CN 11-5366/S     ISSN 1673-1530
“风景园林,不只是一本期刊。”

街道绿化品质的人本视角测度框架—基于百度街景数据和机器学习的大规模分析

Measuring Street Greening Quality from Humanistic Perspective: A Large-scale Analysis Based on Baidu Street View Images and Machine Learning Algorithms

  • 摘要: 新技术条件下测度街道绿化品质,实现人眼视角绿化可见度与街道可达性的整合分析。抓取上海的大规模街景数据,基于机器学习算法提取绿化可见度,将其与基于空间网络分析的街道可达性开展叠合分析,并与基于卫星遥感影像的绿化率比较,发现绿化率难以准确展现市民日常生活中绿化接触度。运用新技术和新数据推动精细化规划导控,实践上能实现大规模分析并保证高精度结果,理论上能为规划政策的人本视角转型提供支撑。

     

    Abstract: This paper proposed an approach for quantifying daily exposure of urban residents to eye-level greenery. 280,000 street view images in Shanghai central area are collected for greenery analyses via machine learning. The integration of the street greenery with street accessibility helps to provide detailed guidance for better spatial quality on streets and efficient urban greenery planning. The comparison between this new index and the traditional urban green cover shows that the latter one might not accurately reflect accessed greenery for citizens. This study helps to achieve the co-present of large-scale but also high-resolution analysis. Moreover, it makes a step forward for a more human-centered planning policy.

     

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