|International Workshop on Local and Non-Local Approximation in Image Processing, LNLA 2008, Lausanne, Switzerland
|IEEE, EURASIP, Tampere International Center for Signal Processing (TICSP), EUSIPCO2008
|Andreas Krutz, Alexander Glantz, Michael Frater, Thomas Sikora
|Local Background Sprite Generation
|Background modeling of video sequences can be used in
many different applications. For video object segmentation
it is often applied in a background subtraction method.
When conventional sprites like single or multiple sprites
are used a background sequence has to be reconstructed
from the model. The double mapping into the coordinate
system of the sprite and back can lead to severe distortion
of the background model and therefore to erroneous segmentation masks. We present a novel background modeling
approach that lessens distortion. These so-called local
background sprites are built for every reference frame independently and fit its original size. Experimental results show that this new approach clearly outperforms conventional background sprites in terms of PSNR.
|Background Sprite Generation, Image Registration, video object segmentation, sprites, psnr