1 Imperial College at TRECVID

We describe our experiments for the shot boundary detection, high-level feature extraction and search. In the shot boundary detection task, we employ our proven method based on the calculation of distances between colour histograms of frames over a range of timescales. For the search task, we tested a different system. This year, content based search is complemented with a new relevance feedback method. Results of one interactive run are presented to evaluate the performance of the new system. In the high-level feature detection task we tested two new methods: naïve model and non-parametric density estimation. We evaluated these models with all keywords.