Fiducial rings in virtual reality

Patent metadata

Field	Value
Publication number	US-10088902-B2
Application number	US-201615340888-A
Country	US
Kind code	B2
Filing date	Nov 1, 2016
Priority date	Nov 1, 2016
Publication date	Oct 2, 2018
Grant date	Oct 2, 2018

Abstract

A virtual reality system enables a user to interact with virtual objects. The system includes a fiducial ring, an imaging device and a console. The fiducial ring includes a ring body that includes a plurality of fiducial markers that each correspond to a different location on the ring body. An imaging device is configured to capture one or more images of the fiducial ring. The console receives the images that include an image of one or more fiducial markers. Based on the received images of the fiducial markers, the console determines a location on the fiducial ring that corresponds to the imaged fiducial marker. The console determines a position of the fiducial ring based on the determined location of the fiducial marker on the fiducial ring. The console provides content to a head mounted display (HMD) based on the determined position of the fiducial ring.

First claim

What is claimed is:

1. A system comprising:
a fiducial ring including:
a ring body that includes a plurality of fiducial markers that each are positioned at different locations on the ring body and each are active devices emitting light, the ring body configured to fit on a portion of a user's finger;

an imaging device configured to capture one or more images of the fiducial ring by capturing the light emitted from at least one of the fiducial markers; and
a console comprising a processor and a memory coupled to the processor, the memory including instructions that, when executed by the processor, cause the processor to:
receive the one or more images from the imaging device, the one or more images including an image with a fiducial marker, of the plurality of fiducial markers,
determine a location on the fiducial ring that corresponds to the imaged fiducial marker,
determine a position of the fiducial ring based at least in part on the determined location of the fiducial marker on the fiducial ring, and
provide content to a head-mounted display (HMD) based on the determined position of the fiducial ring.

2. The system of claim 1 , wherein the fiducial ring further comprises a sensor coupled to the ring body, the sensor configured to determine a fine motor movement of the user's finger by sensing a motion on the fiducial ring coupled to the user's finger.

3. The system of claim 1 , wherein the fiducial ring further comprises a sensor configured to:
determine a force on the ring body, and
in response to the determination,
generate an information signal including a value of the force, and
transmit the information signal to the system.

4. The system of claim 3 , wherein the sensor detects a change in pressure on the sensor to determine the force applied on the ring body.

5. The system of claim 1 , wherein the fiducial marker is a stationary locatable active device.

6. The system of claim 1 , further comprising:
a haptic apparatus configured to receive a haptic feedback signal including an actuation signal and an amount of actuation; and
an actuation device coupled to the haptic apparatus, the actuation device configured to actuate the haptic apparatus to provide haptic feedback to a user wherein the haptic feedback is equal to the amount of actuation.

7. The system of claim 1 , wherein the plurality of fiducial markers are configured in unique combinations.

8. A system comprising:
a fiducial ring including:
a ring body that includes a plurality of fiducial markers that each are positioned at different locations on the ring body and each are active devices emitting light;

an imaging device configured to capture one or more images of the fiducial ring by capturing the light emitted from at least one of the fiducial markers; and
a console comprising a processor and a memory coupled to the processor, the memory including instructions that, when executed by the processor, cause the processor to:
receive the one or more images from the imaging device, the one or more images including an image with a fiducial marker, of the plurality of fiducial markers,
determine a location on the fiducial ring that corresponds to the imaged fiducial marker,
determine a position of the fiducial ring based at least in part on the determined location of the fiducial marker on the fiducial ring, and
provide content to a head-mounted display (HMD) based on the determined position of the fiducial ring.

9. The system of claim 8 , wherein the fiducial ring further comprises a sensor coupled to the ring body, the sensor configured to determine a movement of a portion of the user's body, and wherein the ring body is attached to the portion of the user's body.

10. The system of claim 8 , wherein the fiducial ring further comprises a sensor configured to:
determine a force on the ring body, and
in response to the determination,
generate an information signal including a value of the force, and
transmit the information signal to the system.

11. The system of claim 10 , wherein the sensor detects a change in pressure on the sensor to determine the force applied on the ring body.

12. The system of claim 8 , wherein the fiducial marker is a stationary locatable active device.

13. The system of claim 8 , further comprising:
a haptic apparatus configured to receive a haptic feedback signal including an actuation signal and an amount of actuation; and
an actuation device coupled to the haptic apparatus, the actuation device configured to actuate the haptic apparatus to provide haptic feedback to a user wherein the haptic feedback is equal to the amount of actuation.

14. The system of claim 8 , wherein the plurality of fiducial markers are configured in unique combinations.

15. A system comprising:
a fiducial ring including:
a ring body that includes a plurality of fiducial markers that each are positioned at different locations on the ring body and each are active devices emitting light, the ring body configured to fit on a portion of a user's finger;

an imaging device configured capture one or more images of the fiducial ring; and
a console configured to provide content to a head-mounted display (HMD) based in part on the one or more images of the fiducial ring.

16. The system of claim 15 , wherein the fiducial ring further comprises a sensor coupled to the ring body, the sensor configured to determine a fine motor movement of the user's finger by sensing a motion on the fiducial ring coupled to the user's finger.

17. The system of claim 15 , wherein the fiducial ring further comprises a sensor configured to:
determine a force on the ring body, and
in response to the determination,
generate an information signal including a value of the force, and
transmit the information signal to the system.

18. The system of claim 17 , wherein the sensor detects a change in pressure on the sensor to determine the force applied on the ring body.

Assignees

• Oculus Vr Llc

Inventors

• Keller Sean Jason
• Perek David R
• Trutna Tristan Thomas
• Ochs Garett Andrew
• Corson Nicholas Roy
• King Raymond

Classifications

• G09G5/003

  Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto (specific for a CRT G09G1/165; for a flat panel G09G3/2092) · CPC title

• G06F3/014 Primary

  Hand-worn input/output arrangements, e.g. data gloves · CPC title

• G06F3/017

  Gesture based interaction, e.g. based on a set of recognized hand gestures (interaction based on gestures traced on a digitiser G06F3/04883) · CPC title

• G06F3/016

  Input arrangements with force or tactile feedback as computer generated output to the user · CPC title

• G02B27/0172

  characterised by optical features · CPC title