Optics & Imaging
| Wed 10 Jun 2026
Beijing, June 10 -- Beijing Dadi Hongtu Survey Tech Co Ltd has filed a patent application for Urban Topographic Surveying and Mapping Method Based on Image Analysis. This invention was developed by Liu Gang, Guo Zhiyong, Jia Yunpeng, Zhao Longfeng, Ni Youlong, Chang Wei, Zhang Mingxing, Yao Sijia, Cao Hongliang and Wei Laiyang.
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