UVR Lab. was formed in Feb. 2001 at GIST to study and develop “Virtual Reality in Smart computing environments” that process multimodal input, perceive user’s intention and emotion, and respond to user’s request through Augmented Reality. Since 2012, UVR Lab moved to KAIST GSCT and restarted with a theme of “FUN in Ubiquitous VR.”
작성일 : 15-08-14
[UVR Seminar] by Dr. Seon Ho Kim (USC IMSC) (9/1/2015)
 글쓴이 : UVR
조회 : 10,780  

User-Generated Media Management Using Spatial Metadata and Their Applications

Speaker: Seon Ho Kim, Ph.D.,

Associate Director, Integrated Media Systems Center

University of Southern California



Recently, there have been studies to utilize spatial metadata of videos for the management of large amount 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. This talk covers and describes existing technologies and methods in harnessing spatial metadata of videos in various video applications such as collective video collection, sharing, editing, etc., especially for user-generated mobile videos from smartphones. The discussion includes types of metadata, their acquisition, searching, and applications of geo-tagged videos in scale. Furthermore, a spatial crowdsourcing of mobile media contents will be discussed with regard to the use of geographical information in acquiring video contents from the general public. Some use cases of the implemented techniques are presented too.


공간 메타 데이타를 이용한 사용자 생성 미디어 관리방법과 응용


최근들어 대용량의 비디오 관리를 위해 비디오와 연관된 공간 메타 데이타를 이용하는 연구들이 있어왔다. 예를 들면, 비디오 촬영시 GPS로부터 카메라의 위치와 디지탈 컴패스로부터 카메라가 향하는 방향을 감지해 비디오 이미지가 담고있는 공간영역을 Field of View (FOV) 모델로 나타내는 것과 같은 경우이다. 이러한 공간 메타 데이타는 어려운 비디오 검색 문제를 알려진 공간 데이타베이스  문제로 효과적으로 변환시킴으로 여러가지 새로운 비디오 응용에 있어 수집된 비디오의 활용을 크게 향상시킬 있게 한다. 강연은 여러가지 비디오 응용에 있어, 특히 스마트폰으로부터의 사용자 생성 비디오 응용에 공간 메타 데이타를 이용하는 기술과 방법을 다룬다. 메타 데이타의 타입, 수집, 메타 데이타를 이용한 대용량 비디오 검색을 포함한다. 공간 정보가 미디어 컨텐츠의 수집, 관리, 편집, 활용에 사용되는 응용 케이스들도 소개된다. 나아가, 일반 대중으로부터 비디오 데이타를 효과적으로 얻을 있는 공간 크라우드소싱도 소개된다.




SHK-2011-02.jpgDr. Seon Ho Kim is currently working as an Associate Director in the Integrated Media Systems Center (IMSC) at the University of Southern California. Before joining IMSC, he worked at the University of Denver and the University of the District of Columbia as faculty for eleven years. He received his BS degree in Electronic Engineering from the Yonsei University, Seoul, Korea in 1986.  He also received his MS in Electrical Engineering and Ph.D. in Computer Science from the University of Southern California, California, in 1994 and 1999, respectively.


Dr. Kim's primary research interests include multimedia systems, databases, GIS, and mobile video data management, where he has more than 70 publications including a textbook, major journal papers, and top conference papers. He has been serving the research community as conference program committee member, journal editorial board member and reviewer.