Stabilization technique for region-of-interest trajectories made from videowatching manipulations

Daisuke Ochi, Hideaki Kimata, Yoshinori Kusachi, Kosuke Takahashi, Akira Kojima

Research output: Contribution to journalArticlepeer-review


Due to the recent progress made in camera and network environments, on-line video services enable people around the world to watch or share high-quality HD videos that can record a wider angle without losing objects' details in each image. As a result, users of these services can watch videos in different ways with different ROIs (Regions of Interest), especially when there are multiple objects in a scene, and thus there are few common ways for them to transfer their impressions for each scene directly. Posting messages is currently the usual way but it does not sufficiently enable all users to transfer their impressions. To transfer a user's impressions directly and provide users with a richer video watching experience, we propose a system that enables them to extract their favorite parts of videos as ROI trajectories through simple and intuitive manipulation of their tablet device. It also enables them to share a recorded trajectory with others after stabilizing it in a manner that should be satisfactory to every user. Using statistical analysis of user manipulations, we have demonstrated an approach to trajectory stabilization that can eliminate undesirable or uncomfortable elements due to tablet-specific manipulations. The system's validity has been confirmed by subjective evaluations.

Original languageEnglish
Pages (from-to)266-274
Number of pages9
JournalIEICE Transactions on Information and Systems
Issue number2
Publication statusPublished - 2014


  • Camera trajectory
  • ROI
  • Region of Interest
  • Tablet manipulation
  • Video stabilization

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering
  • Artificial Intelligence


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