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Hardware Implementation of JPEG2000 Encoder for Video Compression

机译:用于视频压缩的JPEG2000编码器的硬件实现

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JPEG2000 is an upcoming compression standard for still images that has a feature set well tuned for the present wireless and internet age. These features are possible due to adaptation of discrete wavelet transform, fractional bit plane coding and arithmetic coding. All the three algorithms are computationally intensive and require substantial number of memory and arithmetic operations. In this paper we propose a system level architecture capable of encoding JPEG2000 algorithm. For Discrete Wavelet Transform (DWT), a lifting based DWT core for lossy compression is proposed which reduces the hardware cost and achieves the higher hardware utilization. For Embedded Block Coding with Optimized Truncation (EBCOT), column-based coding architecture of Tier-1 block coding engine is discussed. The system architecture has been implemented using VHDL and synthesized for Xilinx Virtex-II FPGA with estimated frequency of 50 MHz.
机译:JPEG2000是静止图像的即将到来的压缩标准,其具有用于当前无线和互联网时代的功能良好调整的功能集。由于对离散小波变换,分数位平面编码和算术编码的适配,这些特征是可能的。所有三种算法都是计算密集的,需要大量的内存和算术运算。在本文中,我们提出了一种能够编码JPEG2000算法的系统级架构。对于离散小波变换(DWT),提出了一种用于有损压缩的基于升降的DWT核心,这降低了硬件成本并实现了更高的硬件利用率。对于利用优化截断(EBCOT)的嵌入式块编码,讨论了Tier-1块编码引擎的基于列的编码架构。系统架构已经使用VHDL实现,并为Xilinx Virtex-II FPGA合成,估计频率为50 MHz。

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