| 码流分配决策的VHDL实现及仿真 |
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| 引用本文： | 王海荣,邓家先,易巧玲.码流分配决策的VHDL实现及仿真[J].通信技术,2010,43(4):4-6. |
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| 作者姓名： | 王海荣 邓家先 易巧玲 |
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| 作者单位： | 海南大学,信息科学与技术学院,海南,海口,570228 |
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| 摘 要： | 为解决图像码流庞大带来的存储和传输困难,提出了一种针对多路图像译码的码流分配决策,并采用VHDL语言来实现。码流分配前,对图像头文件进行检测,采用两片外挂RAM对检测后的码流进行乒乓操作后,送入多路并行图像处理模块,处理后的码流采用同样的分配方式进行缓存。结果表明该决策真正实现了图像码流传输的实时性和准确性,而且其可移植性强,可以应用到图像处理的很多领域,成为提高码流缓存和传输速度的桥梁。
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| 关 键 词： | 码流分配 多路并行 乒乓操作 现场可编程逻辑门阵列 超高速集成电路硬件描述语言 |
VHDL Implementation and Simulation of Code-stream Assignment Policy |
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| WANG Hai-rong,DENG Jia-xian,YI Qiao-ling.VHDL Implementation and Simulation of Code-stream Assignment Policy[J].Communications Technology,2010,43(4):4-6. |
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| Authors: | WANG Hai-rong DENG Jia-xian YI Qiao-ling |
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| Affiliation: | WANG Hai-rong,DENG Jia-xian,YI Qiao-ling (Information Science , Technology School,Hainan University,Haikou Hainan 570228,China) |
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| Abstract: | In order to resolve difficulties in storage and transmission produced by the huge image code-stream,a code-stream assignment policy for multi-channel image coding is proposed,and implemented with VHDL.Before assigning code-stream,the image header file is detected,the Ping-Pong operation on the detected code stream carried out by using 2 expanded RAM,then sent to the multi-channel parallel image processing module.The processed code-stream is also stored with the same way.The experiment results indicate that ... |
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| Keywords: | code-stream assignment multi-channel parallel ping-pong operation FPGA VHDL |
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