Type

Conference Proceedings

Authors

Hervé Le Borgne
Eddie Cooke
Gareth J. F. Jones
Alan F. Smeaton
Hyowon Lee
Noel E. O'Connor

Subjects

Computer Science

Topics
information retrieval video retrieval relevance feedback video information retrieval digital video automatic speech recognition search engines search and retrieval

Físchlár-TRECVid2004: Combined text- and image-based searching of video archives (2006)

Abstract The Fischlar-TRECVid-2004 system was developed for Dublin City University's participation in the 2004 TRECVid video information retrieval benchmarking activity. The system allows search and retrieval of video shots from over 60 hours of content. The shot retrieval engine employed is based on a combination of query text matched against spoken dialogue combined with image-image matching where a still image (sourced externally), or a keyframe (from within the video archive itself), is matched against all keyframes in the video archive. Three separate text retrieval engines are employed for closed caption text, automatic speech recognition and video OCR. Visual shot matching is primarily based on MPEG-7 low-level descriptors. The system supports relevance feedback at the shot level enabling augmentation and refinement using relevant shots located by the user. Two variants of the system were developed, one that supports both text- and image-based searching and one that supports image only search. A user evaluation experiment compared the use of the two systems. Results show that while the system combining text- and image-based searching achieves greater retrieval effectiveness, users make more varied and extensive queries with the image only based searching version.
Collections Ireland -> Dublin City University -> Publication Type = Conference or Workshop Item
Ireland -> Dublin City University -> Subject = Computer Science
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres: Centre for Digital Video Processing (CDVP)
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> Subject = Computer Science: Information retrieval
Ireland -> Dublin City University -> Subject = Computer Science: Digital video
Ireland -> Dublin City University -> DCU Faculties and Centres = Research Initiatives and Centres

Full list of authors on original publication

Hervé Le Borgne, Eddie Cooke, Gareth J. F. Jones, Alan F. Smeaton, Hyowon Lee, Noel E. O'Connor

Experts in our system

1
Gareth J. F. Jones
Dublin City University
Total Publications: 265
 
2
Alan F. Smeaton
Dublin City University
Total Publications: 450
 
3
Noel E. O'Connor
Dublin City University
Total Publications: 420