Audio events detection based highlights extraction from baseball, golf and soccer games in a unified framework

We have developed a unified framework to extract highlights from three sports - baseball, golf and soccer - by detecting some of the common audio events that are directly indicative of highlights. We used MPEG-7 audio features and entropic prior hidden Markov models (HMM) for feature extraction and classification, respectively, to recognize these common audio events. Together with pre- and post-processing techniques using general sports knowledge, we have been able to generate promising results dealing with an audio track that is dominated by audio mixtures and noisy background.