摘要
提出了一种基于USB2.0的DMA方式下实现医用超声内窥镜高速图像采集的新方法。该方法以CPLD(复杂可编程逻辑器件)作为数据传输的控制核心,并采用了外部高速缓存模块以实现数据传输的完整性,结构简单,灵活性强,方便易行,完全满足医用超声内窥镜系统实时显示图像的要求。该设计可被广泛的应用于要求高精度高速实时数据采集的场合。
Based on USB2.0 Specification, a novel method for implementing high-speed image acquisition in medical ultrasonic endoscope by DMA is proposed. Using CPLD（Complex Programmable Logic Device）as the primary controller for data transferring, this method utilizes high-speed external storage module to guarantee the completeness of the data. With the advantages of simple structure, nice flexibility and convenience, it satisfies the demand for real-time displaying in this system. The design can be applied broadly in the field of high-precision and high-speed real-time data acquisition.
出处
《传感技术学报》
EI
CAS
CSCD
北大核心
2006年第3期621-624,共4页
Chinese Journal of Sensors and Actuators
基金
天津市社发项目'医用超声内窥镜关键技术与产品开发'资助(O5YFSYSF01600)
教育部重点项目'医用超声内窥镜关键技术与数字化研究'资助(106048)
