Towards a framework for point-cloud-based visual analysis of historic gardens: Jichang Garden as a case study

Y. Peng*, Guanting Zhang, S. Nijhuis, G. Agugiaro, J.E. Stoter

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Historic gardens, regarded as a significant genre of cultural heritage, encapsulate the enduring essence of bygone eras while concurrently transcending temporal boundaries to resonate with the present and future. These gardens provide us vitality and inspiration, holding a collective repository of human memory and serving as a testament to our shared heritage. However, like landscapes, gardens constantly change through natural processes and human interventions. How can we preserve these gardens, though changes are unavoidable? Spatial and visual characteristics are the gardens' essential characteristics, and point-cloud (LiDAR) technologies are powerful tools to reveal and analyze gardens’ spatial-visual relationships and characteristics. Therefore, this paper aims to present a point-cloud-based approach to identifying spatial-visual design principles and making them operational to protect and develop historic gardens. Additionally, several methods have been proposed in this research, including (a) a voxel-based method to transfer points into a solid model for GIS-based computation, (b) a novel method to analyze the field of view (FOV), and (c) a systemic framework to reveal historic gardens’ spatial-visual characteristics based on the voxelized model. Jichang Garden, a historic garden in Wuxi, China, known for its visual design and spatial arrangement, has been selected as a case study to showcase how to apply the methods proposed by this paper. The findings include the design principles for the water body, the arrangement for a route, and the planting strategies of the garden. The conservational strategies have been formed based on the findings, and the appliable potentials and limitations of the methods have also been discussed.
Original languageEnglish
Article number128159
Number of pages12
JournalUrban Forestry and Urban Greening
Volume91
DOIs
Publication statusPublished - 2024

Keywords

  • Spatial analysis
  • Jichang Garden
  • Heritage gardens
  • LiDAR
  • GIS

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