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< BK21 플러스 BEST 정보기술 사업단 세미나 개최 안내 >

개최일시 : 2015년 4월 16일 목요일 16시 ~ 17시

개최장소 :  제 2공학관 B701호

세미나 제목 : Large Scale Mobile Video Management Using Spatial Metadata

발표초록 : 

Recently, there has been research to utilize spatial metadata of videos for the management of large numbers of videos. For example, the location of a camera from GPS and the viewing direction from an embedded digital compass are captured at the recording time so that they form the field of view (FOV) model for the coverage of a viewable scene. These spatial metadata effectively convert the challenging video search problem to well known spatial database problems, which can greatly enhance the utility of collected videos in many emerging applications. However, there are still many open fundamental research questions in utilizing spatial metadata for data collection, indexing, searching, etc., especially in the presence of a large video dataset, as well as more sophisticated questions such as whether a video database search can accommodate human friendly views.

This talk describes existing technologies and methods in harnessing spatial metadata of videos in spatial databases for video applications, especially for mobile videos from smartphones. The discussion includes types of metadata, their acquisition, indexing, searching, and potential applications of geo-tagged videos in scale. Furthermore, a spatial crowdsourcing of mobile media contents is discussed with regard to the use of geographical information in crowdsourcing. A comprehensive mobile video management system, MediaQ (mediaq.usc.edu), will be also introduced as an implementation case. Our extensive real world experimental case studies demonstrate that MediaQ can be an effective and comprehensive solution for various mobile multimedia applications.

강연자 : 김선호 교수 / University of Southern California

초청자 : 전기전자공학과 교수 이상훈