Patent Application
20180329483
This application claims the priority benefit of TW application serial No. 106115828, filed on May 12, 2017. The entirety of the above-mentioned patent application is hereby incorporated by references herein and made a part of specification.
The disclosure relates to a three-dimensional (3D) positioning system and a 3D positioning method.
Conventionally, an external device in the service environment is necessary for a virtual reality technology. The external device is configured for positioning a head-mounted display, a controller, and a user. For example, the external device is a laser scanning positioning device or an infrared camera.
According to an aspect of the disclosure, a 3D positioning system is provided. The3D positioning system, adapted for object tracking and positioning of virtual reality, the 3D positioning system comprises: at least a controller, wherein each of the controller includes at least a light-emitting component; a headset display device coupled with the controller, the headset display device including: an object tracking module including a first inertial measurement unit configured to detect first displacement information of the headset display device, and at least a digital camera configured to track a characteristic of the light-emitting component at the controller; and a host configured to adjust a virtual image corresponding to the virtual reality and transmit the adjusted virtual image to the headset display device to display.
According to an aspect of the disclosure, a 3D positioning method is provided. The 3D positioning method is adapted for object tracking and positioning of virtual reality. The 3D positioning method comprises: Tracking a characteristic of at least a light-emitting component at a controller; calculating relative displacement information between each of the controller and a headset display device according to the characteristic; detecting first displacement information of the headset display device and second displacement information of each of the controller; transmitting the relative displacement information, the first displacement information, and the second displacement information to the host; and adjusting a corresponding virtual image of the virtual reality according to the relative displacement information, the first displacement information, and the second displacement information and transmitting the adjusted virtual image to the headset display device to display via the host.
These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings. However, the invention is not limited to the embodiments.
The term “coupled” means that wireless or wired connection. In addition, the transmission interface includes a wired or wireless transmission interface.
A 3D positioning system 100 adapted for object tracking and positioning of virtual reality is provided.
The host 110 is connected with the headset display device 120 via a transmission interface. The host 110 is connected with the first controller 130 via a transmission interface. In an embodiment, the transmission interface is a cable, Bluetooth, wireless LAN, Worldwide Interoperability for Microwave Access (WiMAX) or Long Term Evaluation (LTE). The host 110 is hardware, such as a computer, a mobile device, or a computing device, which is not limited herein.
In an embodiment, the first light-emitting component 170 is a Light-emitting diode (LED), such as a far infrared LED, which is not limited herein.
In an embodiment, the first displacement information and the second displacement information at least include a rotation angle and a displacement direction. The relative displacement information at least includes a relative distance and a displacement direction.
The first inertial measurement unit 144 of the headset display device 120 detects the relative displacement information calculated by the processing unit 142 and the first displacement information of the headset display device 120. The first transmission unit 146 transmits the relative displacement information and the first displacement information to the host 110. The second inertial measurement unit 162 of the first controller 130 detects the second displacement information of the first controller 130. The microprocessor 160 of the first controller 130 transmits the second displacement information to the host 110 via the second transmission unit 166.
In the embodiment, the first controller 130 further includes at least a button unit 164. When the microprocessor 160 detects the button unit 164 is pressed, an enable signal is transmitted to make the first light-emitting component 170 light.
In an embodiment, the number of the controllers is more than one.
In an embodiment, the light-emitting components at the first controller 130, the second controller 132 and the third controller 134 have different brightness. Then, the object tracking module 140 identifies different controllers of the headset display device 120 according to the brightness.
In an embodiment, the object tracking module 140 includes a plurality of digital cameras.
In an embodiment, one controller includes a plurality of light-emitting components.
According to a 3D positioning system in embodiments, an object tracking module is configured at a headset display device worn on users. Then, a controller hold by users is tracked and positioned. Therefore, an external device for positioning a controller, a head-mounted display, and users in the environment does not need to be set up in advance. In addition, according to the 3D positioning system in embodiments, the object tracking module tracks a characteristic of the light-emitting component of the controller, and the relative displacement information between the headset display device and the controller. Then, the calculated result is transmitted to the host via a transmission interface. Since part of data calculating is finished in the headset display device, the data size transmitted to the host is reduced. As a result, the burden on the host is reduced.
Although the present invention has been described in considerable detail with reference to certain preferred embodiments thereof, the disclosure is not for limiting the scope of the invention. Persons having ordinary skill in the art may make various modifications and changes without departing from the scope. Therefore, the scope of the appended claims should not be limited to the description of the preferred embodiments described above.
| Number | Date | Country | Kind |
|---|---|---|---|
| 106115828 | May 2017 | TW | national |
