Fast DCT Image Resizing and Video Compositing for Multi-Point Video Conferencing

作者: H. A. Ilgin , M. Voznak , L. F. Chaparro , H. G. İlk

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摘要: Video conferencing is a real time process that requires fast operations. In this paper Discrete Cosine Transform (DCT)-based video compositing structure for multi-point with DCT method integer and rational image resizing presented. Whole kept in the domain to avoid comprehensive Our procedure does not only improve speed but also quality of resized frames. Proposed illustrated compared other methods by means simulation results different sequences. Streszczenie. W artykule przedstawiono metode skladania obrazow, pochodzących z wielu źrodel, na potrzeby wideo-konferencji. Dzialanie oparte jest dyskretnej transformacji kosinusowej, ktorą wykorzystano do calościowego i wymiernego skalowania obrazu. Opracowany algorytm poprawia szybkośc dzialania oraz jakośc skalowania. Dokonane zostalo symulacyjne porownanie innymi metodami. (Szybkie skalowanie skladanie obrazow wideo wykorzystaniem wielopunktowej wideo-konferencji).

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