Cartography and Geographic Information Science最新文献_第10页

Urban infrastructure audit: an effective protocol to digitize signalized intersections by mining street view images 城市基础设施审计：通过挖掘街景图像实现信号交叉口数字化的有效协议

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-11-16 DOI: 10.1080/15230406.2021.1992299

Xiao Li, H. Ning, Xiao Huang, B. Dadashova, Yuhao Kang, Andong Ma

{"title":"Urban infrastructure audit: an effective protocol to digitize signalized intersections by mining street view images","authors":"Xiao Li, H. Ning, Xiao Huang, B. Dadashova, Yuhao Kang, Andong Ma","doi":"10.1080/15230406.2021.1992299","DOIUrl":"https://doi.org/10.1080/15230406.2021.1992299","url":null,"abstract":"ABSTRACT Auditing and mapping traffic infrastructure is a crucial task in urban management. For example, signalized intersections play an essential role in transportation management; however, effectively identifying these intersections remains unsolved. Traditionally, signalized intersection data are manually collected through field audits or checking street view images (SVIs), which is time-consuming and labor-intensive. This study proposes an effective protocol to identify signalized intersections using road networks and SVIs. First, we propose a six-step geoprocessing model to generate an intersection feature layer from road networks. Second, we utilize up to three nearest SVIs to capture streetscapes at each intersection. Then, a deep learning-based image segmentation model is adopted to recognize traffic light-related pixels from each SVI. Last, we design a post-processing step to generate new features characterizing SVIs’ segmentation results at each intersection and build a decision tree model to determine the traffic control type. Results demonstrate that the proposed protocol can effectively identify signalized intersections with an overall accuracy of 97.05%. It also proves the effectiveness of SVIs for auditing urban infrastructures. This study can directly benefit transportation agencies by providing a ready-to-use smart audit and mapping solution for large-scale identification and mapping of signalized intersections.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"49 1","pages":"32 - 49"},"PeriodicalIF":2.5,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44104138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Population downscaling using high-resolution, temporally-rich U.S. property data 人口缩减使用高分辨率，时间丰富的美国房地产数据

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-11-16 DOI: 10.1080/15230406.2021.1991479

Heng Wan, Jim Yoon, Vivek Srikrishnan, Brent Daniel, D. Judi

{"title":"Population downscaling using high-resolution, temporally-rich U.S. property data","authors":"Heng Wan, Jim Yoon, Vivek Srikrishnan, Brent Daniel, D. Judi","doi":"10.1080/15230406.2021.1991479","DOIUrl":"https://doi.org/10.1080/15230406.2021.1991479","url":null,"abstract":"ABSTRACT Multi-temporal and spatially explicit population data are vital in many fields, such as demography, urban planning, disaster prevention,economics, and environmental modeling. Population data used in these studies are typically aggregated at census enumeration units, which are too coarse for many applications. Accurate population downscaling methods are needed to obtain population data at finer spatial resolutions. We use a novel settlement-related database, Built-Up Property Records (BUPR) from the Historical Settlement Data Compilation for the United States (HISDAC-US) to downscale population from census tracts to block groups. The BUPR dataset provides the number of built-up property records for each 250-m grid at 5-year temporal resolution from 1810 to 2015 for most contiguous United States (CONUS). The ability of BUPR to downscale population from census tracts to block groups for four states, representing a range of population densities, is evaluated here by comparing against other commonly-used ancillary datasets. The BUPR-based method outperforms all other methods in all but one state with highly-incomplete BUPR. A more detailed accuracy assessment is performed by dividing each state into low, medium, and high population density categories. The BUPR method produces more accurate downscaled population estimates for low and medium categories, though its performance deteriorates in the high density category due to its relatively coarse spatial resolution. BUPR-based dasymetric mapping is subsequently applied to the CONUS and found to generalize well beyond the four comparison states with high downscaling accuracy. The long-term record of the HISDAC-US dataset enables the potential construction of fine-grained population data back to 1810.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"49 1","pages":"18 - 31"},"PeriodicalIF":2.5,"publicationDate":"2021-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47066728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

A methodology for balancing the preservation of area, shape, and topological properties in polygon-to-raster conversion 一种在多边形到栅格转换中平衡保存面积、形状和拓扑属性的方法

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-11-10 DOI: 10.1080/15230406.2021.1991478

Xiao-Jiao Huo, Chen Zhou, Yunyun Xu, Manchun Li

{"title":"A methodology for balancing the preservation of area, shape, and topological properties in polygon-to-raster conversion","authors":"Xiao-Jiao Huo, Chen Zhou, Yunyun Xu, Manchun Li","doi":"10.1080/15230406.2021.1991478","DOIUrl":"https://doi.org/10.1080/15230406.2021.1991478","url":null,"abstract":"ABSTRACT Polygon-to-raster conversion inevitably introduces a loss in spatial properties of polygons, such as area or topology, which should be preserved. Existing methods preserve only one property, resulting in greater losses in other properties. In this study, we propose a new methodology to balance the preservation of area, shape, and topological properties during conversion. By reassigning cells of the rasterized outcome, the method first compensates for the loss in shape properties. Topological changes are then corrected by comparing the topological relations of raster regions and their corresponding polygons. Finally, the areas between pairs of neighboring regions are coordinated to maintain area properties. The main contribution of this study relies on the fact that the presented method considers the interactions of different properties, rather than separately preserving each of them. We employed a land-use dataset containing 14,000 polygons for our experiments. When the cell size increased from 5 to 25 m, the presented method resolved 48.4% of overall rasterization errors on average, which was much higher than those of the area-, shape-, and topology-preserving methods (i.e. 2.6%, 26.7%, and 34./0%, respectively). However, the presented method increased the computational time by 579%, 264%, and 52%, respectively, as compared with these three methods.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"49 1","pages":"115 - 133"},"PeriodicalIF":2.5,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44146267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Adaptive transfer of color from images to maps and visualizations 从图像到地图和可视化的色彩自适应转移

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-11-10 DOI: 10.1080/15230406.2021.1982009

Mingguang Wu, Yanjie Sun, Yaqian Li

{"title":"Adaptive transfer of color from images to maps and visualizations","authors":"Mingguang Wu, Yanjie Sun, Yaqian Li","doi":"10.1080/15230406.2021.1982009","DOIUrl":"https://doi.org/10.1080/15230406.2021.1982009","url":null,"abstract":"ABSTRACT Because crafting attractive and effective colors from scratch is a high-effort and time-consuming process in map and visualization design, transferring color from an inspiration source to maps and visualizations is a promising technique for both novices and experts. To date, existing image-to-image color transfer methods suffer from ambiguities and inconsistencies; no computational approach is available to transfer color from arbitrary images to vector maps. To fill this gap, we propose a computational method that transfers color from arbitrary images to a vector map. First, we classify reference images into regions with measures of saliency. Second, we quantify the communicative quality and esthetics of colors in maps; we then transform the problem of color transfer into a dual-objective, multiple-constraint optimization problem. We also present a solution method that can create a series of optimal color suggestions and generate a communicative quality-esthetic compromise solution. We compare our method with an image-to-image method based on two sample maps and six reference images. The results indicate that our method is adaptive to mapping scales, themes, and regions. The evaluation also provides preliminary evidence that our method can achieve better communicative quality and harmony.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"49 1","pages":"289 - 312"},"PeriodicalIF":2.5,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45006531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

An extended spatiotemporal exposure index for urban racial segregation 城市种族隔离的扩展时空暴露指数

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-11-02 DOI: 10.1080/15230406.2021.1965915

Qingsong Liu, Mengmeng Liu, X. Ye

{"title":"An extended spatiotemporal exposure index for urban racial segregation","authors":"Qingsong Liu, Mengmeng Liu, X. Ye","doi":"10.1080/15230406.2021.1965915","DOIUrl":"https://doi.org/10.1080/15230406.2021.1965915","url":null,"abstract":"ABSTRACT The Segregation Index quantifies the degree of segregation of social groups or classes. Because of the increasing use of fine-grained spatiotemporal activity and flow data, the conventional segregation measurements’ inclusiveness is challenged. We add population flow to the conventional place-based spatial exposure index to identify spatiotemporal segregation changes. Specifically, we considered the population-flow network, hierarchical structure, and time. In Chicago’s demonstration case study, we first used the time-dependent Twitter Origin-Destination flow matrices and their hierarchical structure information to estimate interactions between areal units at the neighborhood level. Then we computed the new population composition of units based on their interactions with other units and estimated the proposed spatiotemporal exposure index for different times. Finally, we systematically compared their differences with the conventional indices at global and local scales to see how population-flow patterns affect the exposure index. The results show that the population-flow patterns reflect valuable information in neighborhood interactions in temporal and spatial dimensions, but it is missing information in the conventional segregation computations. Furthermore, we emphasize that the hierarchical structures of flow patterns and the choice of appropriate parameters are also important factors for a rational segregation evaluation.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"48 1","pages":"530 - 545"},"PeriodicalIF":2.5,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46344262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Semantic conflation in GIScience: a systematic review gisscience中的语义合并:系统回顾

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-11-02 DOI: 10.1080/15230406.2021.1952109

L. VILCHES-BLÁZQUEZ, José Ángel Ramos

{"title":"Semantic conflation in GIScience: a systematic review","authors":"L. VILCHES-BLÁZQUEZ, José Ángel Ramos","doi":"10.1080/15230406.2021.1952109","DOIUrl":"https://doi.org/10.1080/15230406.2021.1952109","url":null,"abstract":"ABSTRACT Manifold providers from a wide range of initiatives (private organizations, volunteered efforts, social media, etc.) offer enormous data amounts with geospatial characteristics. These efforts of many data providers entail multiple data scenarios and imply many viewpoints about the same feature, involving different representations, accuracy, models, vocabularies, etc. Various techniques or processes are employed to deal with these heterogeneity problems related to diverse data sources within the conflation research area. However, semantic conflation has not been addressed widely in the literature, unlike geometrical conflation. Hence, it is unclear what issues semantic conflation tries to solve and what activities, methods, metrics, and techniques have been used in existing GIScience investigations. In this article, we carry out a systematic review of approaches that focus on semantic aspects for geospatial data conflation. Besides, we analyze a wide selection of contributions following different criteria to depict a detailed semantic conflation status in GIScience. Our contributions are: (i) an overview of semantic conflation application domains, (ii) a characterization of semantic issues within these domains, (iii) the recognition of gaps and weaknesses of collected researches, and (iv) several open challenges and opportunities for next steps in this GIScience research area.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"48 1","pages":"512 - 529"},"PeriodicalIF":2.5,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46802045","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Choose your own route – supporting pedestrian navigation without restricting the user to a predefined route 选择您自己的路线-支持行人导航，而不限制用户到预定义的路线

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-10-28 DOI: 10.1080/15230406.2021.1983731

Haosheng Huang, Thomas Mathis, R. Weibel

{"title":"Choose your own route – supporting pedestrian navigation without restricting the user to a predefined route","authors":"Haosheng Huang, Thomas Mathis, R. Weibel","doi":"10.1080/15230406.2021.1983731","DOIUrl":"https://doi.org/10.1080/15230406.2021.1983731","url":null,"abstract":"ABSTRACT State-of-the-art mobile pedestrian navigation systems often employ GPS or other positioning methods for continuous tracking of users, and thus provide them with in-situ turn-by-turn route guidance along a desired route. However, studies have shown that user experience and acquisition of spatial knowledge decrease due to the “blind” following of such turn-by-turn navigation systems. This paper proposes a novel interface concept for mobile pedestrian navigation systems that provide navigation guidance without restricting the users to a predefined route. Specifically, the proposed novel user interface was based on the concept of the Potential Route Area (PRA), which defines a dynamic area consisting of all potential routes not longer than a certain detour the user is willing to accept. Within that area, the user can freely choose his/her own route and alter it anytime, and can still arrive at the destination within the desired detour tolerance. As a proof of concept, the proposed PRA-based system was then tested against a conventional turn-by-turn navigation system, represented by Google Maps, in a real-world navigation experiment, which revealed that the acquisition of spatial knowledge and user experience were substantially improved when using the PRA-based system. This can be explained by the fact that the PRA-based system provides its users with more freedom in choosing their own route.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"49 1","pages":"95 - 114"},"PeriodicalIF":2.5,"publicationDate":"2021-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44355827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7

Identifying map users with eye movement data from map-based spatial tasks: user privacy concerns 利用基于地图的空间任务的眼动数据识别地图用户:用户隐私问题

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-10-06 DOI: 10.1080/15230406.2021.1980435

Hua Liao, Weihua Dong, Zhicheng Zhan

{"title":"Identifying map users with eye movement data from map-based spatial tasks: user privacy concerns","authors":"Hua Liao, Weihua Dong, Zhicheng Zhan","doi":"10.1080/15230406.2021.1980435","DOIUrl":"https://doi.org/10.1080/15230406.2021.1980435","url":null,"abstract":"ABSTRACT Individuals with different characteristics exhibit different eye movement patterns in map reading and wayfinding tasks. In this study, we aim to explore whether and to what extent map users’ eye movements can be used to detect who created them. Specifically, we focus on the use of gaze data for inferring users’ identities when users are performing map-based spatial tasks. We collected 32 participants’ eye movement data as they utilized maps to complete a series of self-localization and spatial orientation tasks. We extracted five sets of eye movement features and trained a random forest classifier. We used a leave-one-task-out approach to cross-validate the classifier and achieved the best identification rate of 89%, with a 2.7% equal error rate. This result is among the best performances reported in eye movement user identification studies. We evaluated the feature importance and found that basic statistical features (e.g. pupil size, saccade latency and fixation dispersion) yielded better performance than other feature sets (e.g. spatial fixation densities, saccade directions and saccade encodings). The results open the potential to develop personalized and adaptive gaze-based map interactions but also raise concerns about user privacy protection in data sharing and gaze-based geoapplications.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"49 1","pages":"50 - 69"},"PeriodicalIF":2.5,"publicationDate":"2021-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48649096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

A variation on the Chamberlin trimetric map projection 张伯伦立体地图投影的变体

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-09-29 DOI: 10.1080/15230406.2021.1975571

Brenton R. S. Recht

引用次数: 0

Developing reliably distinguishable color schemes for legends of natural resource taxonomy-based maps 为基于自然资源分类的地图图例开发可靠可区分的配色方案

IF 2.5 3区地球科学

Cartography and Geographic Information Science Pub Date : 2021-09-03 DOI: 10.1080/15230406.2021.1942218

V. Vlad, M. Toti, S. Dumitru, C. Simota, M. Dumitru

{"title":"Developing reliably distinguishable color schemes for legends of natural resource taxonomy-based maps","authors":"V. Vlad, M. Toti, S. Dumitru, C. Simota, M. Dumitru","doi":"10.1080/15230406.2021.1942218","DOIUrl":"https://doi.org/10.1080/15230406.2021.1942218","url":null,"abstract":"ABSTRACT The legends of natural resource taxonomy-based maps (e.g. soil, geological, geomorphological, vegetation, and land cover/land use) need many different distinguishable colors. The existing methods of color selection for map legends are based on the designer subjectivity, ensuring schemes having few colors. An analysis of the modeling and management of colors in digital applications has led to define an algorithm to calculate an objective colorimetric measure of color difference – “DE*ab ” – based on the perceptually uniform color model CIELAB. The proposed method consists of a set of specific rules for developing hierarchically structured color schemes and a specific procedure for ensuring selection of a large number of reliably distinguishable colors, based on a color difference threshold. The accuracy of color reproduction in printing processes is also taken into account. The method has been applied to develop a standard of colors for soil maps. It contains 63 colors and has been used for developing a soil map having 41 standard colors. A user test of the method results proved that thresholds of 10 DE*ab units and 15 DE*ab units ensure obtaining acceptably distinguishable colors for displaying/printing maps by using high-quality, respectively, current devices. Three datasets that support the research are given.","PeriodicalId":47562,"journal":{"name":"Cartography and Geographic Information Science","volume":"48 1","pages":"393 - 416"},"PeriodicalIF":2.5,"publicationDate":"2021-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48868364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2