如何从人类的角度最好地绘制绿色地图?比较计算测量与人类感知

IF 2.4 Q3 ENVIRONMENTAL SCIENCES
Jussi Torkko, A. Poom, Elias S Willberg, T. Toivonen
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引用次数: 1

摘要

城市绿化已被证明会影响我们城市化社会的生活质量。传统上,绿化是自上而下绘制的,而从街道水平绘制绿化地图的替代计算方法已经出现,以模仿人类的视线。尽管这些新颖的测绘方法多种多样,但它们在多大程度上反映了人类在现实中的感知仍然不清楚。我们在芬兰首都赫尔辛基随机选择的研究地点,将一系列新颖和传统的测绘方法与自我报告的城市绿化感知进行了比较。制图方法既包括基于图像分割和点云的人类视角制图方法,也包括传统的自上而下视角制图方法,即基于土地覆盖和遥感的制图方法。结果表明,所有测试的方法都与人类对街道绿化的感知密切相关。然而,绘制的绿化值始终低于感知值。我们的研究结果支持使用语义图像分割方法比颜色分割方法更接近人类感知的绿色植物提取。在数据覆盖有限的情况下,基于点云的方法和自上而下的方法可以作为图像分割的替代方法。研究结果表明,在不同的时空条件下如何模拟人类视角需要进一步的研究。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
How to best map greenery from a human perspective? Comparing computational measurements with human perception
Urban greenery has been shown to impact the quality of life in our urbanizing societies. While greenery is traditionally mapped top-down, alternative computational approaches have emerged for mapping greenery from the street level to mimic human sight. Despite the variety of these novel mapping approaches, it has remained unclear how well they reflect human perception in reality. We compared a range of both novel and traditional mapping methods with the self-reported perception of urban greenery at randomly selected study sites across Helsinki, the capital of Finland. The mapping methods included both image segmentation and point cloud-based methods to capture human perspective as well as traditional approaches taking the top-down perspective, i.e., land cover and remote sensing-based mapping methods. The results suggest that all the methods tested are strongly associated with the human perception of greenery at the street-level. However, mapped greenery values were consistently lower than the perceived values. Our results support the use of semantic image segmentation methods over color segmentation methods for greenery extraction to be closer to human perception. Point cloud-based approaches and top-down methods can be used as alternatives to image segmentation in case data coverage for the latter is limited. The results highlight a further research need for a comprehensive evaluation on how human perspective should be mimicked in different temporal and spatial conditions.
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来源期刊
CiteScore
4.00
自引率
7.10%
发文量
176
审稿时长
13 weeks
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