Cross-media correlation: A case study of navigated hypermedia documents

The research issues on multiple media correlation have arisen with more and more integrated multimedia applications. The multimedia correlation is used to coordinate different media and facilitate cross-media access. This paper presents our work on two types of multimedia correlation: explicit and implicit relations. We develop a system to carefully capture explicit relations and devise some computed synchronization processes to discover implicit relations between media objects. The proposed computed synchronization techniques, including speech-text alignment process in temporal domain, automatic scrolling process in spatial domain, and content dependency check process in content domain, will be addressed. Experimental results show that in the speech-text alignment process 80% of forced alignment are in-sync even the speech recognition accuracy is as low as 25%. The automatic scrolling process effectively maintains a resynchronization mechanism in different displaying environments.