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Interactive calibration method and apparatus based on three dimensional reconstruction in three dimensional monitoring system

A technology of 3D reconstruction and monitoring system, which is applied in the field of image processing and computer vision, can solve the problems of heavy workload and inability to deal with active cameras of cameras, etc., and achieve the effect of reducing workload

Active Publication Date: 2016-06-15
TSINGHUA UNIV
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  • Application Information

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Problems solved by technology

However, this method has a large workload (such as proportional to the number of cameras), and is only suitable for static cameras, and cannot handle camera disturbances and active camera (Pan-Tilt-Zoom, PTZ) motion

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  • Interactive calibration method and apparatus based on three dimensional reconstruction in three dimensional monitoring system

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0020] The interactive calibration method and device based on 3D reconstruction in the 3D monitoring system according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0021] figure 1 is a flowchart of an interactive calibration method based on 3D reconstruction in a 3D monitoring system according to an embodiment of the present invention. Such as figure 1 As shown, the interactive calibration method based on three-dimensional reconstruction in the three-dimension...

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Abstract

The invention discloses an interactive calibration method and apparatus based on three dimensional reconstruction in a three dimensional monitoring system. The interactive calibration method includes the steps: acquiring a reference background model and monitoring videos; acquiring a plurality of scene images, and connecting a plurality of monitoring cameras corresponding to the monitoring videos, wherein at least one scene image among the plurality of scene images has a part which is overlapped with the site of the monitoring videos; according to the plurality of scene images, performing three dimensional reconstruction so as to generate a three dimensional characteristic point cloud for the scenes, and embedding the three dimensional characteristic point cloud into the reference background model; estimating the current frame gesture of the monitoring videos, and performing automatic calibration on the monitoring cameras; and calculating the homograph from the current frame gesture to the reference background model, and embedding the image projection into the reference background model. The interactive calibration method based on three dimensional reconstruction in a three dimensional monitoring system can realize visual, convenient and unified three dimensional video monitoring effect.

Description

technical field [0001] The invention relates to technical fields such as computer vision and image processing, and in particular to an interactive calibration method and device based on three-dimensional reconstruction in a three-dimensional monitoring system. Background technique [0002] At present, the three-dimensional monitoring system is a frontier research direction in the intelligent monitoring system. The 3D monitoring system embeds a large number of monitoring equipment video images into a unified reference background model in real time, integrates all monitoring image information, and forms an overall cognition of the monitoring situation and free perspective observation. Compared with the traditional two-dimensional monitoring system, monitoring personnel can quickly obtain the exact position and monitoring content of the camera without facing dozens or even hundreds of monitoring screens, and establish a correspondence with the on-site environment. The 3D monit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00
CPCG06T2207/20108G06T2207/30244G06T7/75G06T2207/10016G06T7/55G06T2207/30232G06V20/52G06V10/757G06V10/462G06T5/70G06T7/80G06F16/901G06T3/4038
Inventor 周杰邓磊赖伟良
Owner TSINGHUA UNIV
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