Wo Chang, of the Information Access Division, has led a successful effort to develop and standardize a profile of specific multimedia application domains as a subset of the MPEG-7 standard. This effort was initiated by the International Standards Organization (ISO) Working Group11 in 2002to help accelerate adoption of MPEG-7 into the marketplace. After a little over 2 years of work, the MPEG-7 Profile is now completed and successfully advanced to the International Standard status. This work was led by Wo Chang with participation by more than 70 companies including Apple, IBM, Microsoft, Motorola, Panasonic, Ricoh, Sharp Lab. of America, Sony, and Toshiba. Within the MPEG-7 Profile, a set of well-defined definitions and processing rules were established to create standard MPEG-7 description profiles and levels. Currently, the standard description profiles include (1) the Simple Metadata Profile (SMP) which describes simple multimedia clips such as music (MP3), images (digital picture), and mobile applications (3GPP), (2) the User Description Profile (UDP) to describe personal preferences and usage patterns of users of multimedia content, and (3) the Core Description Profile (CDP) to describe a collection of multimedia contents for images, videos, and audio which can be used for distribution, broadcast television programming, and educational courseware.
The XML Metadata technology for describing multimedia contents has existed for a while, but a well defined, standard set of features and extensible framework to describe any audiovisual data content was the idea behind the ISO/IEC SC 29 WG11 MPEG-7 metadata description technology back in 1988. The MPEG-7 standard was designed by a range of experts including broadcasters, manufacturers, content creators, publishers, intellectual property rights managers, telecommunication service providers, academia, government, etc., with the goals to: a) define a rich set of standardized tools to describe audiovisual content, b) create good storage solutions, high-performance content identification, fast, accurate, personalized filtering, searching, and retrieval data structure/formats, and c) enable both human users and automatic systems to process the encoded audiovisual content descriptions. Currently, the MPEG-7 standard consists of over 450 data element as its metadata structure.
Contact: Wo Chang (ITL), ext. 3439