Linear cultural heritage landscape visual perception location model and demonstration
Received date: 2023-06-05
Revised date: 2023-09-18
Online published: 2024-01-19
Supported by
Social Science Foundation of Hebei Province(HB21SH001)
Appropriate visual perception location is a necessary condition for marvellous landscape experience, and rich visual perception spatial information resources will be helpful for exploring the overall perception of beautiful places. Linear cultural heritage not only contains rich resource value and profound cultural heritage assets, but also has important values in the attributes of visual landscape resources. However, the ability of the GIS viewshed computation results to characterize the visual relationship between the visual location and landscape semantics is insufficient for further carrying out the deep value mining of visual landscape resources. Based on the existing methods of landscape visual perception calculation, this study designed the landscape visual perception location model (LVPLM) for linear cultural heritage, and developed the organization method and application logic of the LVPLM dataset based on the NetCDF multidimensional raster data structure. The LVPLM dataset expresses the visual perceptual location through the two-dimensional geographic coordinates and the semantic information of the target landscape through the semantic feature point coding, and then constructs the visual relationship between the visual perceptual location and the landscape semantics, and realizes the information integration of the target landscape, the perceptual location, and the visual state. This study also designed three application modes of the LVPLM dataset, namely "drilling", "slicing", and "dicing", to lay the foundation for multi-modal landscape visual perception information mining and analysis. This study selected the linear cultural heritage landscape resources of the Great Wall for empirical research, established the LVPLM dataset of the Gubeikou Great Wall, and collected visual comparison verification data through field investigation and survey, evaluated the basic credibility of the dataset, initially proved the feasibility and application value of the LVPLM model, and also provided a new data resource for the high-quality construction of the Great Wall National Cultural Park. In addition, the LVPLM model also provides new ideas for the study of the human-environment relationship from the perspective of information expression of interaction perception between humans and the landscape.
SUN Baolei , GUO Fenghua , LI Renjie , CHEN Xinjie . Linear cultural heritage landscape visual perception location model and demonstration[J]. PROGRESS IN GEOGRAPHY, 2024 , 43(1) : 80 -92 . DOI: 10.18306/dlkxjz.2024.01.006
表1 景观语义特征点选取依据与方式Tab.1 Basis and method of landscape semantic feature points selection |
特征点选取依据 | 基本规则 | 取点密度 | 取点高程 |
---|---|---|---|
景观系统层级语义特征 | 对景观系统中具有特定语义信息的各层级子系统进行划分并取点 | 取点间隔一般不低于DEM的2倍分辨率;同时,保证最大化维护景观本体语义特征 | 一般取地表高程加上景观本体部件的相对高度 |
景观形态与结构特征 | 根据景观本体具体形态进行取点,当涉及景观要素规模大、组成复杂时可进一步根据其具体结构取点 | ||
景观类型与功能特征 | 根据景观要素的类型及其具有的特定功能进行取点 |
表2 古北口长城各区段不同类型景观语义特征点编码样例Tab.2 Sample coding of different types of landscape semantic feature points in different sections of the Gubeikou Great Wall |
编码样例 | 区段(代码) | 区位顺序 | 要素类型(代码) | 取点方式 | 编码语义解析 |
---|---|---|---|---|---|
100111 | 司马台(1) | 001 | 墙体(1) | 等间隔取点 | 司马台子系统1号区位墙体特征点 |
102011 | 司马台(1) | 020 | 墙体(1) | 地形拐点 | 司马台子系统20号区位墙体特征点 |
102212 | 司马台(1) | 022 | 敌台(2) | 要素中心点 | 司马台子系统22号区位敌台特征点 |
112412 | 司马台(1) | 124 | 敌台(2) | 要素中心点 | 司马台子系统124号区位敌台特征点 |
200611 | 金山岭(2) | 006 | 墙体(1) | 地形拐点 | 金山岭子系统6号区位墙体特征点 |
211014 | 金山岭(2) | 110 | 铺房(4) | 景观要素中心点 | 金山岭子系统110号区位铺房特征点 |
212213 | 金山岭(2) | 122 | 烽火台(3) | 景观要素中心点 | 金山岭子系统122号区位烽火台特征点 |
220716 | 金山岭(2) | 207 | 关堡(6) | 景观要素中心点 | 金山岭子系统207号区位关堡特征点 |
300912 | 蟠龙山(3) | 009 | 敌台(2) | 景观要素中心点 | 蟠龙山子系统9号区位敌台特征点 |
301215 | 蟠龙山(3) | 012 | 水关(5) | 景观要素中心点 | 蟠龙山子系统12号区位水关特征点 |
312811 | 蟠龙山(3) | 128 | 墙体(1) | 等间隔取点 | 蟠龙山子系统128号区位墙体特征点 |
329013 | 蟠龙山(3) | 290 | 烽火台(3) | 景观要素中心点 | 蟠龙山子系统290号区位烽火台特征点 |
表3 古北口长城LVPLM数据集验证结果Tab.3 Verification results of the LVPLM dataset of the Gubeikou Great Wall |
调研区类型 | 观测点数量/个 | Accuracy1/% | Accuracy2/% | |||||
---|---|---|---|---|---|---|---|---|
平均值 | 最大值 | 最小值 | 平均值 | 最大值 | 最小值 | |||
长城本体调研区 | 27 | 94.55 | 100 | 70.00 | 76.32 | 95.24 | 52.38 | |
长城外围集中调研区 | 60 | 64.28 | 100 | 9.09 | 62.29 | 100 | 9.09 | |
长城外围分散调研区 | 50 | 81.07 | 100 | 0 | 77.73 | 100 | 0 | |
总体 | 137 | 76.37 | 100 | 0 | 70.69 | 100 | 0 |
感谢评审专家对论文概念内涵和验证工作提出的宝贵建议;同时感谢河北师范大学旅游文化地理计算研究组各位研究生在野外验证工作中的贡献。
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