Title:
CAPTURE BALL-BASED SPHERE DISTRIBUTION METHOD, MOTION ATTITUDE IDENTIFICATION METHOD AND SYSTEM, AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/196192
Kind Code:
A1
Abstract:
A capture ball-based sphere distribution method, a motion attitude identification method and system, and a device, wherein the sphere distribution method enables the surface of a sphere to appear in a uniform graphical distribution state, since a predetermined graphic combination is used to divide the surface of the sphere, which is beneficial in arranging uniform reflective mark points on the surface of the sphere in order to form a capture ball used for optical capture, and is beneficial in an optical motion capture system identifying and obtaining motion attitude information of the capture ball according to the displacement change of the reflective mark points. In addition, since a matching method between identifiable reflective mark points and a capture ball is added when a plurality of matching points on the capture ball are acquired, and an iterative algorithm that calculates sphere center coordinates is introduced when sphere center coordinates of the capture ball are acquired, the motion attitude identification method effectively prevents situations of false identification caused by matching errors of reflective mark points and an increase in sphere center coordinate errors, which is thus beneficial in improving the degree to which the system identifies the capture ball.
Inventors:
WANG YUE (CN)
NAGASAKA TOMOHIRO (CN)
XU QIUZI (CN)
NAGASAKA TOMOHIRO (CN)
XU QIUZI (CN)
Application Number:
PCT/CN2018/090784
Publication Date:
October 17, 2019
Filing Date:
June 12, 2018
Export Citation:
Assignee:
SHENZHEN REALIS MULTIMEDIA TECH CO LTD (CN)
International Classes:
G06K9/00
Foreign References:
| CN107767424A | 2018-03-06 | |||
| CN106774365A | 2017-05-31 | |||
| CN107067424A | 2017-08-18 | |||
| US20140141900A1 | 2014-05-22 |
Attorney, Agent or Firm:
DHC IP ATTORNEYS (CN)
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