Multimedia databases allow for the storage, management, and retrieval of various media file types like documents, images, audio, and video. Multimedia database management systems provide a framework for different data formats across many sources. Requirements for multimedia databases include integration, data independence, concurrency control, persistence, privacy, availability, integrity control, recovery, query support, manageability, and indexing and retrieval. Indexing and retrieval uses standardized technologies to code multimedia data and describe content to enable searching and extracting information from stored multimedia data. Multimedia database architectures can be based on principles of autonomy, uniformity, or a hybrid approach.

1. More recent applications
Multimedia databases

2. Multimedia Database
Host for storing, managing and retrieving media file types such
as documents, images, audio, video etc.
Multimedia Database Management
System
Framework that manages different types of data potentially
represented in a wide diversity of formats on a wide array of
media sources.

3. Why multimedia database?
• Use of personal computers as well as high definition gadgets such
as digital cameras, scanners, printers, monitors.
• Increasing popularity of world wide web
• Software applications requiring multimedia applications

4. Requirements
• Integration
• Data independence
• Concurrency control
• Persistence
• Privacy
• Availability
• Integrity control
• Recovery
• Query support
• Manageability
• Index and retrieval

5. Index and retrieval
• Different technology is used in multimedia database to enable
search and retrieval.
• These are the standardized technology for coding multimedia data,
natural and synthetic (e.g., photography and face animation,
respectively), continuous and static (e.g., video and image,
respectively), also describing content (Multimedia Description
Interface) and for an open multimedia framework for a reasonable
and interoperable use of multimedia in a disseminated
environment. The relationship to some of the popular multimedia
formats, mp3 and mp4, are based on the MPEG coding family.
• The database stored multimedia data are indexed and the
information can be extracted from the search.
• Data can be manipulated or converted from one format to another
while retaining the image quality controlled.

6. Manageability
• Synchronisation: Database stored images is directly linked to with
the metadata. A single manipulation transaction on image will be
automatically synchronised with the metadata
• Backup/Recovery (standby databases and replication) Images are
automatically replicated if the advanced replication option is used,
and for disaster recovery situations, image data is automatically
transferred to a standby database
• Web base administrations: now database maintenance,
administration, and performance review all can be done easily
using web interface

7. MM Database Architecture
Based on Principle of Autonomy
• Each media type is organized in a media-specific manner suitable
for that media type
• Need to compute joins across
different data structures
• Relatively fast query
processing due to
specialized structures
• The only choice for legacy
data banks

8. Based on Principle of Uniformity
• A single abstract structure to index all media types
• Abstract out the common part of different media types (difficult!) -
metadata
• One structure – easy
implementation
• Annotations for different
media types
MM Database Architecture

9. Based on Principle of Hybrid Organization
• A hybrid of the first two. Certain media types use their own indexes,
while others use the "unified" index
• An attempt to capture
the advantages of the
first two
• Joins across multiple
data sources using their
native indexes
MM Database Architecture

10. Conclusion
• Works behind the screen as a backbone support for the integration
and presentation of large amount of good quality multimedia data
in an effective and efficient manner.
• The development and the extent of usage of MMDBMS will remain
to be unforeseen as developments in networking capabilities as
well as hardware technological advancements continue to push
limits of this technology. As multimedia information exchange
becomes very important nowadays, multimedia database system
gets more tremendous development.

11. Thank You