IP Library Granted Patent US 12,081,721
Granted Patent B2
US 12,081,721 · App. 17/807,508 · Granted Sep 3, 2024

Multi-baseline camera array system architectures for depth augmentation in VR/AR applications

Inventors: Kartik Venkataraman (San Jose, CA); Dan Lelescu (Morgan Hill, CA); Jacques Duparre (Jena, DE)
Assignee: Adeia Imaging LLC
H04N13/128G01C11/06G02B27/017G02B27/0172G06T7/593H04N13/243H04N13/271H04N23/45H04N23/90G02B2027/0136G02B2027/0138G02B2027/014G06T2207/10012G06T2207/10028G06T2207/20016H04N5/2226H04N2013/0081H04N23/11H04N23/56
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Quick Facts
Patent No.
US 12,081,721
App. No.
17/807,508
Granted
Sep 3, 2024
Kind
B2
Abstract

Embodiments of the invention provide a camera array imaging architecture that computes depth maps for objects within a scene captured by the cameras, and use a near-field sub-array of cameras to compute depth to near-field objects and a far-field sub-array of cameras to compute depth to far-field objects. In particular, a baseline distance between cameras in the near-field subarray is less than a baseline distance between cameras in the far-field sub-array in order to increase the accuracy of the depth map. Some embodiments provide an illumination near-IR light source for use in computing depth maps.

Claims (53)

1. A headset, comprising:

at least one display configured to display images;

a camera array comprising a plurality of outward facing cameras that capture images of a scene, where the plurality of outward facing cameras comprises:

a first subarray of cameras positioned at a first location on a right area of the headset, the first subarray of cameras including at least two cameras; and

a second subarray of cameras positioned at a second location on a left area of the headset, the second subarray of cameras including at least two cameras;

an illumination light source configured to project textured light onto the scene;

at least one processor; and

a memory containing an image processing application, where the image processing application directs the at least one processor to:

direct the illumination light source to project textured light onto the scene;

capture, using at least one camera of the first subarray of cameras and at least one camera of the second subarray of cameras, a set of images of the scene illuminated with the textured light;

generate depth information for the scene using the set of images;

render at least one image of the scene incorporating a virtual object positioned within the at least one image based upon the depth information; and

display the at least one rendered image on the at least one display.

2. The headset of claim 1 , wherein the cameras in the first and second, and third subarrays of cameras have the same imaging characteristics.

3. The headset of claim 1 , wherein the illumination light source is an infrared (IR) projector.

4. The headset of claim 1 , wherein the illumination light source is positioned at a third location between the first and second locations.

5. The headset of claim 1 , wherein at least one camera of the camera array is a color camera.

6. The headset of claim 1 , wherein the rendered at least one image of the scene comprises a video, and the position of the virtual object is anchored with respect to topological relationships in the scene in the video.

7. The headset of claim 1 , wherein the image processing application further directs the processor to:

capture at least one color image of the scene using the camera array; and

warp the depth information to a different viewpoint;

wherein the at least one rendered image comprises a synthesized image of the scene based upon the warped depth information and the at least one color image of the scene.

8. The headset of claim 1 , wherein the first subarray of cameras and the second subarray of cameras are symmetrically positioned across a central vertical axis of the headset.

9. The headset of claim 1 , wherein:

the first subarray of cameras comprises a first camera and a second camera, where the first and second cameras have different imaging characteristics;

the second subarray of cameras comprises a third camera and a fourth camera, where the third and fourth cameras have different imaging characteristics.

10. The headset of claim 9 , wherein:

the first and third cameras have the same imaging characteristics; and

the second and fourth cameras have the same imaging characteristics.

11. A method for displaying virtual objects in virtual reality, comprising:

projecting textured light onto a scene using an illumination light source;

capturing a set of images of the scene illuminated with the textured light using, at least one camera from a first subarray of cameras and at least one camera of a second subarray of cameras, where:

the first subarray of cameras is positioned on a left side of a headset and face outwards; and

the second subarray of cameras is positioned on a right side of the headset and face outwards;

generating, using a processor of the headset, depth information for the scene using the set of images;

rendering, using the processor of the headset and based upon the depth information, at least one image of the scene incorporating a virtual object positioned within the at least one; and

displaying the at least one rendered image on the at least one display of the headset.

12. The method of claim 11 , wherein the cameras in the first and second subarrays of cameras have the same imaging characteristics.

13. The method of claim 11 , wherein the illumination light source is an infrared (IR) projector.

14. The method of claim 11 , wherein the illumination light source is positioned at a third location between the first and second locations.

15. The method of claim 11 , wherein at least one camera of the camera array is a color camera.

16. The headset of claim 11 , wherein the rendered at least one image of the scene comprises a video, and the position of the virtual object is anchored with respect to topological relationships in the scene in the video.

17. The method of claim 11 , further comprising:

capturing at least one color image of the scene; and

warping the depth information to a different viewpoint;

wherein the at least one rendered image comprises a synthesized image of the scene based upon the warped depth information and the at least one color image of the scene.

18. The method of claim 11 , wherein the first subarray of cameras and the second subarray of cameras are symmetrically positioned across a central vertical axis of the headset.

19. The method of claim 18 , wherein:

the first subarray of cameras comprises a first camera and a second camera, where the first and second cameras have different imaging characteristics;

the second subarray of cameras comprises a third camera and a fourth camera, where the third and fourth cameras have different imaging characteristics.

20. The headset of claim 19 , wherein:

the first and third cameras have the same imaging characteristics; and

the second and fourth cameras have the same imaging characteristics.

Assignments (9)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 2, 2024
From: FOTONATION LIMITED
To: XPERI PRODUCT SPINCO CORPORATION
Reel/Frame 068106/0617 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 2, 2024
From: XPERI PRODUCT SPINCO CORPORATION
To: XPERI HOLDING CORPORATION
Reel/Frame 068106/0652 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 2, 2024
From: XPERI HOLDING CORPORATION
To: ADEIA IMAGING LLC
Reel/Frame 068106/0765 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2024
From: KIP PELI P1 LP
To: PELICAN IMAGING CORPORATION
Reel/Frame 067681/0255 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2024
From: PELICAN IMAGING CORPORATION
To: FOTONATION CAYMAN LIMITED
Reel/Frame 067681/0332 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2024
From: VENKATARAMAN, KARTIK; LELESCU, DAN; DUPARRE, JACQUES
To: PELICAN IMAGING CORPORATION
Reel/Frame 067674/0064 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2024
From: FOTONATION CAYMAN LIMITED
To: FOTONATION LIMITED
Reel/Frame 067674/0200 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 10, 2024
From: PELICAN IMAGING CORPORATION
To: KIP PELI P1 LP
Reel/Frame 067681/0228 →
SECURITY INTEREST Recorded May 3, 2023
From: ADEIA GUIDES INC.; ADEIA IMAGING LLC; ADEIA MEDIA HOLDINGS LLC; ADEIA MEDIA SOLUTIONS INC.; ADEIA SEMICONDUCTOR ADVANCED TECHNOLOGIES INC.; ADEIA SEMICONDUCTOR BONDING TECHNOLOGIES INC.; ADEIA SEMICONDUCTOR INC.; ADEIA SEMICONDUCTOR SOLUTIONS LLC; ADEIA SEMICONDUCTOR TECHNOLOGIES LLC; ADEIA SOLUTIONS LLC
To: BANK OF AMERICA, N.A., AS COLLATERAL AGENT
Reel/Frame 063529/0272 →
Continuity (4)
Continuation 17068243 · Oct 12, 2020
Division 15133186 · Apr 19, 2016
Provisional Application 62149636 · Apr 19, 2015
Related Publication 20230007223A1 · Jan 5, 2023