Multimedia Information Retrieval
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Recuperação de vídeos comprimidos por conteúdo / Content-based retrieval of compressed videos
Recent advances in the technology have enabled the increase of the availability of video data, creating large digital video collections. This has spurred great interest in systems that are able to manage those data in a efficient way. Making efficient use of video information requires the development of powerful tools to extract high-level semantics from low
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/11/2011
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2. RAVE au DISCO: recomendaÃÃo automÃtica de vÃdeo como auxÃlio no processo de disseminaÃÃo do conhecimento
In recent years, we have observed a significant growth in the production of multimedia content. It is remarkable to highlight that much of such content is spread out using the Internet infrastructure. However, some characteristics of the content access have made non-trivial the process of lookup for and retrieval of content. Difficulties to access multimedia
Publicado em: 2009
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3. Anotação automática e recomendação personalizada de documentários brasileiros : sistema DocUnB
Apresentação de um sistema para a Recomendação Personalizada de vídeos em Arquivos Audiovisuais, viabilizado em um modelo capaz de obter índices de conteúdo em entidades multimídia e compará-los aos conteúdos de sites da Internet, de forma a direcionar a visualização de filmes documentários. O sistema implementa agentes de software com capacidad
Publicado em: 2009
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4. Treatment of time and dynamics in dta represented in metric spaces / Tratamento de tempo e dinamicidade em dados representados em espaços métricos
Nowadays, the Database Management Systems (DBMS) must be able to manage complex data, such as multimedia data, genetic sequences, temporal series, besides the traditional data. For queries on large collections of complex data, the similarity among elements is the most relevant concept, and it can be adequately expressed when data are represented in metric sp
Publicado em: 2009
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5. Um framework para a consulta a repositórios de vídeo digitais
The Information Retrieval Systems (IR) were constructed for easier access to information in a repository of data, offering resources for organizing, indexing and retrieval of data. These repository can contain any digital information such as documents, files, music or videos. In a repository of videos, the IR systems have difficult to index the information b
Publicado em: 2008
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6. Bulk-loading Dynamic Metric Acess Methods / Operação de carga-rápida (bulk-loading) em métodos de acesso métricos
The similarity degree between data elements is the primordial factor for information retrieval in databases that handle complex data, such as genetic sequences, time series and multimedia objects (long images, audio, videos, texts). To answer these queries in a reduced time, it is necessary methods that use metrics to evaluate the similarity between elements
Publicado em: 2007
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7. Sumarização de vídeos de futebol com baixo custo computacional utilizando ritmo visual : descritores de cor e movimento de câmara
The growth of multimedia contents production has created the necessity of new techniques for efficient storage and retrieval of these contents. The area of Content Based Image Retrieval is a research field whose goal is to develop Computer Vision based methods for indexing and retrieval of images and videos. Visual features such as color, shape, texture and
Publicado em: 2006
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8. Shot-boundary detection on video / "Segmentação automática de tomadas em vídeo"
Visual content based information retrieval is an area of increasing importance due to the large volume of available material (digital images and videos), shared and distributed mainly by the internet, and the processing power achieved by personal computer in the last ten years. New ways to consume digital video and to manipulate and explore its visual inform
Publicado em: 2004
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9. Sistemas de informação multimídia na preservação de acervos permanentes
Abstract The documental preservation is a key activity for historical analysis and for building the cultural identity of nations. However this task faces the challenge of classifying and storing huge amounts of documents, and the severe compromise between conservation and access. Digital technology offers the possibility of breaking this compromise, by suppl
Publicado em: 2003
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10. Hyper Friburgo: um sistema hyper texto baseado em agentes inteligentes para informações turísticas / Hyper Friburgo: a hyper text system based on intelligent agents for touristic informations
Nova Friburgo is a Brazilian tourist city, which attracts different types of visitors. This dissertation describes an intelligent system to be installed at a tourist information center for assisting those who need directions to this citys major attractions. Currently, there is an ordinary multimedia application for tourism support but such system is being ex
Publicado em: 1999
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11. Metadata utilization in the video servers access management. / Utilização de metadados no gerenciamento de acesso a servidores de vídeo.
The experience with authoring multimedia material for educational purposes shows a major problem: how to provide an easy and efficient way to handle multimedia objects in a manner that non-expert users (namely school teachers) can be able to design and build their own presentations? The creation of this presentations involves factors like storage, delivery,
Publicado em: 1998
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12. Building a medical multimedia database system to integrate clinical information: an application of high-performance computing and communications technology.
The rapid growth of diagnostic-imaging technologies over the past two decades has dramatically increased the amount of nontextual data generated in clinical medicine. The architecture of traditional, text-oriented, clinical information systems has made the integration of digitized clinical images with the patient record problematic. Systems for the classific