Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness最新文献

Generation of moving object trajectories in indoor space 室内空间中运动物体轨迹的生成

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 2016-10-31 DOI: 10.1145/3005422.3005431

H. Ryoo, S. Kim, Taehoon Kim, Donguk Seo, Ki-Joune Li

引用次数: 2

Ubiquitous real-time geo-spatial localization 无处不在的实时地理空间定位

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 2016-10-31 DOI: 10.1145/3005422.3005426

Ashish Gupta, Alper Yilmaz

{"title":"Ubiquitous real-time geo-spatial localization","authors":"Ashish Gupta, Alper Yilmaz","doi":"10.1145/3005422.3005426","DOIUrl":"https://doi.org/10.1145/3005422.3005426","url":null,"abstract":"Rapidly growing technologies like autonomous navigation require accurate geo-localization in both outdoor and indoor environments. GNSS based outdoor localization has limitation of accuracy, which deteriorates in urban canyons, forested region and is unavailable indoors. Technologies like RFID, UWB, WiFi are used for indoor localization. These suffer limitations of high infrastructure costs, and signal transmission issues like multi-path, and frequent replacement of transciever batteries. We propose an alternative to localize an individual or a vehcile that is moving inside or outside a building. Instead of mobile RF transceivers, we utilize a sensor suite that includes a video camera and an inertial measurement unit. We estimate a motion trajectory of this sensor suite using Visual Odometery. Instead of preinstalled transceivers, we use GIS map for outdoors, or a BIM model for indoors. The transport layer in GIS map or navigable paths in BIM are abstracted as a graph structure. The geo-location of the mobile platform is inferred by first localizing its trajectory. We introduce an adaptive probabilistic inference approach to search for this trajectory in the entire map with no initialization information. Using an effective graph traversal spawn-and-prune strategy, we can localize the mobile platform in real-time. In comparison to other technologies, our approach requires economical sensors and the required map data is typically available in the public domain. Additionally, unlike other technologies which function exclusively indoors or outdoors, our approach functions in both environments. We demonstrate our approach on real world examples of both indoor and outdoor locations.","PeriodicalId":173431,"journal":{"name":"Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness","volume":"110 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127111969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Querying indoor spatio-temporal data by hybrid trajectories 基于混合轨迹的室内时空数据查询

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 2016-10-31 DOI: 10.1145/3005422.3005424

Franck Jeveme Panta, F. Sèdes

{"title":"Querying indoor spatio-temporal data by hybrid trajectories","authors":"Franck Jeveme Panta, F. Sèdes","doi":"10.1145/3005422.3005424","DOIUrl":"https://doi.org/10.1145/3005422.3005424","url":null,"abstract":"GPS has become the reference for outdoor positioning, implementing a direct connection between the GPS satellite and a receiver device. Indoor positioning raises new challenges, locating a target device requires the wireless sensors networks and other technologies. Sensor networks deployed in buildings are commonly used for many applications based on location: surveillance, detection, navigation, etc. These indoor locating sensors generate lot of data related to tracking information. Exploiting this information for investigation issues for example remains a relevant purpose. The context of this paper is related to indoor locations systems based on wireless cell, ICCARD sensors and video surveillance cameras. In this context, as no global reference system similar to GPS is available, the location information issued from various systems, platforms, devices, etc. have neither standards nor common formats, and remain heterogeneous. This heterogeneity is mainly due to the different types of positions (geometric, symbolic, etc.) expressed w.r.t. various reference systems. In order to manage them in a given framework, it is necessary to homogenize the relevant (Meta) data to process the global knowledge they can give. This paper presents a contribution to extend our framework [1] to information generated by location sensor networks deployed in an indoor environment. The use case is illustrated in a forensic application [2].","PeriodicalId":173431,"journal":{"name":"Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness","volume":"11 24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124379192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

IndVizCMap: visibility color map in an indoor 3D space IndVizCMap:室内3D空间的可视性彩色地图

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 2016-10-31 DOI: 10.1145/3005422.3005430

Arif Arman, Kaysar Abdullah, Ishat E. Rabban, Mohammed Eunus Ali

{"title":"IndVizCMap: visibility color map in an indoor 3D space","authors":"Arif Arman, Kaysar Abdullah, Ishat E. Rabban, Mohammed Eunus Ali","doi":"10.1145/3005422.3005430","DOIUrl":"https://doi.org/10.1145/3005422.3005430","url":null,"abstract":"The widespread availability of indoor and outdoor 3D models enables us to answer a wide range of spatial visibility queries in the presence of obstacles (e.g., buildings, furniture). Example queries include \"what is the best position for placing a surveillance camera in an indoor space?\" \"what is the best position for placing a notice board in a doctor's station or a billboard in a city for a particular font size?\" or \"which hotel gives the best view of the city skyline?\". These queries require computing and differentiating the visibility of a target object from each viewpoint of the surrounding space. This paper presents IndVizCMap that constructs a visibility color map (VCM), where each point in the space is assigned a color value denoting the visibility measure of the target. IndVizCMap is a scalable, efficient and comprehensive solution to construct VCM for a fixed target that considers the partial visibility of the target from viewpoints. Data structures for the fixed target support incremental updates of the VCM if the target moves to near-by positions. More importantly, IndVizCMap can output VCM considering readability of text data displayed on target.","PeriodicalId":173431,"journal":{"name":"Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124953763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Outdoor-indoor space: unified modeling and shortest path search 室内外空间:统一建模，最短路径搜索

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 2016-10-31 DOI: 10.1145/3005422.3005427

S. K. Jensen, Jens Thomas Vejlby Nielsen, Hua Lu, M. A. Cheema

引用次数: 5

Employing spatial analysis in indoor positioning and tracking using wi-fi access points 利用wi-fi接入点在室内定位和跟踪中使用空间分析

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 2016-10-31 DOI: 10.1145/3005422.3005425

Song Gao, S. Prasad

引用次数: 11

Towards indoor localization and navigation independent of sensor based technologies 朝着不依赖于传感器技术的室内定位和导航方向发展

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 2016-10-31 DOI: 10.1145/3005422.3005423

Gangani Geethika Wijewardena, M. Vasardani, S. Winter

{"title":"Towards indoor localization and navigation independent of sensor based technologies","authors":"Gangani Geethika Wijewardena, M. Vasardani, S. Winter","doi":"10.1145/3005422.3005423","DOIUrl":"https://doi.org/10.1145/3005422.3005423","url":null,"abstract":"Many sensor based technologies exist to assist localization and navigation tasks in indoor space. Their success is hindered by limitations in their technology, accuracy and cost. This research provides an approach for localization and navigation based on the topological property of connectivity between spatial entities combined with qualitative information gathered from the user. In the research, a model and an algorithm is developed for localization and navigation in indoor space. It provides the user with the information necessary to express their unique location qualitatively using properties of spatial entities. The spatial entities and the accessibility property between them are stored in a graph-based data structure. The user's location and navigation path are derived using spatial queries that combine qualitative user input with the stored properties. Localization is provided only when the user provides input and is, therefore, an alternative solution to when sensor based technologies are limited or costly. A proof of concept application is implemented using the algorithm for a selected floor plan of a shopping mall.","PeriodicalId":173431,"journal":{"name":"Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117007318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness 第八届ACM SIGSPATIAL室内空间意识国际研讨会论文集

Proceedings of the Eighth ACM SIGSPATIAL International Workshop on Indoor Spatial Awareness Pub Date : 1900-01-01 DOI: 10.1145/3005422

引用次数: 0