Title:
ACTIVE MARKER DEVICE AND METHOD OF DESIGN THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/025961
Kind Code:
A3
Abstract:
An active marker device, and method of design thereof, for use in a motion tracking system are provided. In one arrangement, the device comprises a mounting body comprising a mounting surface. A plurality of light emitting units are mounted on respective mounting portions of the mounting surface. A control system controls the plurality of light emitting units such that light is emitted simultaneously from a selected subset of light emitting units. A plurality of optical elements are mounted on the mounting surface. Each optical element covers a different one of the light emitting units and is configured so that an inner surface of the optical element is separated from an outer surface of the light emitting unit. Each optical element redirects a portion of light emitted by the light emitting unit covered by the optical element to be more parallel to the mounting portion of the light emitting unit.
Inventors:
WEST PETER (GB)
BEATTIE MILES (GB)
SMYTH PAUL (GB)
PRITCHETT PHIL (GB)
ARAUJO JOSÉ (GB)
REYNOLDS DAVID (GB)
BEATTIE MILES (GB)
SMYTH PAUL (GB)
PRITCHETT PHIL (GB)
ARAUJO JOSÉ (GB)
REYNOLDS DAVID (GB)
Application Number:
PCT/GB2019/052162
Publication Date:
May 28, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
OXFORD METRICS PLC (GB)
International Classes:
G01S1/70; G06T7/73
Foreign References:
| US6603865B1 | 2003-08-05 | |||
| US20140152550A1 | 2014-06-05 | |||
| CN203384819U | 2014-01-08 | |||
| US20050231948A1 | 2005-10-20 | |||
| US20090122146A1 | 2009-05-14 | |||
| US20160005174A1 | 2016-01-07 |
Other References:
ANDREAS BREITENMOSER ET AL: "A monocular vision-based system for 6D relative robot localization", INTELLIGENT ROBOTS AND SYSTEMS (IROS), 2011 IEEE/RSJ INTERNATIONAL CONFERENCE ON, IEEE, 25 September 2011 (2011-09-25), pages 79 - 85, XP032060466, ISBN: 978-1-61284-454-1, DOI: 10.1109/IROS.2011.6048432
THOMAS PINTARIC ET AL: "A rigid-body target design methodology for optical pose-tracking systems", PROCEEDINGS OF THE 2008 ACM SYMPOSIUM ON VIRTUAL REALITY SOFTWARE AND TECHNOLOGY, VRST '08, ACM PRESS, NEW YORK, NEW YORK, USA, 27 October 2008 (2008-10-27), pages 73 - 76, XP058133320, ISBN: 978-1-59593-951-7, DOI: 10.1145/1450579.1450594
THOMAS PINTARIC ET AL: "A rigid-body target design methodology for optical pose-tracking systems", PROCEEDINGS OF THE 2008 ACM SYMPOSIUM ON VIRTUAL REALITY SOFTWARE AND TECHNOLOGY, VRST '08, ACM PRESS, NEW YORK, NEW YORK, USA, 27 October 2008 (2008-10-27), pages 73 - 76, XP058133320, ISBN: 978-1-59593-951-7, DOI: 10.1145/1450579.1450594
Attorney, Agent or Firm:
J A KEMP LLP (GB)
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