Title:
THREE-DIMENSIONAL RECONSTRUCTION METHOD AND APPARATUS FOR MONOCULAR ENDOSCOPE IMAGE, AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/115071
Kind Code:
A1
Abstract:
A three-dimensional reconstruction method for a monocular endoscope image. The method comprises: acquiring a plurality of distorted images, photographed by a monocular endoscope, of a checkerboard calibration target, and performing distortion correction on the plurality of distorted images of the checkerboard calibration target to obtain an image sequence (S101); determining a key frame from the image sequence (S102); acquiring a pose parameter of the key frame, and estimating a depth map of the key frame (S103); and performing image reconstruction on the basis of the pose parameter of the key frame and the depth map of the key frame to obtain a three-dimensional point cloud (S104). Further provided are a three-dimensional reconstruction apparatus (300) for a monocular endoscope image, and a terminal device (400). An error caused by imaging distortion of a monocular endoscope is reduced, and the display effect of an image is also improved.
Inventors:
LIAO XIANGYUN (CN)
SUN YINZI (CN)
WANG QIONG (CN)
WANG PINGAN (CN)
SUN YINZI (CN)
WANG QIONG (CN)
WANG PINGAN (CN)
Application Number:
PCT/CN2020/129546
Publication Date:
June 17, 2021
Filing Date:
November 17, 2020
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
G06T7/55
Foreign References:
| CN111145238A | 2020-05-12 | |||
| CN103247075A | 2013-08-14 | |||
| CN109448041A | 2019-03-08 | |||
| CN109544677A | 2019-03-29 | |||
| CN108898630A | 2018-11-27 | |||
| US20140111507A1 | 2014-04-24 |
Attorney, Agent or Firm:
BEIJING ZHONG XUN TONG DA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF: