Oblique photography
Tilting photography technology is a high-tech developed in the field of international photogrammetry in the past ten years. This technology acquires a wealth of top and side surfaces of buildings by simultaneously collecting images from one vertical, four oblique, and five different perspectives. High-resolution texture of the video.
It not only can truly reflect the situation of the ground objects, and obtain the texture information of the object with high precision, but also can generate a real 3D city model through advanced positioning, fusion, modeling and other technologies. This technology has been widely used in industries such as emergency command, homeland security, urban management, and real estate taxation in developed countries such as Europe and the United States.
Technical Features
Feature 1: Reflecting the real situation around the ground features
Compared with orthophotos, oblique images allow users to observe the grounds from multiple angles, reflecting the actual situation of the grounds more realistically, which greatly compensates for the application based on orthophotos. The insufficiency.
Feature 2: Oblique image can realize single image measurement.
Through the application of supporting software, measurement including height, length, area, angle, slope, etc. can be directly based on the result image, which expands the application of oblique photography technology in the industry.
Feature 3: The side texture of the building can be collected. For
various 3D digital city applications, the use of large-scale aerial photography features, coupled with the method of batch extraction and texture paste from oblique images, can effectively reduce the cost of city 3D modeling.
Feature 4: Small amount of data is easy to publish
on the Internet. Compared with the huge 3D data used in 3D GIS technology, the amount of data obtained by oblique photography is much smaller. The data format of the image can be quickly published on the Internet using mature technologies. , To achieve shared applications.
Sample data;
If you open the file-type data source directly and open its xml file, nothing happens;
Create a new plane scene;
Find the oblique photography group in the menu;
Generate configuration files under data management;
Browse to the Data folder of osgb; the default configuration file name is Config;
After confirming, generate Config.scp file;
In the layer manager, right-click on a common layer and add an image cache layer...;
Find the previous .scp file and confirm; then open it as follows;
