Mid-air-gesture editing method, device, display system and medium
US-2024427423-A1 · Dec 26, 2024 · US
Planar mapping and tracking for mobile devices
US9020187B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9020187-B2 |
| Application number | US-201213463643-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 3, 2012 |
| Priority date | May 27, 2011 |
| Publication date | Apr 28, 2015 |
| Grant date | Apr 28, 2015 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
Real time tracking and mapping is performed using images of unknown planar object. Multiple images of the planar object are captured. A new image is selected as a new keyframe. Homographies are estimated for the new keyframe and each of a plurality of previous keyframes for the planar object that are spatially distributed. A graph structure is generated using the new keyframe and each of the plurality of previous keyframes and the homographies between the new keyframe and each of the plurality of previous keyframes. The graph structure is used to create a map of the planar object. The planar object is tracked based on the map and subsequently captured images.
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: capturing multiple images of a planar object; selecting a new image as a new keyframe; calculating homographies between the new keyframe and each of a plurality of previous keyframes for the planar object that are spatially distributed; generating a graph structure using the new keyframe and each of the plurality of previous keyframes and the homographies between the new keyframe and each of the plurality of previous keyframes; u…
Assignees
Inventors
Classifications
- G06F18/00Primary
Physics · mapped topic
Physics · mapped topic
- G06T7/0042Primary
Physics · mapped topic
- G06T7/246Primary
Physics · mapped topic
Physics · mapped topic
Patent family
Related publications grouped by family.
External sources
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9020187B2 cover?
- Real time tracking and mapping is performed using images of unknown planar object. Multiple images of the planar object are captured. A new image is selected as a new keyframe. Homographies are estimated for the new keyframe and each of a plurality of previous keyframes for the planar object that are spatially distributed. A graph structure is generated using the new keyframe and each of the pl…
- Who is the assignee on this patent?
- Pirchheim Christian, Reitmayr Gerhard, Qualcomm Inc
- What technology area does this patent fall under?
- Primary CPC classification G06F18/00. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Apr 28 2015 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).