公开(公告)号：US20230061084A1

公开(公告)日：2023-03-02

申请号：US17463254

申请日：2021-08-31

Applicant: Raytheon Company

Inventor： James N. Head ,  Wenkai Qin ,  Jeffrey S. Klein ,  Jody D. Verret

IPC: G06T15/20 ,  G01C21/00

Abstract: Systems, devices, methods, and computer-readable media for horizon-based navigation. A method can include receiving image data corresponding to a geographical region in a field of view of an imaging unit and in which the device is situated, based on the received image data, generating, by the processing unit, an image horizon corresponding to a horizon of the geographical region and from a perspective of the imaging unit, projecting three-dimensional (3D) points of a 3D point set of the geographical region to an image space of the received image data resulting in a synthetic image, generating, by the processing unit, a synthetic image horizon of the synthetic image, and responsive to determining the image horizon sufficiently correlates with the synthetic image horizon, providing a location corresponding to a perspective of the synthetic image as a location of the processing unit.

公开(公告)号：US11580690B1

公开(公告)日：2023-02-14

申请号：US17463254

申请日：2021-08-31

Applicant: Raytheon Company

Inventor： James N. Head ,  Wenkai Qin ,  Jeffrey S. Klein ,  Jody D. Verret

IPC: G06T15/20 ,  G01C21/00

Abstract: Systems, devices, methods, and computer-readable media for horizon-based navigation. A method can include receiving image data corresponding to a geographical region in a field of view of an imaging unit and in which the device is situated, based on the received image data, generating, by the processing unit, an image horizon corresponding to a horizon of the geographical region and from a perspective of the imaging unit, projecting three-dimensional (3D) points of a 3D point set of the geographical region to an image space of the received image data resulting in a synthetic image, generating, by the processing unit, a synthetic image horizon of the synthetic image, and responsive to determining the image horizon sufficiently correlates with the synthetic image horizon, providing a location corresponding to a perspective of the synthetic image as a location of the processing unit.