文档介绍：华中科技大学
硕士学位论文

姓名:杨东
申请学位级别:硕士
专业:微电子学与固体电子学
指导教师:刘政林
20090525
华中科技大学硕士学位论文
摘要
-4第十部分或AVC,是目前最新的视频编码标准。和早期
的视频编码标准一样,,这必然会在宏块的边界处产
生块效应,影响最大的块效应来自离散余弦变换,另一个重要来源是运动补偿。去
块滤波的引入减小了块效应的影响,提高了编码效率和图像的主客观质量,本文主
。
本论文从实际工程应用出发,
了研究和讨论,:采用改进的滤波顺
序、五级流水线技术和低功耗设计。提高了运算速度和数据吞吐率的同时减少占用
过多的片内资源,降低了系统的功耗。在设计去块滤波模块过程中,给出整个去块
滤波系统的内部结构、功能模块划分,再对各个模块的实现进行详细的描述,进而
完成了整个去块滤波模块的设计。
本论文的模块设计利用了Verilog硬件描述语言,按照正向设计的流程,最终得
出了模块的整体代码。利用Modelsim仿真验证成功,并且利用Xilinx ISE综合实现。
在Virtex II-Pro FPGA上其占用约7%的LUT,工作频率最高达到了174MHz,吞吐率达
,与已有的设计相比性能显著提高。仿真结果表明设计的模块达到了
预期的要求,,可以满足其实时的滤波要
求,具有一定的使用价值。本文的设计还存在缺陷和不足,仍然需要进一步的改进。

关键词:,去块滤波,Verilog硬件描述语言

I
华中科技大学硕士学位论文
Abstract
, also known as MPEG-4 part 10 or Advanced Video Coding, is a recent video
compression technique. Like the earlier video coding standards, utilize block-based
algorithms which inevitably introduce blocking artifacts along block boundaries. The most
significant source of blocking artifacts is the block based DCT in intra and inter frame
error coding. The second source is pensated prediction. Therefore, deblocking
filter is required to reduce these annoying blocking artifacts and effectively improve
coding efficiency and enhance both subjective and objective picture quality. The design of
the deblocking filter is introduced in this thesis.
According to practical application, this dissertation does thorough research on
and the deblocking filter, and proposes an optimized deblocking filter:
Improved hybrid edge filter order, pipelining and power efficiency is made to increase the
system performance. Through the optimization of structures and algorithms, the speed and
data throughput are improved, and the consumable of the chip’s scarce resources and
power of the deblocking filter are