Support for multimedia data manipulation a database

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Unformatted text preview: types such as video, audio and animation sequences also have temporal (time-related) requirements, which have implications on their storage, manipulation, and presentation. Similarly, images, graphics, and video data have spatial (space-related) constraints in terms of their content. A multimedia database system must be suitably designed to understand and meet these additional requirements of these multimedia data types in order to handle them successfully. Support for Multimedia Data Relationships A multimedia database system supports multiple data types. It is often required to integrate two or more data types to form new composite multimedia data types and present them to the user. Often composition and presentation of multimedia data types requires spatial (space-related), temporal (time-related), and/or synchronization relationships to be established among various data items of different types. Spatial relationships organize the data's visual layout. For example, superimposition of a text object on a specific part of a displayed image/video object. Temporal relationships dictate the temporal layout, ensuring the timely presentation of the right data. A simple example might be, "Play video and audio al, and, when finished, play music ml until slide show s1 is done". Synchronization relationships control the synchronized presentation of two or more objects, such as maintaining lip synchronization between a movie and a sound track. In order to take care of all such multimedia data composition and presentation requirements, a multimedia database system should provide facilities to define and support several kinds of relationships between multimedia data objects. Support for Multimedia Data Modeling A multimedia database model must haw features to capture the static and dynamic properties of the database contents (multimedia data). The static properties could include the data items that make up the multimedia data, the relationships between the data items, the data item att...
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This document was uploaded on 04/07/2014.

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