Name
Title | ||
|---|---|---|
Combined CAVLC Decoder, Inverse Quantizer, and Transform Kernel in Compact H.264/AVC Decoder |
Abstract | ||
|---|---|---|
In this paper, a combined kernel architecture for efficiently decoding the residual data in the H.264/AVC baseline decoder is proposed. The kernel architecture in the H.264/AVC decoder consists of context-based adaptive variable length code (CAVLC) decoder, inverse quantization (IQ), and inverse transforms (IT) units. Since the decoding speeds of these kernel units vary with data, traditional methods require data buffers between these units. The first proposed architecture efficiently combines CAVLC decoding and IQ procedures. The multiple 2-D transforms architecture is applied to all inverse transforms, including the 4times4 inverse integer transform, the 4times4 inverse Hadamard transform and the 2times2 inverse Hadamard transform, to attain fewer gate counts than those of existing transform designs. Simulation results show that the total number of gates is 14.1 k and the maximum operating frequency is 130 MHz. For real-time requirements, in the worst case, the proposed architectures can achieve the operation speed of the H.264/AVC decoder up to 4VGA@30 frames/sec in 4:2:0 format. |
Year | DOI | Venue |
|---|---|---|
2009 | 10.1109/TCSVT.2008.2009251 | IEEE Trans. Circuits Syst. Video Techn. |
Keywords | Field | DocType |
residue decoder,inverse integer,inverse hadamard,inverse hadamard transform,inverse integer transform,combined kernel architecture,inverse quantizer,adaptive decoding,data buffer,variable length codes,operating system kernels,proposed architecture,inverse quantization,combined cavlc decoder,multiple 2d transforms,hadamard transforms,vlsi,video coding,compact h.264/avc decoder,kernel architecture,transform kernel,avc decoder,h264/avc,avc baseline decoder,compact h.264,cavlc decoding,context-based adaptive variable length code,very large scale integration,video compression,quadratic programming,kernel,quantization,real time,decoding,variable length code | Context-adaptive variable-length coding,Computer science,Algorithm,Soft-decision decoder,Decoding methods,Kernel method,Quantization (signal processing),Hadamard transform,Adaptive coding,Variable-length code | Journal |
Volume | Issue | ISSN |
19 | 1 | 1051-8215 |
Citations | PageRank | References |
6 | 0.63 | 18 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yi-chih Chao | 1 | 27 | 4.27 |
| Shih-tse Wei | 2 | 21 | 3.13 |
| Bin-da Liu | 3 | 563 | 66.56 |
| Jar-Ferr Yang | 4 | 1115 | 142.85 |