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Title:
ALIGNMENT METHOD AND ALIGNMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/196224
Kind Code:
A1
Abstract:
An alignment method and an alignment device, for use in reducing hardware process requirements and reducing costs. The method comprises: determining a first 3D position of a positioning target and a first IMU calculated 3D position when an IMU sensor enters a stable state (201); determining a second 3D position of the positioning target and a second IMU calculated 3D position when the IMU sensor exits the stable state (202); determining a first relative position on the basis of the first 3D position and of the second 3D position (203); determining a second relative position on the basis of information on the first IMU calculated 3D position and on the second IMU calculated 3D position (204); when the first relative position and the second relative position satisfy a preset criterion, then determining a target vector pair by means of vector normalization of the first relative position and of the second relative position (206); storing the target vector pair to a target buffer pool (207); and when the number of vector pairs in the target buffer pool is greater than or equal to a preset value, aligning a positioning device with the IMU sensor on the basis of a rotation matrix calculated via a rigid algorithm.

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Inventors:
HU YONGTAO (CN)
DAI JINGWEN (CN)
HE JIE (CN)
Application Number:
PCT/CN2017/096314
Publication Date:
November 01, 2018
Filing Date:
August 07, 2017
Export Citation:
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Assignee:
GUANGDONG VIRTUAL REALITY TECH CO LTD (CN)
International Classes:
G06F3/01
Foreign References:
CN103994765A2014-08-20
CN105751230A2016-07-13
CN105698765A2016-06-22
CN106197407A2016-12-07
US20060284979A12006-12-21
Attorney, Agent or Firm:
SHENZHEN ZHIQUAN INTELLECTUAL PROPERTY OFFICE (CN)
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