Open video: A framework for a test collection

Slaughter, Laura; Marchionini, Gary; Geisler, Gary

doi:10.1006/jnca.2000.0112

Cited by 15 publications

(11 citation statements)

References 22 publications

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“…We evaluate the performance of key frame selection on four full-length videos: (1) Video 1 -a 14-min documentary video on the topic of the space shuttle program; [20,22]; Video 3 is recorded from a TV channel; Video 4 is a professionally-edited documentary video.…”

Section: Evaluation Of Key-frame Selection Resultsmentioning

confidence: 99%

A two-level queueing system for interactive browsing and searching of video content

Liu

Katpelly

2006

Multimedia Systems

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This paper presents a two-level queueing system for dynamic summarization and interactive searching of video content. Video frames enter the queueing system; some insignificant and redundant frames are removed; the remaining frames are pulled out of the system as top-level key frames. Using an energyminimization method, the first queue removes the video frames that constitute the gradual transitions of video shots. The second queue measures the content similarity of video frames and reduces redundant frames. In the queueing system, all key frames are linked in a directed-graph index structure, allowing video content to be accessed at any level-of-detail. Furthermore, this graph-based index structure enables interactive video content exploration, and the system is able to retrieve the video key frames that complement the video content already viewed by users. Experimental results on four full-length videos show that our queueing system performs much better than two existing methods on video key frame selection at different compression ratios. The evaluation on video content search shows that our interactive system is more effective than other systems on eight video searching tasks. Compared with the regular media player, our system reduces the average content searching time by half.

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Section: Evaluation Of Key-frame Selection Resultsmentioning

confidence: 99%

A two-level queueing system for interactive browsing and searching of video content

Liu

Katpelly

2006

Multimedia Systems

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“…One of our early goals was to develop a video testbed that the research and development community could use to compare results (Slaughter, Marchionini, & Geisler, 2000). This effort was inspired by the Text Retrieval Evaluation Conference (TREC) (http://trec.nist.gov/testbeds) for text retrieval, and TREC initiated a video retrieval track in 2000 that used some of the Open Video content.…”

Section: The Evolution Of the Open Video Digital Librarymentioning

confidence: 99%

The Open Video Digital Library: A Möbius strip of research and practice

Marchionini

Wildemuth

Geisler

2006

J. Am. Soc. Inf. Sci.

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The Open Video Digital Library (OVDL) provides digital video files to the education and research community and is distinguished by an innovative user interface that offers multiple kinds of visual surrogates to people searching for video content. The OVDL is used by several thousand people around the world each month and part of this success is due to its user interface. This article examines the interplay between research and practice in the development of this particular digital library with an eye toward lessons for all digital libraries. We argue that theoretical and research goals blur into practical goals and practical goals raise new research questions as research and development progress-this process is akin to walking along a Möbius strip in which a locally two-sided surface is actually part of a globally one-sided world. We consider the gulf between the theories that guide current digital library research and current practice in operational digital libraries, provide a developmental history of the OVDL and the research frameworks that drove its development, illustrate how user studies informed its implementation and revision, and conclude with reflections and recommendations on the interplay between research and practice.

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“…We chose the Open Video Project (Slaughter et al, 2000) because of its focus on multimedia documents and the fact that it is OAI-PMH compliant, i.e. it is instrumented to accept OAI-PMH requests for metadata (Van de Sompel et al, 2002).…”

Section: Open Video Project: a Test Casementioning

confidence: 99%