Informedia at TRECVID 2003: Analyzing and searching broadcast news video

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Informedia at TRECVID 2003: Analyzing and searching broadcast news video (2003)

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by A. Hauptmann , R. V. Baron , M. -y. Chen , M. Christel , P. Duygulu , C. Huang , R. Jin , W. -h. Lin , T. Ng , N. Moraveji , C. G. M. Snoek , G. Tzanetakis , J. Yang , R. Yan , H. D. Wactlar

Venue:	In Proc. of TRECVID
Citations:	55 - 21 self

BibTeX

@INPROCEEDINGS{Hauptmann03informediaat,
    author = {A. Hauptmann and R. V. Baron and M. -y. Chen and M. Christel and P. Duygulu and C. Huang and R. Jin and W. -h. Lin and T. Ng and N. Moraveji and C. G. M. Snoek and G. Tzanetakis and J. Yang and R. Yan and H. D. Wactlar},
    title = {Informedia at TRECVID 2003: Analyzing and searching broadcast news video},
    booktitle = {In Proc. of TRECVID},
    year = {2003}
}

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Abstract

We submitted a number of semantic classifiers, most of which were merely trained on keyframes. We also experimented with runs of classifiers were trained exclusively on text data and relative time within the video, while a few were trained using all available multiple modalities. 1.2 Interactive search This year, we submitted two runs using different versions of the Informedia systems. In one run, a version identical to last year's interactive system was used by five researchers, who split up the topics between themselves. The system interface emphasizes text queries, allowing search across ASR, closed captions and OCR text. The result set can then be manipulated through: • storyboards of images spanning across video story segments • emphasizing matching shots to a user’s query to reduce the image count to a manageable size • resolution and layout under user control • additional filtering provided through shot classifiers such as outdoors, and shots with people, etc. • display of filter count and distribution to guide their use in manipulating storyboard views. In the best-performing interactive run, for all topics a single researcher used an improved version of the system, which allowed more effective browsing and visualization of the results of text queries using a

Keyphrases

broadcast news video text query video story segment last year effective browsing informedia system filter count ocr text manageable size resolution system interface best-performing interactive run available multiple modality different version version identical relative time single researcher interactive search interactive system improved version storyboard view user control additional filtering text data user query semantic classifier image count shot classifier

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