Title:
METHOD AND SYSTEM FOR CORRECTING TEMPERATURE ERROR OF DEPTH CAMERA
Document Type and Number:
WIPO Patent Application WO/2019/075942
Kind Code:
A1
Abstract:
A method and system for correcting a temperature error of a depth camera. The method comprises: utilizing at least two depth cameras to acquire depth images of a current target, the at least two depth cameras have a partial common view area; modeling a measurement error of the depth cameras caused by a temperature change; and utilizing the modeled measurement error to correct the depth images, so that the corrected depth images have a minimum difference in the common view area. Based on the principle that depth values of a common view area of multiple depth cameras should be the same, a relationship model between a temperature change and a depth measurement error is established; and the solution and correction of the depth measurement error are realized by multiple solution methods, and the measurement precision of the depth cameras can be improved.
Inventors:
LIU XIANZHUO (CN)
HUANG ZHIMING (CN)
HUANG ZHIMING (CN)
Application Number:
PCT/CN2018/071990
Publication Date:
April 25, 2019
Filing Date:
January 09, 2018
Export Citation:
Assignee:
SHENZHEN ORBBEC CO LTD (CN)
International Classes:
G06T7/55; G06T7/80; H04N13/00
Foreign References:
| CN105323454A | 2016-02-10 | |||
| CN105432079A | 2016-03-23 | |||
| CN105027562A | 2015-11-04 | |||
| CN102436657A | 2012-05-02 | |||
| CN104937401A | 2015-09-23 | |||
| US20160104285A1 | 2016-04-14 |
Other References:
JING, XU ET AL.: "Stereo Correction of Binocular Images with Optical Axes Divergent Arrangement", JOURNAL OF SHANGHAI JIAOTONG UNIVERSITY, vol. 49, no. 2, 28 February 2015 (2015-02-28), pages 141 - 149, ISSN: 1006-2467
Attorney, Agent or Firm:
CHINA TRUER IP (CN)
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