Title:
OPTICAL TRACKING SYSTEM, AND METHOD FOR CALCULATING POSTURE OF MARKER PART IN OPTICAL TRACKING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2015/183049
Kind Code:
A1
Abstract:
An optical tracking system comprises: a marker part; an image forming part; and a processing part. The marker part includes: a pattern having particular information; and a first lens which is spaced apart from the pattern and has a first focal length. The image forming part includes: a second lens having a second focal length; and an image forming unit which is spaced apart from the second lens and has an image of the pattern formed by the first lens and the second lens. The processing part determines the posture of the marker part from a coordinate conversion formula between coordinates on the pattern surface of the pattern and pixel coordinates on the image of the pattern, and tracks the marker part by using the determined posture of the marker part. Therefore, the present invention can accurately track a marker part by a simpler and easier method.
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Inventors:
LEE HYUN KI (KR)
CHAE YOU SEONG (KR)
KIM MIN YOUNG (KR)
CHAE YOU SEONG (KR)
KIM MIN YOUNG (KR)
Application Number:
PCT/KR2015/005442
Publication Date:
December 03, 2015
Filing Date:
May 29, 2015
Export Citation:
Assignee:
KOH YOUNG TECH INC (KR)
KYUNGPOOK NAT UNIV IND ACAD (KR)
KYUNGPOOK NAT UNIV IND ACAD (KR)
International Classes:
G06T7/20
Foreign References:
| US20110017826A1 | 2011-01-27 | |||
| JP2007090448A | 2007-04-12 | |||
| KR20110081759A | 2011-07-14 | |||
| KR100971667B1 | 2010-07-22 | |||
| KR101262181B1 | 2013-05-14 |
Other References:
See also references of EP 3151195A4
Attorney, Agent or Firm:
CHANG, Duck Soon et al. (KR)
장덕순 (KR)
장덕순 (KR)
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