input hand shape models of a user's hand using image data generated by a camera, the image data including multiple views of the user's hand, each input hand shape model defining a hand size of the user determined from one of the multiple views;
• determining a user hand shape model by fitting the input hand shape models to a set of principal component hand shape models, the principal component hand shape models defining orthogonal dimensions of hand size variance with respect to each other such that the set of principal component hand shape models defines a hand size variation space;
• rendering an image of the user's hand using the user hand shape model;
• and
• providing the image of the user's hand to a display device.

A non-transitory computer readable medium comprising stored instructions that, when executed by at least one processor, configure the at least one processor to:

• generate input hand shape models of the user's hand using the image data, each input hand shape model defining a hand size of the user determined from one of the multiple views;
• determine a user hand shape model by fitting the input hand shape models to a set of principal component hand shape models, the principal component hand shape models defining orthogonal dimensions of hand size variance with respect to each other such that the set of principal component hand shape models defines a hand size variation space;
• render an image of the user's hand using the user hand shape model;
• and
• provide the image of the user's hand to a display device.