Automatic environmental sound concepts discovery for video retrieval

This paper characterizes a new method for video–soundtrack retrieval based on environmental sounds. Actually, a set of 26 semantic audio concepts is employed. This set is chosen for its helpfulness to the users in terms of video browsing. Additionally, a set of 2000 videos has been annotated with these concepts. To enhance a new signal processing, we start with the separation of the audio sources. In addition, using a fundamental representation of the audio signal as a sequence of Mel Frequency Cepstral Coefficient, we can carry out experiments with three signal representations: the Support Vector machines, the Gaussian Mixture Model and the Hidden Markov Model. Throughout the experiment synthesis, we maintain the Gaussian Mixture Model classifier based on the Kullback–Leibler distance measure. As a matter of fact, we preserve this audio concept classification to integrate a video retrieval system. Hence, the obtained results mirror the effectiveness of our approaches in distinguishing environmental sound and researching video.