A method and device for displaying large-scale three-dimensional reconstruction scene in real time

Abstract

The invention discloses a method and equipment for displaying large-scale three-dimensional reconstruction scenes in real time. The method comprises the following steps of: taking a point cloud model or triangular mesh model of a large-scale three-dimensional reconstruction scene as input data; constructing multilayer detail model data of the three-dimensional scene through forked tree processing; and reading corresponding model data by a processor of the equipment to be processed according to the method, and outputting the processing result to a display interface in real time to be displayed. According to the method, data is processed through a forked tree, the processing speed is at an index level, so that the limits of computer memories can be overcome, the point cloud or triangular mesh-based large-scale three-dimensional reconstruction scenes can be displayed in real time, and a favorable interaction function is provided. The method and the equipment are not limited to three-dimensionally reconstructed scene models, are also suitable for the other three-dimensional point cloud or triangular mesh models with large data volumes, and have strong theoretical significance and broad application prospect.

Description

technical field [0001] The invention belongs to the field of three-dimensional display, and in particular relates to a display method and system based on a large-scale three-dimensional reconstruction scene. Background technique [0002] In computer vision, 3D reconstruction refers to the process of reconstructing 3D information from single-view or multi-view images. Due to the incomplete information of a single view, 3D reconstruction based on a single view requires the use of empirical knowledge. The 3D reconstruction of multi-view is relatively easy, and its process is similar to the binocular positioning of people. The common method is to calibrate the camera first, that is, calculate the relationship between the 2D image coordinate system of the camera and the world coordinate system, and then use multiple The information in a two-dimensional image is used to reconstruct the three-dimensional information. [0003] Among the existing 3D reconstruction methods, the 3D r...

AI Technical Summary

Problems solved by technology

Due to the limitations of storage and computing power, some common 3D software, such as MeshLab, 3DMAX, Maya, AutoCAD, UG, etc., are difficult to display or perform real-time interactive operations on these large-scale 3D reconstruction scenes

Even though the rapid development of GPU has solved the problem of fast drawing to a certain extent, due to the limitation of memory and other factors, for large-scale scenes with several G and several T data, it is difficult to realize real-time display or real-time interactive operation. still out of reach

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