Model and panorama registration method, system and device, medium and map

Abstract

The invention relates to the field of data acquisition, in particular to a model and panorama registration method, system and device, a medium and a map. The registration method of the three-dimensional model and the live-action panorama comprises the following steps: carrying out rasterization on the three-dimensional model to generate a virtual panorama at a virtual panorama viewpoint; extracting a first contour line from the virtual panorama, and extracting a second contour line from the live-action panorama; and registering the virtual panorama and the live-action panorama according to thefirst contour line and the second contour line. Under the adverse conditions that the quality of the three-dimensional model is low, the live-action panorama is shielded, and the live-action panoramais not matched with the space-time of the three-dimensional model, high configuration precision can still be automatically achieved. The invention provides a new method for automatically registeringthe three-dimensional model and the live-action panorama in processing after large-scale data acquisition, the defect of failure of automatic matching of feature points between different source imagesis avoided, and the time and labor cost of data processing can be effectively reduced.

Description

technical field [0001] The invention relates to the field of data acquisition, in particular to a method, system, equipment and medium for registering a model and a panoramic image, and a map. Background technique [0002] At present, in the application of Geographic Information System (GIS), data is an important part. There are many types of GIS data, including GIS basic data, satellite image data, oblique photography data, real 3D panoramic data, terrain data, 3D data. Model data, road network data, etc. With the development of software and hardware technology of oblique photogrammetry, and the need to quickly construct large-scale topography, oblique photogrammetry products that can provide fine texture and geometric features and high-precision positioning at the same time have become a popular choice for establishing large-scale topography, especially in urban areas. Important source data for Digital Surface Model (DSM) and Digital Elevation Model (DEM). [0003] The o...

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Problems solved by technology

[0008] However, it is very difficult to register other 3D models such as 3D oblique photographic models with real-world panoramas. The main manifestations are: different temporal and spatial resolutions, differences in panorama acquisition time and accuracy from oblique photographic models; panoramic positioning accuracy is related to GPS acquisition , the latter may cause increased positioning errors due to weak GPS signals or multi-path interference; real-scene panoramic images and oblique photography model images belong to heterogeneous images, and the points with the same name are poor in conventional similarity measures such as color, texture, and gradient. Model registration by automatically matching points; occlusion and parallax also cause a significant reduction in correlation

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