LIVE tests its video technology against the best in the industry

TRECVID is an independent evaluation of a video “track” in the TREC conference series (http://www-nlpir.nist.gov/projects/tv2007) sponsored by NIST (National Institute of Standards and Technology) with additional support from other U.S. government agencies. The goal of TRECVID is in automatic segmentation, indexing and content-based retrieval of digital video, in which three main tasks are involved, i.e. shot boundary detection (SBD), high-level feature extraction and search.

In 2007 LIVE will test its wares against the best in the industry. The LIVE partner's University of Bradford, United Kingdom and Fraunhofer Institute IAIS, Germany will have a total of 9 runs submitted on SBD. In general, all the runs are based on compressed-domain features including block-based DC parameters (in Y, Cb and Cr components), motion magnitude, motion resident as well as energy and active macroblocks. Basically, content-based rules and finite state machines are applied in detection of abrupt change and gradual transitions like fade, dissolve and others such as wipe or combined shot changes. In total there are more than 2400 shots in 17 test sequences of 637805 frames in MPEG-1 format. The contribution in abrupt cut detection has an overall recall and precision rate both over 96% and nearly 60% in gradual transitions. It is hoped that the algorithm on abrupt cut detection achieves one of the best performances amongst all the submissions.