Collaborative Video Annotation by Sharing Tag Clouds

Graduate School of Engineering, Nagoya Institute of Technology
NTT Data
Shigeki OHIRA
Information Technology Center, Nagoya University
Katashi NAGAO
Graduate School of Information Science, Nagoya University


In this paper, we propose a video scene annotation method based on tag clouds. First, user comments associated with a video are collected from existing video sharing services. Next, a tag cloud is generated from these user comments. The tag cloud is displayed on the video window of the Web browser. When users click on a tag included in the tag cloud while watching the video, the tag gets associated with the time point of the video. Users can share the information on the tags that have already been clicked. We confirmed that the coverage of annotations generated by this method is higher than that of the existing methods, and users are motivated to add tags by sharing tag clouds. This method will contribute to advanced video applications.