Title:
ACCELERATOR OPTICAL DISTANCE INDICATOR APPARATUS, CALIBRATION METHOD, AND OPTICAL DISTANCE INDICATOR GENERATION METHOD
Document Type and Number:
WIPO Patent Application WO/2020/228274
Kind Code:
A1
Abstract:
An accelerator optical distance indicator apparatus, a calibration method, and an optical distance indicator generation method, relating to the technical field of medical appliances. The accelerator optical distance indicator apparatus comprises a projector (101), a camera (102), an optical distance indicator calibration plate (103), and an optical distance indicator (104); the projector (101) is configured to project a structured light mode sequence pattern and an optical distance indicator pattern; the camera (102) is configured to collect the structured light mode sequence pattern projected by the projector (101) and an image of the optical distance indicator calibration plate (103); the optical distance indicator calibration plate (103) is configured to calibrate the projector (101) and the camera (102) and verify precision of the optical distance indicator apparatus; the optical distance indicator (104) is configured to indicate a scale of the optical distance indicator apparatus. The accelerator optical distance indicator apparatus may calibrate the camera (102) and the projector (101) by means of structured light to obtain calibration parameters, and may also further generate the optical distance indicator pattern using the obtained calibration parameters. The accelerator optical distance indicator apparatus is convenient to mount, the calibration accuracy of the calibration method is high, and the calibration process of the optical distance indicator apparatus is simplified.
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Inventors:
WEN HU ER (CN)
XUE YU (CN)
HUANG SISHENG (CN)
YAO JONATHAN YI (CN)
XUE YU (CN)
HUANG SISHENG (CN)
YAO JONATHAN YI (CN)
Application Number:
PCT/CN2019/116980
Publication Date:
November 19, 2020
Filing Date:
November 11, 2019
Export Citation:
Assignee:
SUZHOU LINATECH MEDICAL SCIENCE AND TECH (CN)
International Classes:
A61N5/10; G06T7/00
Domestic Patent References:
| WO2016172312A1 | 2016-10-27 |
Foreign References:
| CN110141800A | 2019-08-20 | |||
| CN104732539A | 2015-06-24 | |||
| CN104657982A | 2015-05-27 | |||
| CN108225216A | 2018-06-29 |
Attorney, Agent or Firm:
SUZHOU HUABO INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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