Method and device for estimating pose of user

A head-mounted display (HMD) device comprising:

• at least two cameras;
• and
• a controller,
• wherein the controller is configured to:
• obtain at least two images from the at least two cameras, each of the obtained at least two images including a view of at least a portion of a body of a user wearing the HMD device,
• estimate a pose of the body of the user based on the view of the at least the portion of the body of the user included in each of the obtained at least two images,
• estimate a pose of a head of the user based on the obtained at least two images, and
• estimate a pose of the user based on the estimated pose of the body of the user and the estimated pose of the head of the user.

A non-transitory computer-readable storage medium storing instructions which, when executed by a controller of a head-mounted display (HMD) device, cause the HMD device to perform operations, the operations comprising:

• obtaining at least two images from at least two cameras of the HMD device, each of the obtained at least two images including a view of at least a portion of a body of a user wearing the HMD device;
• estimating a pose of the body of the user based on the view of the at least the portion of the body of the user included in each of the obtained at least two images;
• estimating a pose of a head of the user based on the obtained at least two images;
• and
• estimating the pose of the user based on the estimated pose of the body of the user and the estimated pose of the head of the user.