US 12,307,024 B2
Tracking system and tracking method
Chien-Min Wu, Taoyuan (TW); and YuHui Hsu, Taoyuan (TW)
Assigned to HTC Corporation, Taoyuan (TW)
Filed by HTC Corporation, Taoyuan (TW)
Filed on Jul. 27, 2023, as Appl. No. 18/359,882.
Claims priority of provisional application 63/392,496, filed on Jul. 27, 2022.
Prior Publication US 2024/0036656 A1, Feb. 1, 2024
Int. Cl. G06F 3/03 (2006.01); G06F 3/01 (2006.01); G06T 7/20 (2017.01); G06T 7/70 (2017.01)
CPC G06F 3/0304 (2013.01) [G06F 3/011 (2013.01); G06T 7/20 (2013.01); G06T 7/70 (2017.01); G06T 2207/30196 (2013.01); G06T 2207/30244 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A tracking system, comprising:
a three degree-of-freedom (3DoF) device, adapted to be mounted on a control device worn or hold on a body portion of a user, wherein the 3DoF device is configured to obtain sensor data from a 3DoF sensor of the 3DoF device;
a camera, configured to obtain camera data, wherein the camera data comprises an image of the body portion of the user or the control device as a tracking target; and
a processor, configured to:
track the tracking target to generate a tracking result based on the sensor data and the camera data;
determine the tracking target being static or not based on the tracking result;
determine a target pose of the tracking target based on the tracking result; and
in response to the tracking target being static and the target pose being a calibration pose, calibrate an accumulative error of the 3DoF sensor in background.