The Concepts of Level of Detail in 3D Indoor Models
Hyo-jin Jung, Hyeyoung Kang & Jiyeong Lee
Demands on indoor services are increasing as people spend more time in indoor environment. However, IndoorGML, which is a navigation data model in indoor space has been standardized in OGC to satisfy these increasing demands, LOD (Level of Detail) of spatial data representing indoor space have not defined to provide indoor LBS. The LOD proposed by CityGML is defined based on details and sizes of geographical features in geometric feature. As well, indoor space is only represented by LOD 4 in CityGML. However, the representation of indoor space is required more detailed than outdoor space. Furthermore, LOD for indoor space should be defined diversely according to the types of indoor services. For example, detailed representation of geometry for all of features in indoor space such as LOD4 of CityGML is required to develop an application of indoor facility management. On the other hand, only simple geometric representation for indoor space can be used to provide services like indoor navigation. For these reasons, spatial features in indoor space should be represented in different levels according to types of indoor services. Therefore, indoor LOD model based on applicable services using indoor spatial information is required. In this research, we propose the basic concepts of Indoor LOD in 3D indoor models to be appropriate for indoor service and demonstrate the use-cases of indoor GIS applications based on the Indoor LOD model.
Event: FIG Working Week 2016 : Recovery from Disaster
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