相关实验视频
Updated: Jun 26, 2025
16:14
Trajectory Data Analyses for Pedestrian Space-time Activity Study
Published on: February 25, 2013
13.5K
对于街景图像的开源数据管道:在COVID-19大流行期间对社区流动性的案例研究
Matthew Martell1, Nick Terry1, Ribhu Sengupta1
1Industrial & Systems Engineering, University of Washington, Seattle, WA, United States of America.
PloS one
|May 10, 2024
概括
研究人员开发了一个开源管道,从360度视频中创建街景图像 (SVI),用于纵向分析. 这种方法可以比目前的街景图像 (SVI) 更频繁地收集数据,用于城市环境研究.
科学领域:
- 城市规划和遥感技术
- 地理空间数据分析.
- 环境科学环境科学
背景情况:
- 街景图像 (SVI) 对于城市研究至关重要,包括行人数量估计和环境分析.
- 目前的SVI数据,主要来自谷歌街景,不经常收集,限制时间和纵向研究,特别是在人口较少的地区.
研究的目的:
- 开发一个开源数据管道,从360度视频生成街景图像 (SVI).
- 为了使城市环境的纵向分析能够更频繁地收集数据.
- 在COVID-19大流行期间创建一个新的数据集来研究室外行人交通模式.
主要方法:
- 开发了一个开源管道来处理360度车载视频数据到街景图像 (SVI).
- 在西雅图,华盛顿州,美国,收集了38个月的SVI纵向数据集.
- 在生成的图像中使用行人交通的统计分析验证了管道的输出.
主要成果:
- 管道成功生成了适合纵向分析的街景图像 (SVI).
- 对行人交通的统计分析证实了现有的文献发现,并揭示了新的模式.
- 该研究证明了使用定制收集的SVI数据进行研究的可行性.
结论:
- 开发的数据管道和数据集为纵向城市研究提供了宝贵的资源,克服了现有的街景图像 (SVI) 的局限性.
- 这种方法可以更频繁地收集数据,并对城市动态进行详细分析,例如行人交通.
- 这些方法和数据集代表了SVI用于研究目的的收集和应用的重大进步.
相关概念视频
01:23GIS Software, Hardware, and Sources of GIS Data
57
A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
57
01:29Levels of Use of a GIS
49
Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
49
01:25Selected Data About Geographic Locations
27
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
27
01:18Distance Measurements by Taping
33
Tapes are essential in surveying for accurate, durable, and short-distance measurements. Made from lightweight, nylon-coated steel, they offer flexibility and strength for rugged outdoor use. The nylon coating protects against rust and wear, extending the tape's life. Standard lengths, around 30 meters, are marked in meters and millimeters for precision.Surveyors select tapes based on site conditions and accuracy needs. Lightweight, nylon-coated tapes are commonly used for ease of handling and...
33
01:17Design Example: Alignment of a Road Line Using GIS
47
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
47
01:25Statistical Methods for Analyzing Epidemiological Data
363
Epidemiological data primarily involves information on specific populations' occurrence, distribution, and determinants of health and diseases. This data is crucial for understanding disease patterns and impacts, aiding public health decision-making and disease prevention strategies. The analysis of epidemiological data employs various statistical methods to interpret health-related data effectively. Here are some commonly used methods:
363