Passive multi-wearable-devices tracking
At a first time point, a first light capturing device at a first spatial location in a three-dimensional (3D) space captures first light rays from light sources located at designated spatial locations on a viewer device in the 3D space. At the first time point, a second light capturing device at a second spatial location in the 3D space captures second light rays from the light sources located at the designated spatial locations on the viewer device in the 3D space. Based on the first light rays captured by the first light capturing device and the second light rays captured by the second light capturing device, at least one of a spatial position and a spatial direction, at the first time point, of the viewer device is determined.
1. A method, comprising:
determining spatial relationships between a wearable device and a three-dimensional (3D) space using light rays from two or more light sources installed at two or more designated spatial locations on the wearable device;
performing, based at least in part on the spatial relationships between the wearable device and the 3D space, spatial transformations on image content of device display images to generate transformed device display images;
causing the transformed device display images to be rendered on a device display of the wearable device.
2. The method of claim 1 , wherein the transformed device display images represent 3D image content.
3. The method of claim 1 , wherein the light rays from the two or more light sources installed at the two or more designated spatial locations on the wearable device are tracked by one or more light ray trackers outside the wearable device.
4. The method of claim 1 , wherein the transformed device display images as rendered on the wearable device is adapted specifically for at least one of a spatial location and a spatial direction of the wearable device as determined based on the light rays captured by one or more light capturing devices.
5. The method of claim 1 , wherein the two or more light sources include a light source representing one of: a light emitter, a light emitting diode, a non-LED light, a light regenerator, a light reflector, a light scattering device, or a retroreflector; wherein the light source is installed at a designated location on the wearable device.
6. The method of claim 1 , wherein at least a part of the light rays is reflected from a light reflector on the wearable device.
7. The method of claim 1 , wherein each of the two or more designated spatial locations on the wearable device is spatially fixed on the wearable device.
8. The method of claim 1 , wherein the light rays comprise a digitally coded light signal.
9. The method of claim 1 , wherein the light rays represent invisible light imperceptible to a human observer.
10. The method of claim 1 , where the wearable device moves with up to six degrees of freedom.
11. A non-transitory computer readable storage medium, storing software instructions, which when executed by one or more processors, cause the one or more processors to perform:
determining spatial relationships between a wearable device and a three-dimensional (3D) space using light rays from two or more light sources installed at two or more designated spatial locations on the wearable device;
performing, based at least in part on the spatial relationships between the wearable device and the 3D space, spatial transformations on image content of device display images to generate transformed device display images;
causing the transformed device display images to be rendered on a device display of the wearable device.
12. The medium of claim 11 , wherein the transformed device display images represent 3D image content.
13. The medium of claim 11 , wherein the light rays emitted from the two or more light sources installed at the two or more designated spatial locations on the wearable device are tracked by one or more light ray trackers outside the wearable device.
14. The medium of claim 11 , wherein the transformed device display images as rendered on the wearable device is adapted specifically for at least one of a spatial location and a spatial direction of the wearable device as determined based on the light rays captured by one or more light capturing devices.
15. The medium of claim 11 , where the wearable device moves with up to six degrees of freedom.
16. A computing device comprising one or more processors and one or more storage media, storing a set of instructions, which when executed by the one or more processors, cause the one or more processors to perform:
determining spatial relationships between a wearable device and a three-dimensional (3D) space using light rays from two or more light sources installed at two or more designated spatial locations on the wearable device;
performing, based at least in part on the spatial relationships between the wearable device and the 3D space, spatial transformations on image content of device display images to generate transformed device display images;
causing the transformed device display images to be rendered on a device display of the wearable device.
17. The device of claim 16 , wherein the transformed device display images represent 3D image content.
18. The device of claim 16 , wherein the light rays emitted from the two or more light sources installed at the two or more designated spatial locations on the wearable device are tracked by one or more light ray trackers outside the wearable device.
19. The device of claim 16 , wherein the transformed device display images as rendered on the wearable device is adapted specifically for at least one of a spatial location and a spatial direction of the wearable device as determined based on the light rays captured by one or more light capturing devices.
20. The device of claim 16 , where the wearable device moves with up to six degrees of freedom.