节点文献
JPEG2000自适应算术编码器FPGA设计
FPGA Design of Adaptive Arithmetic Encoder for JPEG 2000
【摘要】 研究JPEG2000标准中自适应算术编码器的硬件实现问题,提出一种适合ASIC实现的并行结构,并在FPGA上对其进行了仿真验证.该设计使用VHDL语言在RTL级描述;并以XILINXXC2V8000-5FF1152为基础,在ISE5.2下完成综合及后仿真.在整个JPEG2000设计中,最高工作时钟66MHz,自适应算术编码器处理速度可达到0.25bit/cycle.
【Abstract】 FPGA implementation of the adaptive arithmetic encoder in JPEG2000 standard is investigated. A parallel architecture suitable for ASIC implementation is presented, which is simulated and verified on FPGA.The design is described with VHDL at RT level. Based on XILINX XC2V8000-5FF1152, synthesis and postsimulation are conducted with ISE 5.2. The JPEG 2000 encoder system works at 66 MHz, it costs the adaptive arithmetic encoder about 1 cycle to encode 0.25 bit.
【关键词】 JPEG2000;
嵌入式块编码;
算术编码器;
FPGA;
图像压缩;
硬件描述语言;
【Key words】 JPEG 2000; EBCOT; arithmetic encoder; FPGA; image compression; VHDL;
【Key words】 JPEG 2000; EBCOT; arithmetic encoder; FPGA; image compression; VHDL;
【基金】 国家部委预研项目(41308010408)
- 【文献出处】 北京理工大学学报 ,Journal of Beijing Institute of Technology , 编辑部邮箱 ,2005年03期
- 【分类号】TN79
- 【被引频次】9
- 【下载频次】373