Patent ID: 11875529
Assignee: HINGE HEALTH, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A method for estimating three-dimensional (3D) positions of joints of a person through analysis of an image segment that contains the joints of the person, the method comprising:
obtaining a two-dimensional (2D) joint heatmap that indicates a 2D location of each of the joints included in the image segment;
applying the image segment and the 2D joint heatmap to a convolutional neural network that contains at least one 3D convolutional layer,
wherein at each 3D convolutional layer, 2D resolution is reduced while depth resolution is expanded to produce an estimated depth for each of the joints; and

for each of the joints,
combining the 2D location with the corresponding estimated depth to generate an estimated 3D position for that joint.