Automatic multiple depth cameras synchronization using time sharing
US-2015373322-A1 · Dec 24, 2015 · US
Reducing interference between multiple infra-red depth cameras
US9247238B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9247238-B2 |
| Application number | US-201113017518-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 31, 2011 |
| Priority date | Jan 31, 2011 |
| Publication date | Jan 26, 2016 |
| Grant date | Jan 26, 2016 |
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Abstract
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Systems and methods for reducing interference between multiple infra-red depth cameras are described. In an embodiment, the system comprises multiple infra-red sources, each of which projects a structured light pattern into the environment. A controller is used to control the sources in order to reduce the interference caused by overlapping light patterns. Various methods are described including: cycling between the different sources, where the cycle used may be fixed or may change dynamically based on the scene detected using the cameras; setting the wavelength of each source so that overlapping patterns are at different wavelengths; moving source-camera pairs in independent motion patterns; and adjusting the shape of the projected light patterns to minimize overlap. These methods may also be combined in any way. In another embodiment, the system comprises a single source and a mirror system is used to cast the projected structured light pattern around the environment.
First claim
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The invention claimed is: 1. A depth camera system comprising: a plurality of cameras with at least partially overlapping field of views; a plurality of sources, each arranged to project a structured light pattern; a controller arranged to control a plurality of source-camera pairs to reduce the interference between projected structured light patterns and to receive signals from each of the cameras for use in depth determination, controlling a plurality of source-camera pairs…
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- What does patent US9247238B2 cover?
- Systems and methods for reducing interference between multiple infra-red depth cameras are described. In an embodiment, the system comprises multiple infra-red sources, each of which projects a structured light pattern into the environment. A controller is used to control the sources in order to reduce the interference caused by overlapping light patterns. Various methods are described includin…
- Who is the assignee on this patent?
- Izadi Shahram, Molyneaux David, Hilliges Otmar, and 7 more
- What technology area does this patent fall under?
- Primary CPC classification H04N13/0271. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 26 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).