GeoVisuals: a visual analytics approach to leverage the potential of spatial videos and associated geonarratives
GeoVisuals: a visual analytics approach to leverage the potential of spatial videos and associated geonarratives
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DOI：
10.1080/13658816.2020.1737700
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发表时间：
2020-03-09
影响因子：
5.7
通讯作者：
Yang, Jing
中科院分区：
文献类型：
--
作者：
Jamonnak, Suphanut;Zhao, Ye;Yang, Jing
嵌入空间坐标的视频，特别是与其他专家见解相结合时，提供了为各种不同环境获取精细尺度多时间段上下文数据的可能性。然而，虽然这些地理空间多媒体（GSMM）数据包括丰富的时空，语义和视觉信息，手段充分利用其潜力，使用一套视觉和交互式分析技术和工具，迄今为止一直缺乏。在本文中，我们首先确定GSMM数据所需的任务类型，然后提出一个解决方案平台，以解决这一差距。该GeoVisuals系统采用了基于语义数据点的可视化分析方法，这些数据点可以在空间上集成，从而可以在统一的数据库中进行管理，并结合时空和文本查询。一套可视化功能集成在两种调查模式：地理视频分析和地理位置分析。
Videos embedded with spatial coordinates, especially when combined with additional expert insights, offer the potential to acquire fine-scale multi-time period contextualized data for a variety of different environments. However, while these geospatial multimedia (GSMM) data include abundant spatiotemporal, semantic and visual information, the means to fully leverage their potential using a suite of visual and interactive analysis techniques and tools has thus far been lacking. In this paper, we address this gap by first identifying the types of tasks required of GSMM data, and then presenting a solution platform. This GeoVisuals system utilizes a visual analysis approach built on semantic data points that can be integrated spatially, which in turn enables management in a unified database with combined spatio-temporal and text querying. A set of visualization functions are integrated in two investigation modes: geo-video analysis and geo-location analysis.