摘要
针对三值光计算机解码模拟器需要对光学运算器的运算结果进行高速、可靠、实时地采样、A/D转换和图像采集问题,设计研制了一个USB型图像采集系统。该系统以嵌入式微处理器S3C44B0X和CMOS图像传感器OV7660为核心。前端图像光信号采样、A/D转换和数字数据输出处理采用CMOS图像传感器OV7660完成,后端的图像采集和传输采用嵌入式微处理器S3C44B0X和USB2.0,使系统具有高速、实时和连接灵活方便的特点。为保证图像采集和传输的可靠性,采用了事务处理机制。实验结果表明,系统工作稳定、性能良好,处理速度可达20MB/s。
To acquire real-time output optical signal from optical processor, a new image acquiring system is introduced based on the decoding simulator of ternary optical computer. It is a system with cores of the 32-bits embedded microprocessor and CMOS image sensor OV7660. PC runs with microprocessor synchronously. Images＇signal sampling, A/D conversion, outputting and processing of digital data of the front end were processed by CMOS image sensor OV7660, and image acquiring and transmitting of back end were carried out by using embedded microprocessor S3C44BOX and USB2. 0. High-speed, real time and flexible connecting were achieved in this system. Mechanism of transaction processing ensures the reliability of image acquiring and transmitting. The experiment result demonstrates this system is steady, and the image processing speed reaches 20 MB/s.
出处
《半导体光电》
EI
CAS
CSCD
北大核心
2008年第6期949-952,共4页
Semiconductor Optoelectronics
基金
国家自然科学基金项目(60473008)
安徽省高等学校青年教师科研资助计划项目(2007jq1062)
上海市教委发展基金项目(04AB38)
上海大学博士点建设基金项目
