城市影像的智能计算表征

Intelligent Computational Representation of Urban Imagery

  • 摘要: 城市影像能够详尽刻画城市物理环境,支持从全球到微观层面的多尺度分析。基于高效的特征工程方法,从庞大且复杂的城市影像像素数据中提取高层次语义特征,用于模式识别和决策支持,一直是城市研究的重要方向。相较于传统的语义要素表征,我们发现,表示学习支持下的计算表征方法能够从城市影像中学习高维深度特征。这些特征不仅提炼了更丰富的城市语义与结构信息,还促进了多模态数据融合和更精准、鲁棒的城市模型构建。特别地,基于自监督学习的智能计算表征,能够在无需标注数据的情况下,自动编码与城市任务相关的关键信息,进一步提升了城市影像分析的自动化水平。本文通过探讨城市影像智能计算表征的特点、发展历程及其可解释性,指出该方法有望显著提升城市智能化分析能力,从而为城市研究、规划、管理和可持续发展提供更精准的支持。

     

    Abstract: Urban imagery provides a detailed representation of the physical environment of cities, enabling multi-scale analysis ranging from global perspectives to microscopic details. Extracting high-level semantic features from the vast and complex pixel data of urban imagery—through efficient feature engineering methods—for applications in pattern recognition and decision-making support has long been a critical focus in urban studies. Compared to traditional approaches that rely on manually defined semantic element representations, we find that computational representation methods supported by representation learning can extract high-dimensional deep features from urban imagery. These features not only capture richer urban semantic and structural information but also facilitate multi-modal data integration and the development of more accurate and robust urban models. Notably, intelligent computational representations based on self-supervised learning stand out, as they can autonomously encode task-centric key information without the need for labeled data, thereby advancing the automation of urban imagery analysis. This paper explores the characteristics, evolutionary trajectory, and interpretability of intelligent computational representations in urban imagery, highlighting their potential to significantly enhance the capabilities of intelligent urban analysis. Consequently, these advancements offer more precise and reliable support for urban research, planning, management, and sustainable development.

     

/

返回文章
返回