Multimedia database

About: Multimedia database is a research topic. Over the lifetime, 1404 publications have been published within this topic receiving 19856 citations. The topic is also known as: Multimedia database & MMDB.

Modelling uncertainty in multimedia database systems

Abstract: In database systems one often has to deal with constraints in order to compel the semantics of the stored data or to express some querying criteria. This is especially the case for multimedia datab...

Multimedia database of the cultural heritage of the Balkans

Abstract: This paper presents a system that is designed to make possible the organization and search within the collected digitized material of intangible cultural heritage. The motivation for building the system was a vast quantity of multimedia documents collected by a team from the Institute for Balkan Studies in Belgrade. The main topic of their research were linguistic properties of speeches that are used in various places in the Balkans by different groups of people. This paper deals with a prototype system that enables the annotation of the collected material and its organization into a native XML database through a graphical interface. The system enables the search of the database and the presentation of digitized multimedia documents and spatial as well as non-spatial information of the queried data. The multimedia content can be read, listened to or watched while spatial properties are presented on the graphics that consists of geographic regions in the Balkans. The system also enables spatial queries by consulting the graph of geographic regions.

Interactive Object Annotation for Construction of Video Information System

Abstract: In this paper, an interactive object annotation approach for video database will be proposed. The same semantic objects such as characters, backgrounds, and the main subjects in keyframes of each video shots can be queried and annotated based on the similarity of low-level features such as the color, area, and position of each region. An adaptive image enhancement algorithm is used for handling the lighting changes, and a region-based fuzzy feature matching approach is used for addressing the typical feature representation impreciseness. The content provider can then select relevant keyframes interactively from the results to annotate matched objects in them according to the descriptions that are added into the model. Based on this approach, a video information system is proposed for supporting video content generation. Furthermore, a novel practical application is constructed by using this support system and implemented to show the practicability of it.

A Database-Centric Approach to Enabling End-to-End QoS for Multimedia Repositories

Abstract: The paper discusses the design and prototype implementation of a QoS aware multimedia database system. Recent research in multimedia databases has devoted little attention to the aspect of the integration of QoS support at the user level. One common scenario which we are concerned with connects a user through a visual interface to a multitude of media object stores. The user demands satisability of a set of quality parameter bounds specied at query time or before (via user prole mappings). The user is not aware of detailed low-level QoS parameters but rather species high-level, qualitative attributes on the media query. Our proposed architecture to enable end-to-end QoS control, the QoS-Aware Query Processor (QuaSAQ), is motivated by query processing and optimization techniques in traditional database management systems. The proposed solution relies on mediation through several components (two of which are the QoP Browser and Quality Manager) that enable searching, locating, composing and presenting of multimedia objects with associated QoS constraints. In addition to an overview of key research issues, this paper also presents some of the proposed design solutions. One focus problem is how to evaluate the alternative plans for serving QoS-enhanced queries. We propose a novel cost model that explicitly takes the resource utilization of plans and the current system contention level into account. Experiments run on the QuaSAQ prototype show signican tly improved QoS and throughput in media query processing.