基于地方志文本挖掘和图像特征提取的区域要素符号化

IF 2.8 3区 地球科学 Q2 COMPUTER SCIENCE, INFORMATION SYSTEMS
Lili Wu, Di Cao, Jinjin Yang, Ruoyi Zhang, Xinran Yan
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引用次数: 0

摘要

在信息时代的背景下,区域要素的符号化已成为现代制图实践的重要组成部分。有针对性地识别区域要素和设计地图符号是实现区域要素符号化的前提。因此,我们提出了一种结合文本分析和图像处理的区域要素符号化方法。首先,以地方志为文本信息源,通过文本数据挖掘提取区域要素。其次,选取要素的真实图像数据,利用图像分割算法、聚类算法等从图像中提取轮廓和颜色,并进行相应的符号简化和颜色匹配,创建出识别度较高的符号。最后,将符号应用于专题地图和旅游地图两种地图类型,并设计问卷对符号设计成果进行评估。经过深入研究发现,该方法在数据源权威性、符号生成效率和符号信息承载等方面均优于相关符号化研究。总之,本研究以跨学科思维为指导,将理论分析与设计实践有效结合,提出了符号化的新思路,为地理信息可视化开辟了一条新途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Symbolization of Regional Elements Based on Local-Chronicle Text Mining and Image-Feature Extraction
In the context of the information age, the symbolization of regional elements has become a crucial component in modern cartographic practice. The targeted identification of regional elements and the design of map symbols are prerequisites for realizing the symbolization of regional elements. Therefore, we propose a method to symbolize regional elements by combining textual analysis and image processing. Firstly, local chronicles are used as the textual information source, and regional elements are extracted through textual data mining. Second, the real image data of the elements are selected, and the image segmentation algorithm, clustering algorithm, etc., are used to extract contours and colors from the images and carry out corresponding symbol simplification and color matching, to create highly recognizable symbols. Finally, we apply the symbols to two map types: the thematic map and the tourist map, and design a questionnaire to evaluate the outcomes of the symbol design. After a thorough review, it has been found that the method is superior to related symbolization studies in terms of data source authority, symbol generation efficiency, and symbol information carrying. In conclusion, guided by interdisciplinary thinking, this study effectively combines theoretical analysis and design practice, proposes a new idea of symbolization, and opens up a new way for geographic information visualization.
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来源期刊
ISPRS International Journal of Geo-Information
ISPRS International Journal of Geo-Information GEOGRAPHY, PHYSICALREMOTE SENSING&nb-REMOTE SENSING
CiteScore
6.90
自引率
11.80%
发文量
520
审稿时长
19.87 days
期刊介绍: ISPRS International Journal of Geo-Information (ISSN 2220-9964) provides an advanced forum for the science and technology of geographic information. ISPRS International Journal of Geo-Information publishes regular research papers, reviews and communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. The 2018 IJGI Outstanding Reviewer Award has been launched! This award acknowledge those who have generously dedicated their time to review manuscripts submitted to IJGI. See full details at http://www.mdpi.com/journal/ijgi/awards.
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