作者：
Lin, XiaofanVobile Inc.
4699 Old Ironsides Drive Ste. 430 Santa Clara CA 95054 United States
content-based image retrieval (CBIR) has been studied for nearly two decades since IBM's research on QBIC (Query by Image content) [1]. In the past decade, another related but different area, video fingerprinting,...
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Due to the disadvantages of annotation based approaches for media object retrieval, there is a broad interest in content-based methods which allow for retrieval by similarity. Despite the plethora of existing work, ac...
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ISBN:
(纸本)1932415645
Due to the disadvantages of annotation based approaches for media object retrieval, there is a broad interest in content-based methods which allow for retrieval by similarity. Despite the plethora of existing work, actual progress in this area can hardly be documented, since performance evaluation for content-based retrieval is still in its infancy. The main reason for this situation is that considerable efforts are needed to design, conduct and analyze cognition experiments for the acquisition of ground truth data. As there is also a lack of publicly available experiment sets and results, performance evaluation of similarity measures is virtually absent. In order to rectify this situation, this article introduces a prototypical framework for the comparison of similarity algorithms for multimedia databases.
The Web is catalyzing a transition from PC-based software and file systems to Internet-based applications and Web services. We aim at the combination of multimedia computing and Web technologies (Web Services) togethe...
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ISBN:
(纸本)9780769538761
The Web is catalyzing a transition from PC-based software and file systems to Internet-based applications and Web services. We aim at the combination of multimedia computing and Web technologies (Web Services) together that supports uniform naming, protection, and access for multimediacontent objects stored by Web services to accomplish distributed computing. At a high level, it creates an integrated file and object system from heterogeneous, multimediacontent objects dispersed across the Internet. Based on this fact, we proposed a novel framework of distributed multimedia computing in this paper. In this framework, the concept of workflow which can describe business processes logically is introduced. Some experiments show the effectiveness of the proposed framework.
We propose a linear time algorithm, referred to as SIMvs, for processing spatial similarity queries in multimedia databases. SIMvs computes the degree to which the spatial relationships among the objects in a database...
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We propose a linear time algorithm, referred to as SIMvs, for processing spatial similarity queries in multimedia databases. SIMvs computes the degree to which the spatial relationships among the objects in a database image conform to those specified in the query. SIMvs recognizes translation, scale, rotation variants of an image and variants generated by an arbitrary composition of translation, scale, and rotation transformations. Performance of SIMvs is compared with those of two previously known algorithms using a testbed image collection. This comparison demonstrates that SIMvs is not only more efficient but performs as well as or better than the other algorithms.
There is an increasing demand in multimedia information systems for a passage retrieval facility that permits extracting individual excerpts of multimedia documents. In this paper, we propose an effective technique fo...
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There is an increasing demand in multimedia information systems for a passage retrieval facility that permits extracting individual excerpts of multimedia documents. In this paper, we propose an effective technique for multimedia passage retrieval. The approach is based on analyzing the full content of documents for the purpose of retrieving all multimedia passages that satisfy a query description. The proposed approach demonstrates that fast and effective retrieval of multimedia information is possible, despite the large amount of data involved in multimedia documents.
This paper presents the optimization of the reorganisation algorithms of hybrid index structures supporting multimedia search conditions. multimedia in this case refers to, on the one hand, the support of high dimensi...
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ISBN:
(纸本)9789897580352
This paper presents the optimization of the reorganisation algorithms of hybrid index structures supporting multimedia search conditions. multimedia in this case refers to, on the one hand, the support of high dimensional feature spaces and, on the other, the mix of data of multiple types. We will use an approach which may typically be found in geographic information retrieval (GIR) systems combined of two-dimensional geographical points in combination with textual data. Yet, the dimensions of the points may be arbitrarily set. Currently, most of these access methods implemented for the use in database centric application domains are validated regarding their retrieval efficiency in simulation based environments. Most of the structures and experiments only use synthetic validation in an artificial setup. Additionally, the focus of these tests is to validate the retrieval efficiency. We implemented such an indexing method in a realistic database management system and noticed an unacceptable runtime behaviour of reorganisation algorithms. Hence, a structured and iterative optimization procedure is set up to make hybrid index structures suitable for the use in real world application scenarios. The final outcome is a set of algorithms providing efficient approaches for reorganisations of access methods for hybrid data spaces.
On-demand multimedia is a pervasive part of our lives. content of all types is available from websites such as YouTube, Hulu, and Pandora. Individuals consume this content using home entertainment systems, personal co...
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An integrated, reconfigurable, adaptable and open system for mining, indexing and retrieving multimedia information based on a mobile agent technology scheme is presented. The system consists of three integral subsyst...
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ISBN:
(纸本)0780393317
An integrated, reconfigurable, adaptable and open system for mining, indexing and retrieving multimedia information based on a mobile agent technology scheme is presented. The system consists of three integral subsystems, namely the acquisition, the transformation and the distribution modules. Innovative algorithms are used to extract information from web sources, transform it and deliver it to the end users. The system supports efficient content adaptation mechanisms, textual and visual summarization schemes (both sequential and hierarchical), automatic language translation, ontological representation, visual processing and web-based data mining. Experimental analysis on real-life web sites has been performed to test the efficiency of the proposed scheme and compare it with other approaches presented in the literature.
作者：
Iyengar, GIBM Corp
Thomas J Watson Res Ctr Giridharan Iyengar Human Language Technol Yorktown Heights NY 10598 USA
The focus of this paper is to facilitate access into an important class of multimediacontent: unscripted and causally shot home videos. Unlike scripted video (such as movies and commercials), video that has been shot...
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ISBN:
(纸本)0819439894
The focus of this paper is to facilitate access into an important class of multimediacontent: unscripted and causally shot home videos. Unlike scripted video (such as movies and commercials), video that has been shot for the simple purpose of recording an event or place has no structure to facilitate its access. Our approach to tackling the unstructured video problem is to use clustering techniques to create multiple groupings of the video. We describe two clustering algorithms in this paper, which assume fairly general probability density descriptions of video. In addition, we describe an application built upon these clustering algorithms that enables browsing and rescripting unstructred content.
The EATHRONE project proposes an integrated management solution that covers the entire audiovisual service distribution chain, including protected content handling, distribution across networks and reception at user t...
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ISBN:
(纸本)9781424419678
The EATHRONE project proposes an integrated management solution that covers the entire audiovisual service distribution chain, including protected content handling, distribution across networks and reception at user terminals. The aim is not to unify or impose a strategy on each individual entity of the chain, bid to harmonise their functionality, in order to support an end-to-end Quality of Service (QoS) architecture over heterogeneous networks, applied to a variety of audio-visual services that are delivered to various user terminals. To meet its objectives, the project is relying on an efficient, distributed and open management architecture for the end-to-end delivery chain The MPEG-21 data model is used to provide the common support for implementing and managing the resources functionalities. Furthermore, the MPEG-21 framework implementation in the project will contribute to the realisation of Universal multimediaaccess (UMA), which aims at achieving interoperable transparent access to multimedia resources from any type of client terminal or network and so, the rapid growing for online exchange of rich media resources.
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