ABSTRACT: In recent years. a large number of new multimedia (MM) formats have been created. It is widely recognized that the life cycle for a MM document consists of three areas. First of all, a document model is needed to model the MM scenario. Secondly, this document model is to be translated into a computer description. Finally, a set of synchronization primitives must be defined in order to be able to present the computer description to the end-user. The contribution of this paper is the definition of an integrated reference model that covers all three areas. For each of the three areas a model is put forward, based on the current state-of-the-art in that area. From these models, a reference model is created consisting of ten rules and a document model. This model is then applied to a number of real-world MM formats (SMIL, QuickTime, RealVideo, Advanced Streaming Format, Shockwave, and MPEG-4). Finally, a comparison is presented showing the results obtained from applying the reference model to the MM formats.
IEEE Transactions on Multimedia 01/2005; · 1.93 Impact Factor
ABSTRACT: We describe the validation process of a functional metadata document encapsulated in an MPEG-21 digital item. The validation starts with an MPEG-21 digital item containing the functional metadata and ends with a valid functional metadata document or with a list of error codes. Since the W3C schema language does not suffice to validate all relationships within a functional metadata document, a set of extra rules is defined. These rules are implemented through the use of transformations on functional metadata documents. These transformations are implemented using XSLT.
Multimedia and Expo, 2002. ICME '02. Proceedings. 2002 IEEE International Conference on; 02/2002
ABSTRACT: Deinterlacing algorithms are used to convert an interlaced video
sequence to the progressive scan format. Interlaced video exposes
artifacts like line flicker and line crawling and is unsuitable for
progressive media. Picture quality can be improved significantly when a
proper deinterfacing algorithm is applied. The paper presents a motion
adaptive technique based on a fuzzy motion detector. Preliminary
experiments show results using this approach
Knowledge-Based Intelligent Information Engineering Systems, 1999. Third International Conference; 01/2000