Media annotations in hyperlinked pedagogical platforms

Today´s eLearning websites are heavily loaded with multimedia contents, which are often unstructured, unedited, unsynchronized, and lack inter-links among different multimedia components. Hyperlinking different media modality may provide a solution for quick navigation and easy retrieval of pedagogical content in media rich eLearning platforms. Creating hyperlinks in media rich platforms often requires video and presentation slides annotation. Manually annotating different media is a challenging, laborious, prone to errors, and a time-consuming task. In this paper, an approach combining state-of-the-art SIFT together with wavelet energy transform is proposed for automatic lecture video annotations for the hyper interactive presenter (HIP). New video annotations are implemented automatically providing the needed random access in lecture videos within the HIP platform. A preliminary study of the usefulness of the system is carried out, and the initial results are suggesting that 70% of the students opted for using HIP as their preferred eLearning platform at Gjovik university college (GUC).