Method and device for constructing a three-dimensional solid model based on total information photogrammetry
By employing a full-information photogrammetry method, combined with multi-step aerial triangulation and matching of multi-view oblique images and multi-layer, multi-angle close-up images, the problems of missing texture information and occlusion in the 3D modeling of ancient buildings were solved, achieving high-precision digital reconstruction of ancient buildings.
Patent Information
- Application Number
- CN202310775920.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-28
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2043-06-28
AI Technical Summary
Existing 3D modeling technologies suffer from issues such as missing texture information and occlusion in the reconstruction of ancient buildings. Furthermore, the difference in coordinate systems during the fusion of multi-source data leads to matching failures, making it difficult to meet the requirements for detailed modeling of ancient buildings.
Using a full-information photogrammetry method, dense point cloud data is constructed through multi-step aerial triangulation and multi-view matching of aerial multi-view oblique images, near-ground outer multi-angle close-up images, and near-ground inner multi-angle close-up images, and finally a high-precision three-dimensional solid model is generated.
It solves the stability problem in multi-source image fusion, improves the texture details and positional accuracy of 3D models, and is suitable for fine modeling of complex ancient buildings. In particular, it solves the problems of texture discontinuity and occlusion in traditional methods, and realizes high-precision digital reconstruction of ancient buildings.