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Benefits of using Multimedia Database

The incorporation of multimedia database systems will improve the quantity and quality of information manipulated by computer users in all fields, computer aided design, and information retrieval. The area of intelligent multimedia content analysis and retrieval techniques is an emerging discipline. Techniques for representing and extracting semantic information from media such as speech, images, and video are required.

When a multimedia application lacks a database, the data structure is buried in the script, where all of its value is lost. This omission also makes the script more complicated and less flexible. Using a multimedia database makes the data structure logic available to other multimedia applications and simplifies the script so that many scripts can share the same multimedia metadata. In addition, when a multimedia or abstract data database is organized and annotated for one application, other applications can use those annotations without going through the same time-consuming process. This capability adds great value to the data through reuse and controlled redundancy.

When multimedia application content is controlled by the multimedia database, multimedia content can be added, deleted, or modified without modifying the application script. For example, interactive kiosks that display, describe, and demonstrate products can be updated automatically without reprogramming the application script. Furthermore, a multimedia application such as a multimedia textbook can actually control the operation of book topics that have the same look and feel. This control lets the script perform as a template: An entire series of math textbooks (algebra, calculus, trigonometry, and geometry), including text and video, can use the same multimedia application because all data is physically separate.

Search and retrieval operations are critical in interactive multimedia applications; they must be equally efficient and powerful. Search and retrieval of multimedia and abstract data is challenging, but multimedia databases make it feasible through internal storage format flexibility and efficient operation. The DBMS should have significant knowledge about the data and its structure to enable powerful semantic optimizations and intelligent searches. Search and retrieval operations also give the application access to media components so that they can be dynamically and seamlessly processed when necessary.


Features of Multimedia Database


  • Query in Multimedia DBMS

In a DBMS process, declarative user queries are done by defining a query language as part of DBMS. It is known that the query is one of the most important parts of a DBMS. Since a query gets used by both native and export users it is critical to use effective query languages in order to promote user friendliness. Multimedia query languages must deal with complex spatial and temporal relationships inherited in the wide range of multimedia data types. Powerful query languages could help manipulate multimedia DBMS and maintain the desired independence between the database and the application. Due to the complexity of multimedia data, we need a query language that could support semantic data retrieval which is done by using keywords, indexes on keywords, and contents of multimedia objects. However the query language of traditional DBMS dealt only with exact key match queries on data types which means sufficient to deal with queries posed against metadata and annotations of multimedia data.

There are two types of queries that are used in the database system. The first query is called a well-defined query. A well-defined query is when properties of objects are represented by a well defined set of labels. The conditional operators are also well defined. In well-defined query, the user must know the exact knowledge of the underlying database and the desired query result. This query only works with exact matches. The second query type of is called the fuzzy query where the properties of query objects are unclear or comparison operators in the query do not give exact matches, This will result in all sets of different answers.

  • Charts and Graphs

Multimedia database supports all type of charts and graphs which is considered a great feature in the MDBS. Creating those charts and graphs will need special queries and those queries are created by using SQL +D.




  • Multimedia Presentation

The terms multimedia document, multimedia or temporal presentation, have been used in the literature interchangeably. Multimedia Database offers to store large amount of media like audio and video, all of those are used also in the presentation process. MDBS also stores multimedia documents and presentation.



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