The trecvid 2007 BBC rushes summarization evaluation pilot

  • Authors:

  • Paul Over;Alan F. Smeaton;Philip Kelly

  • Affiliations:

  • National Institute of Standards and Technology (NIST), Gaithersburg, MD;Dublin City University, Dublin, Ireland;Dublin City University, Dublin, Ireland

  • Venue:
  • Proceedings of the international workshop on TRECVID video summarization
  • Year:
  • 2007

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Abstract

This paper provides an overview of a pilot evaluation of video summaries using rushes from several BBC dramatic series. It was carried out under the auspices of TRECVID. Twenty-two research teams submitted video summaries of up to 4% duration, of 42 individual rushes video files aimed at compressing out redundant and insignificant material. The output of two baseline systems built on straightforward content reduction techniques was contributed by Carnegie Mellon University as a control. Procedures for developing ground truth lists of important segments from each video were developed at Dublin City University and applied to the BBC video. At NIST each summary was judged by three humans with respect to how much of the ground truth was included, how easy the summary was to understand, and how much repeated material the summary contained. Additional objective measures included: how long it took the system to create the summary, how long it took the assessor to judge it against the ground truth, and what the summary's duration was. Assessor agreement on finding desired segments averaged 78% and results indicate that while it is difficult to exceed the performance of baselines, a few systems did.