Ki-Joune Li
ABSTRACT
Most multimedia contain location information whether they are implicit or explicit, and they are very useful for several purposes. In particular, we may use location information in defining query conditions to retrieve relevant multimedia. For this reason, a number of works have been done to organize and retrieve geo-referenced multimedia data. However, they mostly focus on outdoor space where position is identified by (x, y, z) or (x, y) coordinates. In this paper, we focus on multimedia in an alternative space, indoor space, which differs from outdoor space in several aspects. First indoor space is considered as symbolic space, where location is identified by a symbolic code such as room number rather than coordinates. Second, topological information is a crucial element in providing indoor spatial information services. Third, indoor space is in more micro-scale than outdoor space, which influences on determining the visibility of cameras. Based on these different characteristics of indoor space, we survey the requirements of management systems of indoor geo-referenced multimedia. Then we propose a geo-coding scheme, called IngC(Indoor Geo-Coding) for multimedia in indoor space as an extension of IndoorGML, an OGC (Open Geospatial Consortium) candidate standard for indoor spatial information.
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Index Terms
- Geo-coding scheme for multimedia in indoor space
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