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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ramos, F.L.L. Zatt, B. Silva, T.L. Susin, A. Bampi, S. |
| Copyright Year | 2010 |
| Description | Author affiliation: PPGC-PGMicro-GME-Informatic Institute(II), UFRGS - Federal University of Rio Grande do Sul, Porto Alegre, Brazil (Ramos, F.L.L.; Zatt, B.; Silva, T.L.; Susin, A.; Bampi, S.) |
| Abstract | This work proposes a new hardware architecture for the H.264/AVC CAVLC (Context-Based Adaptive Variable Length Coding) entropy encoder. The architecture is composed of a macro-pipeline formed by 3 stages: (i) Scan, (ii) Encoding and (iii) Assembler. Our architecture employs a new scheme to process two coefficients each cycle at the Scan stage. Thus, the fixed bottleneck at this stage is eliminated obtaining a significant performance gain compared to related works. In order to allow this increase in performance, the proposed architecture also processes in a two-way parallel hardware the most frequent syntactic elements (Level and Run_Before) of the algorithm. The synthesis for Xilinx Virtex-5 FPGAs demonstrates that the proposed architecture is able to reach the performance for real-time HDTV encoding while running at 60 MHz. At its maximum frequency, our design is able to achieve the encoding of 115 HD1080p fps (frames per second) in FPGA implementation. |
| Starting Page | 587 |
| Ending Page | 590 |
| File Size | 1074442 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424481552 |
| e-ISBN | 9781424481576 |
| DOI | 10.1109/ICECS.2010.5724580 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-12-12 |
| Publisher Place | Greece |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Radiation detectors Mobile communication ISO standards Wireless sensor networks Time frequency analysis FPGA CAVLC H.264/AVC Video Enconding Architecture |
| Content Type | Text |
| Resource Type | Article |
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