智能测绘多源时空数据实时一体化建模系统
The intelligent surveying and mapping multi-source spatiotemporal data real-time integrated modeling system utilizes multispectral imagery and positioning attitude data to generate high-precision vector models of building facade window openings, solving the problem of difficulty in separating shadows from entity edges in existing technologies and improving the automation and accuracy of surveying and mapping modeling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ZIBO JINZHAI SURVEYING & MAPPING CO LTD
- Filing Date
- 2026-01-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing digital mapping methods for building facades are insufficient in the accuracy of image interpretation when dealing with features such as deep recessed window openings and high-reflectivity glass curtain walls. This leads to distortion in contour extraction, affecting the geometric accuracy of facade drawings and 3D models. A large amount of manual intervention is required for correction, which restricts the efficiency and automation level of mapping and modeling.
An intelligent mapping multi-source spatiotemporal data real-time integrated modeling system is adopted. By simultaneously acquiring visible light images and multispectral images, combined with positioning attitude data, a three-dimensional point cloud is generated and the solar vector is corrected to simulate shadows. A multi-dimensional discrimination mechanism is used to separate the real window frame edge and the shadow edge to construct a high-precision window opening vector model.
It achieves high-precision and automated separation of building structure lines and shadow edges, generates accurate window opening vector models, improves the geometric accuracy and automation level of facade surveying, adapts to different lighting conditions, and reduces labor costs.
Smart Images
Figure CN121810947B_ABST