Name
Title | ||
|---|---|---|
SNR scalability based on bitplane coding of matching pursuit atoms at low bit rates: fine-grained and two-layer |
Abstract | ||
|---|---|---|
Because channel capacity varies depending on network traffic and the capacity of each reception, fine granularity scalability (FGS) of video coding has emerged as an important area in multimedia streaming applications. We propose an FGS video codec and a two-layer signal-to-noise ratio (SNR) scalable video codec, based on matching pursuits and bitplane coding. The temporal and spatial redundancy of atom positions between adjacent bitplanes are explored using the quadtree representation for a bitplane and the quadtree prediction algorithm. The efficiency of encoding atom positions is evaluated. Our FGS combines successive bitplane quantization of atom modula and quadtree prediction of atom positions. The performance of our FGS is compared with that of the discrete-cosine-transform-based FGS codec. The quality of a base layer or enhancement layer video in a two-layer scalable video codec can be adjusted without changing the bit rates. We propose using a combined frame obtained from the combination of the reconstructed base layer and enhancement layer images to estimate motion vectors. The performance of our two-layer codec is illustrated. |
Year | DOI | Venue |
|---|---|---|
2005 | 10.1109/TCSVT.2004.839997 | IEEE Trans. Circuits Syst. Video Techn. |
Keywords | Field | DocType |
atom modula,fgs video codec,base layer,fine granularity scalability (fgs),video codec,quadtrees,network traffic,streaming,bitplane coding,motion vector estimation,two-layer signal-to-noise ratio,matching pursuits (mps),fine-grained scalability,two-layer codec,bitplane quantization,atom position,two-layer scalable video codec,multimedia streaming,motion estimation,image reconstruction,discrete cosine transforms,matching pursuit atom,quadtree prediction algorithm,snr scalability,video coding,low bit rate,channel capacity,discrete-cosine-transform-based fgs codec,pursuit atom,telecommunication traffic,discrete-cosine transform,two-layer,image enhancement,enhancement layer video,multimedia communication,scalable video codec,atoms,video codecs,signal to noise ratio,matching pursuit,discrete cosine transform | Matching pursuit,Computer vision,Computer science,Signal-to-noise ratio,Artificial intelligence,Motion estimation,Quantization (signal processing),Channel capacity,Codec,Scalability,Quadtree | Journal |
Volume | Issue | ISSN |
15 | 1 | 1051-8215 |
Citations | PageRank | References |
9 | 0.76 | 16 |
Authors | ||
3 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jian-Liang Lin | 1 | 9 | 0.76 |
| Wen-Liang Hwang | 2 | 429 | 58.03 |
| Soo-Chang Pei | 3 | 60 | 6.87 |