Title:
INTERACTIVE VIDEO PROJECTION METHOD AND APPARATUS, DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2021/227360
Kind Code:
A1
Abstract:
An interactive video projection method and apparatus, a device, and a storage medium. The method comprises: determining an initial position and attitude of a camera in a virtual scene according to a video frame captured by a camera lens, and rendering a three-dimensional map on the basis of the initial position and attitude; obtaining a two-dimensional picture corresponding to a photographing range of the camera lens in the initial position and attitude; performing feature matching on the two-dimensional picture and the video frame captured by the camera lens; after the matching is completed, determining three-dimensional feature points in three-dimensional map corresponding to two-dimensional feature points on the video frame; determining a pose matrix, focal length information, and/or distortion parameters of the camera by means of a pose solving algorithm; and setting the camera in the virtual scene according to the above information, and adding the video frame to a rendering pipeline for video projection. Therefore, semi-automatic interactive quick video projection mapping is achieved without manually and accurately configuring camera parameters by a worker, thereby improving the video projection efficiency.
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Inventors:
GAO XING (CN)
XU JIANMING (CN)
CHEN QIYI (CN)
SHI LIYANG (CN)
XU JIANMING (CN)
CHEN QIYI (CN)
SHI LIYANG (CN)
Application Number:
PCT/CN2020/121664
Publication Date:
November 18, 2021
Filing Date:
October 16, 2020
Export Citation:
Assignee:
PCI SUNTEK TECH CO LTD (CN)
International Classes:
G06T17/05
Foreign References:
| CN111640181A | 2020-09-08 | |||
| CN111586360A | 2020-08-25 | |||
| CN105844696A | 2016-08-10 | |||
| CN108830894A | 2018-11-16 | |||
| US20010043738A1 | 2001-11-22 |
Attorney, Agent or Firm:
BEIJING ZFANG PATENT AGENCY (CN)
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