What is 3D real-world modeling? Generally speaking, 3D real scene modeling is actually a kind of 3D virtual display technology that uses a digital camera or laser scanner to take a multi-angle look around the existing scene and then uses the 3D real scene modeling software ContextCapture to process and generate a 3D virtual display technology. 3D real scene modeling can zoom in, zoom out, move, view from multiple angles, etc., and view the parameters (length, width, height, area, volume) of the objects in the 3D real scene model and real scene data information Consistent, the error value is up to 1%. Three-dimensional real-world modeling can be used for site planning, area measurement, and earthwork calculation. In addition, it can be connected with the real-world model schedule analysis software to analyze the construction schedule of the project, and the real-world model virtual space operation and maintenance management.
Specifically, real-scene 3D oblique modeling refers to a real-scene 3D model made by oblique photography technology, which can also be divided into two concepts to explain: one is oblique photography and the other is real 3D.
Generally speaking, photography is forward photography. Oblique photography, as the name implies, is that when shooting, the camera has an oblique angle with the object to be shot, which is called oblique photography.
Three-dimensional real scene modeling (tilt photography technology) is a high-tech that has gradually developed in the field of international photogrammetry in recent years. Compared with the vertical photography data collected by traditional aerial surveys, this technology adds multiple lenses at different angles from a vertical, Four oblique and five different angles of view are synchronized to collect images, and a wealth of high-resolution texture data of the building's top and side views can be obtained, and multiple high-resolution three-dimensional images of the same location can be obtained at the same time from different angles.
Aerial image processing system:
Pixel-Mosaic is an aerial image processing system that integrates data processing automation, efficient and stable operation, and professional accuracy of data results. It perfectly combines the latest research results of photogrammetry and computer vision technology. It overcomes the problems of unstable aircraft attitude and large image distortion, and has the characteristics of full automatic, high efficiency, high precision, and support for massive data processing. Its single node can process more than 10,000 UAV images. The efficient parallel system and highly automated operation process can quickly get started without professional training, which greatly reduces the personnel requirements of the enterprise in the data processing link.
The mid-dimensional space three-dimensional real-world modeling technology can truly reflect the situation of the ground objects, obtain the texture information of the model with high precision, and perform a series of operations such as image preprocessing, regional joint adjustment, and multi-view impact matching based on detailed aerial survey data. Build high-quality, high-precision 3D real-scene GIS models in batches.
Product application (function): Mid-dimensional space 3D real-life tilt modeling technology has been widely used in urban planning and transformation; smart city construction; smart real estate buildings; fire emergency rescue; engineering exploration surveying and mapping; smart park visualization, water conservancy facility protection, etc. application.
1. All-round real-world display The
three-dimensional model of oblique photography is a real-world model. The relationship between ground attachments and structures is very accurate, and the surface texture and color are consistent with the actual situation. By browsing the real scene model, you can easily understand the scope of the entire project and form an intuitive impression of the entire project.
2. Real-time measurement The
3D model of oblique photography has high accuracy, the model resolution is better than 0.05m, and can directly measure the height, length, area, angle, slope, etc. based on the model.
3. The
original data of urban planning and transformation are retained and the original data of urban construction is retained for easy updating; the facade transformation design unit works directly to facilitate the statistics of the transformation workload; the house demolition avoids rush construction and construction, which is convenient for statistics compensation and compensation; house planning and new construction collaborative planning Design, communicate, display and report intuitively; 3D visualized management of underground pipe network.
4.
The combined application of water conservancy and hydropower three-dimensional real-world model and BIM realizes the perfect integration of informatization and visualization. Design information and design files can be connected synchronously, collision check, comprehensive review, roaming browsing and animation output can be performed on the design plan. Have a comprehensive and intuitive understanding of the overall and detailed aspects of the project.
5. Complicated terrain surveying and mapping, earthwork calculation and auxiliary design
Complicated terrain earthwork calculation
In the exploration stage, the topographic survey time can be reduced from the main period of the topographic survey to the 10 simultaneous derivation of the earthwork volume, which improves efficiency and avoids errors.
Complicated terrain surveying and design assistance
Using unmanned aerial vehicle technology to replace traditional surveying and mapping methods, carry out convenient data collection on the terrain of the mountainous area or the city’s Fudong, and assist the design institute.
Article source: Mid-dimensional space- three-dimensional real-world modeling