发明名称 |
REDUCING INTERFERENCE BETWEEN MULTIPLE INFRA-RED DEPTH CAMERAS |
摘要 |
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. |
申请公布号 |
US2016163054(A1) |
申请公布日期 |
2016.06.09 |
申请号 |
US201615001645 |
申请日期 |
2016.01.20 |
申请人 |
Microsoft Technology Licensing, LLC |
发明人 |
Izadi Shahram;Molyneaux David;Hilliges Otmar;Kim David;Shotton Jamie Daniel Joseph;Hodges Stephen Edward;Butler David Alexander;Fitzgibbon Andrew;Kohli Pushmeet |
分类号 |
G06T7/00;G01B9/08;H04N5/232;G01B11/22;H04N5/33;H04N5/247 |
主分类号 |
G06T7/00 |
代理机构 |
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代理人 |
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主权项 |
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; and 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 comprising controlling a plurality of sources and a plurality of cameras, the controller being further arranged to control the movement of a source-camera pair relative to other source-camera pairs such that the structured light pattern projected by the source is fixed relative to the camera. |
地址 |
Redmond WA US |