Automatic Shot Boundary Detection Using Adaptive Thresholds

This paper describes the contribution of the TZI to the shot detection task of the TREC 2003 video analysis track (TRECVID). The approach comprises a feature extraction step and a shot detection step. In the feature extraction, three features are extracted: a frequency-domain approach based on FFT-features, a spatial-domain approach based on changes in the image luminance values, and another spatial domain approach based on gray level histogram differences. Shot boundary detection uses then adaptive thresholds based on all extracted features of the complete video. The final shot list is a combination of shots which result from an independent examination of all three features.