Name
Abstract | ||
|---|---|---|
Multimedia data delivered to mobile devices over wireless channels or the Internet are complicated by bandwidth fluctuation and the variety of mobile devices. Scalable video coding has been developed as an extension of H.264/AVC to solve this problem. Since scalable video codec provides various scalabilities to adapt the bitstream for the channel conditions and terminal types, scalable codec is one of the useful codecs for wired or wireless multimedia communication systems, such as IPTV and streaming services. In such scalable multimedia communication systems, video quality fluctuation degrades the visual perception significantly. It is important to efficiently use the target bits in order to maintain a consistent video quality or achieve a small distortion variation throughout the whole video sequence. The scheme proposed in this paper provides a useful function to control video quality in applications supporting scalability, whereas conventional schemes have been proposed to control video quality in the H.264 and MPEG-4 systems. The proposed algorithm decides the quantization parameter of the enhancement layer to maintain a consistent video quality throughout the entire sequence. The video quality of the enhancement layer is controlled based on a closed-form formula which utilizes the residual data and quantization error of the base layer. The simulation results show that the proposed algorithm controls the frame quality of the enhancement layer in a simple operation, where the parameter decision algorithm is applied to each frame. |
Year | DOI | Venue |
|---|---|---|
2011 | 10.1109/TIP.2011.2126583 | IEEE Transactions on Image Processing |
Keywords | Field | DocType |
scalable video coding (svc),mpeg-4 system,wireless multimedia communication system,mobile communication,closed-form formula,wireless channel condition,video quality,rate control,video quality control,audio coding,mobile device,whole video sequence,iptv service,video quality fluctuation,iptv,bandwidth fluctuation,consistent video quality,rate control scheme,quantisation (signal),quantization error,scalable video coding,internet,enhancement layer quality fluctuation,quantization parameter,video coding,enhancement layer,image sequences,proposed algorithm,parameter decision algorithm,multimedia data delivery,streaming service,video streaming,visual perception,scalable multimedia communication,h.264-avc,frame quality,error statistics,multimedia communication,scalable video codec,video sequence,video codecs,scalability,encoding,quantization,psnr,codecs,static var compensator | Block-matching algorithm,Computer science,Multiview Video Coding,Real-time computing,Video tracking,Video quality,Codec,Rate–distortion optimization,Scalable Video Coding,Uncompressed video | Journal |
Volume | Issue | ISSN |
20 | 8 | 1941-0042 |
Citations | PageRank | References |
6 | 0.47 | 19 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Chan-Won Seo | 1 | 33 | 2.18 |
| Jong-ki Han | 2 | 108 | 14.27 |
| T. Q. Nguyen | 3 | 375 | 36.41 |