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High-Rise Building 3D Reconstruction with the Wrapped Interferometric Phase.
1School of Automation, Northwestern Polytechnical Universtiy, Xi'an 710129, China. gr2003@nwpu.edu.cn.
Sensors (Basel, Switzerland)
|March 27, 2019
Summary
This study reconstructs 3D building information using interferometric SAR (InSAR) phase images, focusing on high-rise urban structures. The method effectively detects building facades and extracts 3D data from layover fringe patterns in VHR SAR images.
Area of Science:
- Geosciences
- Remote Sensing
- Photogrammetry
Background:
- High-resolution SAR systems, particularly InSAR, offer advanced capabilities for urban infrastructure monitoring.
- Urban areas commonly feature high-rise buildings, necessitating 3D information retrieval for remote sensing applications.
Purpose of the Study:
- To develop and validate a method for 3D reconstruction of high-rise buildings using InSAR wrapped phase images.
- To address geometric modulations like layover in very high resolution (VHR) SAR data.
Main Methods:
- Building detection and facade extraction using local frequency analysis of layover fringe patterns, assuming a rectangular building shape.
- 3D information extraction based on the geometry of detected building facades.
- Utilized TanDEM-X data for a small urban area and Chinese airborne N-SAR data for a wide urban scene.
Main Results:
- Successful detection of high-rise buildings and extraction of their facades from InSAR data.
- Demonstrated the feasibility of retrieving 3D building information from layover fringe patterns.
- Validated the approach on both small and wide urban scenes using different InSAR datasets.
Conclusions:
- The proposed method effectively reconstructs the 3D information of high-rise buildings using InSAR wrapped phase images.
- The approach is applicable to various urban scenes and InSAR data, showing potential for urban remote sensing.
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