Videodigital Codificacao
Mostrando 1-5 de 5 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. Contribuições em codificação de imagens e vídeo = : Contributions in image and video coding / Contributions in image and video coding
A comunidade de codificação de imagens e vídeo vem também trabalhando em inovações que vão além das tradicionais técnicas de codificação de imagens e vídeo. Este trabalho é um conjunto de contribuições a vários tópicos que têm recebido crescente interesse de pesquisadores na comunidade, nominalmente, codificação escalável, codificação
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/11/2011
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3. Uma proposta de estimação de movimento para o codificador de vídeo Dirac / A proposal of motion estimation for Dirac video codec
The main purpose of this work is to design a new algorithm which enhance motion estimation in Dirac video codec. Motion estimation is a critical stage in video coding, in which most of the processing lies. Dirac codec, recently released, is based on techniques different from the usually employed (as in MPEG-based codecs). Dirac video codec aims at achieving
Publicado em: 2010
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4. Sistema de codificação de video baseado em transformadas tridimensionais, rapidas e progressivas / Video coding system based on three dimensional, fast and progressive transforms
The research on video coding systems has always been looking for techniques that can reach the highest possible compression rate. This compression rate increase is generally achieved by means of increased coding complexity, which is supported by the continuous increase verified in computational power. However, in some video coding and transmission situations
Publicado em: 2007
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5. Metadados em multimidia : aplicações e conceitos em MPEG-7 / Multimidia metadata concepts and applications in MPEG-7
In this work, a research was made in order to present Metadata (or data about data) and specifically Multimedia Metadata applications with the MPEG-7 standard as the basis. At first, the theory concerning Metadata in general and Multimedia Metadata in particular is presented, with the purpose to prepare the reader for its uses, specially with the current exp
Publicado em: 2007