一种基于传输触发架构的中值滤波处理器  

A Median Filtering Processor Based on Transport Triggered Architecture

作　　者：白松辉[1] 史再峰[2] 郭炜[1] 魏继增[1] 

机构地区：[1]天津大学计算机科学与技术学院,天津300072 [2]天津大学电子信息工程学院,天津300072

出　　处：《微处理机》2012年第1期71-74,共4页Microprocessors

摘　　要：针对中值滤波算法速度慢的缺点,设计了一款基于传输触发架构的专用处理器,使得中值滤波的速度得到了大幅度的提升。其中数据存取单元采用二维寻址方式,与通用处理器相比,寻址时减少了加法指令和乘法指令的使用,提高了数据存取速度;设计了专用排序功能单元,与通用处理器相比减少了比较和跳转指令的使用。仿真和验证结果表明,在图像中值滤波处理中,该处理器比传统RISC架构通用处理器的效率有较大的提高。In order to solve the problem that the speed of classical median filter was slow,this paper proposed a specific processor based on Transport Triggered Architecture,which substantially improved the speed of median filtering process.Compared with the general purpose processors,this processor introduced two dimension addressing mode accessing to the data memory in its data storage unit.It reduced the use of addition and multiplication instruction in addressing data memory hereby increasing the data addressing speed.A special sorting function unit is proposed in this processor,which can decrease the loadage demand of compare jump instruction in sorting algorithm.The simulation and verification results show that this processor has greatly improved the efficiency of medium filter processing compared with the traditional general-purpose processor used RISC architecture.

关 键 词：中值滤波 传输触发架构 可配置处理器 快速算法 图像处理 

分 类 号：TP37[自动化与计算机技术—计算机系统结构]