Invention Grant
- Patent Title: Panoramic camera systems
-
Application No.: US15490889Application Date: 2017-04-18
-
Publication No.: US10368062B2Publication Date: 2019-07-30
- Inventor: Forrest Samuel Briggs , Michael John Toksvig , Brian Keith Cabral
- Applicant: Facebook, Inc.
- Applicant Address: US CA Menlo Park
- Assignee: Facebook, Inc.
- Current Assignee: Facebook, Inc.
- Current Assignee Address: US CA Menlo Park
- Agency: Fenwick & West LLP
- Main IPC: G06T7/55
- IPC: G06T7/55 ; H04N5/247 ; H04N17/00 ; G06K9/62 ; H04N5/232 ; G06T5/00 ; G06T15/06 ; G06T19/20 ; G06T7/70 ; H04N7/18 ; G06T5/20 ; H04N5/222 ; G06K9/00 ; G06K9/20 ; G06K9/46 ; G06K9/52 ; G06K9/66 ; G06T7/77 ; G08B13/196 ; H04N5/225

Abstract:
A camera system captures images from a set of cameras to generate binocular panoramic views of an environment. The cameras are oriented in the camera system to maximize the minimum number of cameras viewing a set of randomized test points. To calibrate the system, matching features between images are identified and used to estimate three-dimensional points external to the camera system. Calibration parameters are modified to improve the three-dimensional point estimates. When images are captured, a pipeline generates a depth map for each camera using reprojected views from adjacent cameras and an image pyramid that includes individual pixel depth refinement and filtering between levels of the pyramid. The images may be used generate views of the environment from different perspectives (relative to the image capture location) by generating depth surfaces corresponding to the depth maps and blending the depth surfaces.
Public/Granted literature
- US20180300892A1 PANORAMIC CAMERA SYSTEMS Public/Granted day:2018-10-18
Information query