JERAJournal of Electronic Research and Application2208-35022208-3510Bio-Byword Scientific Publishing Pty. Ltd.10.26689/jera.v9i2.9994ArticleUrban Hydrological Extraction Based on Otsu Threshold: A Case Study in Zhejiang Province, China https://artdesignp.com/journal/JERA/9/2/10.26689/jera.v9i2.9994HuLijun,ZhengXunyuan,QiYizhong,LiuLiang,SunHongyu,ChenJiahui,PengLing,HanYinghui2025922025-04-02This work uses advanced remote sensing to precisely extract hydrological information, supporting transmission network planning. High-resolution water body mapping lets designers optimize routes to avoid ecologically sensitive areas, achieving environmental protection, cost efficiency, and enhanced operational safety. The methodology provides a scalable, replicable framework for intelligent obstacle avoidance in power grid development, applicable to other regions and sectors with similar planning needs.

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