In geographic data videos, camera movements are frequently used and combined to present information from multiple perspectives. However, creating and editing camera movements requires significant time and professional skills. This work aims to lower the barrier of crafting diverse camera movements for geographic data videos. First, we analyze a corpus of 66 geographic data videos and derive a design space of camera movements with a dimension for geospatial targets and one for narrative purposes. Based on the design space, we propose a set of adaptive camera shots and further develop an interactive tool called GeoCamera. This interactive tool allows users to flexibly design camera movements for geographic visualizations. We verify the expressiveness of our tool through case studies and evaluate its usability with a user study. The participants find that the tool facilitates the design of camera movements.

翻译：在地理数据视频中，摄像机运动被频繁使用并组合，以从多角度呈现信息。然而，创建和编辑摄像机运动需要大量时间和专业技能。本研究旨在降低为地理数据视频设计多样化摄像机运动的门槛。首先，我们分析了66个地理数据视频的语料库，并推导出一个包含地理空间目标和叙事目的两个维度的摄像机运动设计空间。基于该设计空间，我们提出了一组自适应摄像机镜头，并进一步开发了一个名为GeoCamera的交互式工具。该交互式工具允许用户灵活地为地理可视化设计摄像机运动。我们通过案例研究验证了该工具的表现力，并通过用户研究评估了其可用性。参与者发现该工具有助于摄像机运动的设计。