考虑到用户视线的无处不在的照片映射

Hideyuki Fujita, M. Arikawa
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引用次数: 9

摘要

本文提出了一个新的框架,用于相互映射和检索照片、地图和网络空间。我们的目标照片是通过空间元数据增强的,比如拍摄地点的地理坐标和拍摄方向。我们假设具有这种空间元数据的照片会变得流行。在一个通用框架中,这些照片通过使用GPS生成的位置信息被映射到它们的视点。我们认为这个框架对于实际的空间查询功能不够。例如,即使一张照片被映射到地图上的某一点,该点的场景也可能不会显示在照片中。它可能显示与用户希望看到的方向不同。问题是,虽然照片中显示的位置或物体对用户来说很重要,但视点不是它们的位置,而是拍摄照片的相机的位置。因此,我们将每张照片从其视点到凝视点映射为一个向量,并将该向量命名为照片向量。基于我们的框架的原型系统提供了一些功能,例如处理用于检索照片的高级空间查询,可视化显示每个位置的照片数量,以及将具有url和地理坐标的文本标签映射到照片上的适当位置。在这个框架中,照片、地图和网络空间相互映射。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A ubiquitous photo mapping considering users' lines of sight
This paper proposes a new framework for mapping and retrieving photographs, maps and cyberspaces to each other. Our target photographs are enhanced with spatial metadata such as geographic coordinates where they were taken and directions where they focused on. We assume photographs having such spatial metadata become popular. In a common framework, such photographs are mapped to their viewpoints by using their location information generated by GPS. We think this framework has less function for practical spatial queries. For example, even if a photograph is mapped to a certain point on a map, a scene of the point may not be shown in the photograph. It may show a different direction than user wants to see. A problem is that though locations or objects shown in photographs are important for users, viewpoints are not positions of them but positions of cameras from which photographs were taken. We therefore map each photograph to a vector from its viewpoint to its gazing point, and named the vector as photo vector. A prototype system based on our framework provides functions such as handling advanced spatial queries for retrieving photographs, visualizing how many photographs show each location, and mapping text labels having URLs and geographic coordinates to the appropriate positions on photographs. In this framework, photographs, maps and cyberspaces are mapped to each other.
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