Tracking System and Tacking Method Using the Same

• US 20200089311A1
• Filed: 09/19/2018
• Published: 03/19/2020
• Est. Priority Date: 09/19/2018
• Status: Active Grant

• Current Assignee: XRSPACE Co., Ltd.
• Original Assignee: XRSPACE Co., Ltd.
• Inventors: Chou, Peter, Lin, Chun-Wei, Hsieh, Yi-Kang, Wu, Chia-Wei
• Granted Patent: US 10,817,047 B2
• Time in Patent Office: Days
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G06F 3/011 Arrangements for interaction with the human body, e.g. for user immersion in virtual reality blind teaching G09B21/00
• CPC Class Codes: G06F 3/012 Head tracking input arrangements
• CPC Class Codes: G06F 3/017 Gesture based interaction, e.g. based on a set of recognized hand gestures interaction based on gestures traced on a digitiser G06F3/04883
• CPC Class Codes: G06F 3/0334 Foot operated pointing devices

Abstract

A tracking system is disclosed. The tracking system comprises a head-mounted display (HMD) worn on a head of a user and configured to virtualize a body movement of the user in a virtual environment; and a plurality of sensors worn on feet of the user configured to determine body information of the user according to the body movement of the user, and transmit the determined body information to the HMD; wherein the HMD virtualizes the body movement of the user according to the determined body information; wherein the body information is related to a plurality of mutual relationships between the plurality of sensors and the HMD.

Claims

1. A tracking system, comprising:

a head-mounted display (HMD) worn on a head of a user and configured to virtualize a body movement of the user in a virtual environment; and

a plurality of sensors worn on feet of the user configured to determine body information of the user according to the body movement of the user, and transmit the determined body information to the HMD, each of the plurality of sensors being connected to the HMD via a first connection, the plurality of sensors being connected to each other via a second connection, a plurality of mutual relationships between the plurality of sensors and the HMD being acquainted, each of the plurality of sensors comprising an inertial measurement unit to simulate a coordinate, the coordinate of each of the plurality of sensors being shared to each other via the second connection and shared to the HMD via the first connection for calibrating the plurality of mutual relationships between the plurality of sensors and the HMD;

wherein the HMD virtualizes the body movement of the user according to the determined body information;

wherein the body information is related to the plurality of mutual relationships between the plurality of sensors and the HMD.

2. The tracking system of claim 1, wherein the plurality of sensors comprise a first sensor and a second sensor, the first sensor comprises a first inertial measurement unit (IMU) to simulate a first coordinate of the first sensor, and the second sensor comprises a second IMU to simulate a second coordinate of the second sensor.

3. The tracking system of claim 2, wherein the plurality of mutual relationships comprise a plurality of distances between the first sensor, the second sensor and the HMD, and relative locations between the first sensor, the second sensor and the HMD.

4. The tracking system of claim 2, wherein the first coordinate of the first sensor and the second coordinate of the second sensor are shared to each other and the HMD.

5. The tracking system of claim 1, wherein the HMD is connected to the plurality of sensors via Bluetooth.

6. The tracking system of claim 1, wherein the plurality of sensors are six degrees-of-freedom (DOF) sensors.

7. The tracking system of claim 1, wherein the plurality of sensors are connected with each other via ultrasonic, laser, or magnetic force.

8. A tracking method, for a head-mounted display (HMD) system, wherein the HMD virtualizes a body movement of a user in a virtual environment, the tracking method comprising:

determining, by a plurality of sensors, the body information of the user according to the body movement of the user; and

transmitting, by the plurality of sensors, the determined body information to the HMD;

wherein the HMD virtualizes the body movement of the user according to the determined body information;

wherein the body information is related to a plurality of mutual relationships between the plurality of sensors and the HMD;

wherein the HMD is worn on a head of the user and the plurality of sensors are worn on feet of the user, each of the plurality of sensors are connected to the HMD via a first connection, the plurality of sensors are connected to each other via a second connection, a plurality of mutual relationships between the plurality of sensors and the HMD are acquainted, each of the plurality of sensors comprises an inertial measurement unit to simulate a coordinate, the coordinate of each of the plurality of sensors is shared to each other via the second connection and shared to the HMD via the first connection for calibrating the plurality of mutual relationships between the plurality of sensors and the HMD.

9. The tracking method of claim 8, wherein the plurality of sensors comprise a first sensor and a second sensor, and the first sensor comprises a first inertial measurement unit (IMU) to simulate a first coordinate of the first sensor, and the second sensor comprises a second IMU to simulate a second coordinate of the second sensor.

10. The tracking method of claim 9, wherein the plurality of mutual relationships are a plurality of distances between the first sensor, the second sensor and the HMD, and relative locations between the first sensor, the second sensor and the HMD.

11. The tracking method of claim 9, wherein the first coordinate of the first sensor and the second coordinate of the second sensor are shared to each other and the HMD.

12. The tracking method of claim 8, wherein the HMD is connected to the plurality of sensors via Bluetooth.

13. The tracking method of claim 8, wherein the plurality of sensors are six degrees-of-freedom (DOF) sensors.

14. The tracking method of claim 8, wherein the plurality of sensors are connected with each other via ultrasonic, laser, or magnetic force.