FPGA技术在生物医学成像中的研究进展

Research Progress of FPGA Technology in Biomedical Imaging

数字图像处理技术和微电子集成电路的飞速发展,使实时动态生物医学成像成为可能.生物医学动态成像的关键是高的通讯带宽和快速的数据处理能力,FPGA(field programmable gate array)即现场可编程逻辑门阵列,为数字图像实时处理系统在算法、系统结构上提供了新的思路与方法.文中首先简单介绍FPGA的概念、特点及其发展历程,详细对比FPGA与通用处理器之间的性能指标,然后重点介绍常规生物医疗成像技术原理和FPGA在医疗领域高速成像技术方面的研究和应用情况,最后对FPGA在实时成像方面进行总结和展望.

With the rapid development of digital image processing technology and microelectronic integrated circuits,real-time dynamic biomedical imaging becomes possible.The key to biomedical dynamic imaging is high communication bandwidth and fast data processing capabilities.FPGA(field-programmable gate array)brings new methods and ideas for real-time digital image processing system in algorithm and system structure.This paper first briefly introduces the concept,characteristics and development process of FPGA,and compares FPGA and general-purpose processor in performance indicators,then focuses on the principles of conventional biomedical imaging technology and FPGA research and application of high-speed imaging technology in the biomedical imaging field,and finally summarized and prospected FPGA in real-time imaging.