Title:
METHOD AND DEVICE FOR DETERMINING EXTERNAL PARAMETER OF STEREOSCOPIC CAMERA
Document Type and Number:
WIPO Patent Application WO/2018/068678
Kind Code:
A1
Abstract:
Provided are a method and device for determining an external parameter of a stereoscopic camera. The method comprises: acquiring earth surface data of the position of a stereoscopic camera; according to a three-dimensional coordinate, corresponding to each pixel point in the earth surface data, in a camera coordinate system corresponding to the stereoscopic camera, generating a first plane equation, which complies with the three-dimensional coordinate corresponding to each pixel point, in the camera coordinate system; according to the distance between an origin of the camera coordinate system and the earth surface, determining a mounting height of the stereoscopic camera; according to the first plane equation, generating a plane normal vector corresponding to the first plane equation; and according to the plane normal vector, determining a pitch angle of the stereoscopic camera and an inclined angle of the stereoscopic camera. By means of the embodiments of the present application, an external parameter of a stereoscopic camera can be determined without using a reference point in a scene.
Inventors:
ZHANG DI (CN)
GONG HUI (CN)
REN YE (CN)
GONG HUI (CN)
REN YE (CN)
Application Number:
PCT/CN2017/105061
Publication Date:
April 19, 2018
Filing Date:
September 30, 2017
Export Citation:
Assignee:
HANGZHOU HIKVISION DIGITAL TEC (CN)
International Classes:
H04N5/232
Foreign References:
| US20150310616A1 | 2015-10-29 | |||
| CN105474634A | 2016-04-06 | |||
| CN102736634A | 2012-10-17 |
Other References:
FENG, YICONG: "The Quickly Automated Extraction of Building Facades Information from Mobile LiDAR Point Clouds", DOCTORAL DISSERTATION, 30 November 2015 (2015-11-30), pages 1 - 130, XP009515646, ISSN: 1674-022X
See also references of EP 3528209A4
See also references of EP 3528209A4
Attorney, Agent or Firm:
PATENTSINO IP FIRM (CN)
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