Real-time monitoring video and three-dimensional scene fusion method based on three-dimensional GIS

Abstract

The invention discloses a real-time monitoring video and three-dimensional scene fusion method based on a three-dimensional GIS (Geographic Information System), which belongs to the technical field ofthree-dimensional GIS, and comprises the following steps: S1, inputting model data, checking texture and triangular patch number of an artificial modeling model by using hypergraph iDesktop software,removing repeated points, converting a format to generate a model data set, and storing the model data set in a database; performing root node combination and texture compression on the original OSGBformat data by the inclination model; and S2, converting the model data set and the inclined OSGB slice into a three-dimensional slice cache in an S3M format. The live-action fusion method disclosedby the invention is oriented to the fields of public security and smart cities, avoids the application limitation of the traditional two-dimensional map and monitoring video, solves the disadvantage that the monitoring video picture is split, enhances the spatial perception of video monitoring, improves the display performance of multi-path real-time video integration in a three-dimensional sceneto a certain extent, and improves the real-time performance of the three-dimensional scene. The method can be widely applied to the fields of public security and smart cities with strong videos and strong GIS services.

Description

technical field [0001] The invention relates to the technical field of three-dimensional GIS, in particular to a method for fusing real-time monitoring video and three-dimensional scenes based on three-dimensional GIS. Background technique [0002] With the wide application of surveillance video and the vigorous development of GIS technology, video-based GIS technology has been born. The fusion of surveillance video and geospatial data in different scenarios is a research hotspot in video GIS. Existing research results can be roughly divided into two categories according to different association methods: ① time association mode, which is characterized by taking the timestamp as the benchmark, and realizes the synchronous association between video data and GPS positioning information through time index; ② location association mode, which The feature is to perform video association based on camera positioning information. Judging from the current project applications, the fus...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of fusion display of real-time monitoring video and 3D model data, the present invention provides a method for merging real-time monitoring video and 3D scene based on 3D GIS, using a service-oriented configuration method for front-end loading of scenes and video streams, To meet the needs of smooth browsing of 3D scenes and low-latency transmission of real-time video streams

Images