摘要
为了实现实时便携式脱机稳像,设计了一种基于TI公司C6711DSP芯片的实时数字图像稳定系统.该系统由两个双端口RAM芯片作为数据输入和输出的高速缓存,通过4个Bank信号在8bit和32bit间进行数据转换,由CPLD进行处理逻辑和视频同步控制.系统工作时,通过对片内cache中数据区和程序区的合理分配,并使用EDMA技术进行数据传输,达到高速处理的目的.结果表明,使用内联函数和线性流水技术,可加快算法软件的执行速度,实现了25帧/s的实时图像稳定处理.
In order to realize digital image stabilization in real-time, a image processing board with TI C6711 DSP is designed. In this system, two dual-port RAM chips are respectively used as in- and out- cache for data transference, with data switching from 8 bits to 32 bits using 4 banks, and a CPLD chip responsible for the core logic controlling and video synchronization. The inter chip cache is configured in an efficient way, and EDMA is used for data transferring. Inner functions and linear stream technologies are discussed for software optimization, thus accelerates the algorithm execution. Real-time digital image stabilization is in this way realized.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2004年第5期435-438,共4页
Transactions of Beijing Institute of Technology
基金
国家部委基金资助项目(03001070302)
关键词
稳像系统
DSP
运动估计
实时图像处理
image stabilization system
DSP
motion estimation
real-time image processing
