Techniques for Determining Geolocations
US-2024345265-A1 · Oct 17, 2024 · US
Method estimating absolute orientation of a vehicle
US9476987B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9476987-B2 |
| Application number | US-200913511073-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 20, 2009 |
| Priority date | Nov 20, 2009 |
| Publication date | Oct 25, 2016 |
| Grant date | Oct 25, 2016 |
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- Title
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Abstract
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A method of estimating absolute orientation of a vehicle utilizing a camera and GPS. At least three images are selected from concurrent images taken above an essentially horizontal ground at a distance from each other. Key points are identified in each selected image. Absolute positions of the images are obtained from the GPS defining the image positions when a respective image was taken. Key points between selected images are matched to obtain an estimate of the absolute orientation.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method estimating absolute orientation of a vehicle, wherein the absolute orientation corresponds to how the vehicle is directed relative to a system of axes fixed relative to the ground consisting of utilization of a fixed mounted calibrated camera synchronized with a GPS receiver, the method consisting of: selecting at least three images from concurrent images taken above an essentially horizontal ground at a distance from each other, wherein the position of an image is defined as the position in space where the center of the camera was located when the image was taken; identifying key points in each selected image; obtaining absolute positions of the images from the GPS defining the image positions when a respective image was taken; and matching key points between selected images to obtain an estimate of the absolute orientation. 2. A method estimating absolute orientation of a vehicle, wherein the absolute orientation corresponds to how the vehicle is directed relative to a system of axes fixed relative to the ground consisting of utilization of a fixed mounted calibrated camera synchronized with a GPS receiver so that each taken image can be provided with a GPS-position for the camera at the moment when the photo or image is taken, the method consisting of: selecting at least three images from concurrent images taken above an essentially horizontal ground at a distance from each other, wherein the position of an image is defined as the position in space where the center of the camera was located when the image was taken; identifying key points in each selected image; obtaining absolute positions of the images from the GPS defining the image positions when a respective image was taken; and matching key points between selected images to obtain an estimate of the absolute orientation.
Assignees
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Classifications
Physics · mapped topic
Video; Image sequence · CPC title
Determination of attitude (using inertial means G01C9/00; control of attitude G05D1/49) · CPC title
- G01S19/14Primary
specially adapted for specific applications · CPC title
Camera pose · CPC title
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- What does patent US9476987B2 cover?
- A method of estimating absolute orientation of a vehicle utilizing a camera and GPS. At least three images are selected from concurrent images taken above an essentially horizontal ground at a distance from each other. Key points are identified in each selected image. Absolute positions of the images are obtained from the GPS defining the image positions when a respective image was taken. Key p…
- Who is the assignee on this patent?
- Carlbom Pelle, Beckman Thomas, Erlandsson Ulf, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification G01S19/14. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Oct 25 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).