Signal processing. Image communication : theory, techniques & applications, Vol. 25 N° 4. Signal processing. Image communication - Avril 2010
| Titre : | Signal processing. Image communication : theory, techniques & applications, Vol. 25 N° 4. Signal processing. Image communication - Avril 2010 |
| Type de document : | Bulletin |
| Paru le : | 16/09/2012 |
Dépouillements
Article : texte imprimé
Jan De Cock, Auteur ;
Stijn Notebaert, Auteur ;
Peter Lambert, Auteur
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In this paper, efficient solutions for requantization transcoding in H.264/AVC are presented. By requantizing residual coefficients in the bitstream, different error components can appear in the transcoded video stream. Firstly, a requantization[...]
Article : texte imprimé
Seung-Ho Shin, Auteur ;
Kyu-Ho Park, Auteur ;
Young-Joon Chai, Auteur
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H.264/AVC supports variable block motion compensation, multiple reference frames, 1/4-pixel motion vector accuracy, and in-loop deblocking filter, compared with previous video coding standards. While these coding techniques are major functions f[...]
Article : texte imprimé
P.R. Hill, Auteur ;
D. R. Bull, Auteur
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Modern video codecs such as MPEG2, MPEG4-ASP and H.264 depend on sub-pixel motion estimation to optimise rate-distortion efficiency. Sub-pixel motion estimation is implemented within these standards using interpolated values at 1/2 or 1/4 pixel [...]
Article : texte imprimé
Hoda Roodaki, Auteur ;
Tonko Ćurko, Auteur ;
Mohammad Ghanbari, Auteur
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In this paper joint optimization of layers in the layered video coding is investigated. Through theoretical analysis and simulations, it is shown that, due to higher interactions between the layers in a SNR scalable codec, this type of layering [...]
Article : texte imprimé
Junyong You, Auteur ;
Guizhong Liu, Auteur ;
Andrew Perkis, Auteur
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Semantic video analysis is a key issue in digital video applications, including video retrieval, annotation, and management. Most existing work on semantic video analysis is mainly focused on event detection for specific video genres, while the [...]
Article : texte imprimé
M. Bystrom, Auteur ;
I. Richardson, Auteur ;
S. Kannangara, Auteur
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The long timescale between the development of new technologies for video coding and their adoption into standards results in a slow improvement in compression efficiency despite the scale of ongoing research into new compression techniques. Stan[...]
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