Dynamic updating method for three-dimensional live-action data of large scene

Abstract

The invention discloses a dynamic updating method for three-dimensional live-action data of a large scene. The method comprises the following steps of sequentially performing coordinate conversion framing and spatial coding on the effective three-dimensional live-action data to be input and updated, calculating an effective range, and performing data fusion updating according to spatial coding andthe effective range to realize dynamic updating of the three-dimensional live-action data; according to the invention, full automation of the dynamic updating process is truly realized, the risk of errors caused by manual operation is reduced, the cost of data management is reduced, and the invention is suitable for dynamic updating of three-dimensional live-action data of a large scene; standardized processing of various three-dimensional live-action data is achieved, and the method can adapt to various types of three-dimensional live-action data produced by different software and differententerprises and has extremely high adaptability. More importantly, organic fusion of the historical three-dimensional live-action data and the effective three-dimensional live-action data to be inputand updated is realized, and high quality and high precision of the data are ensured.

Description

technical field [0001] The invention relates to the technical fields of digital twin city construction and geospatial data management, and specifically relates to a dynamic update method for three-dimensional real scene data of large scenes. Background technique [0002] Digital Twin (Digital Twin) is a comprehensive use of computer vision, Internet of Things, artificial intelligence, 5G and other technologies to spatialize and digitize all elements of the physical world, such as people, objects, and events, and realize the true mapping of the physical world and the twin world. A city built by digital twin technology is called a digital twin city, which is an important facility and basic capability to realize the construction of a smart city. The three-dimensional spatial model of the city is one of the key contents of the digital twin city construction. The current mainstream solution is to use technologies such as oblique photography and laser scanning to realize the real-...

AI Technical Summary

Problems solved by technology

The technical difficulties of dynamic update of 3D real scene data in large scenes lie in: 1) large amount of data, scattered data (consisting of many small files), difficult to quickly retrieve and locate data; The size of the tiles is different, the coordinate system is different, and the origin of the coordinates is different; 3) The internal structure of the data is complex, which makes it difficult to achieve real fusion of data from different sources, and the quality and accuracy of the fusion results cannot be guaranteed

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