基于DSP和FPGA技术的细胞图像采集系统设计

Design of cell image acquisition system based on DSP and FPGA technology

细胞学研究领域中需要对大量细胞的生长情况进行长期的在线跟踪、记录和分析,针对细胞图像采集和处理中的数据量大、采样频率高、运算复杂等问题,设计了一种新颖的细胞图像采集系统,讨论了DSP(Digital Signal Processor)处理系统和FPGA(Field Program-mable Gate Arrays)逻辑控制系统设计中的关键技术问题,以及JPEG图像压缩算法的实现问题.系统主要由视频解码芯片、FPGA以及DSP等组成,具有功能集成、结构简单、编程灵活的特点,能够实现对大量细胞进行长期观测记录的图像采集,以及后期图像数据处理的功能.

It is a problem to trace and record the growth of the large number of cells manually for a long time. Aiming at the mass data, high sampling frequency, complex caculation and other problems in cell image transmission, a novel method of video image acquisition is described. The key problems in the design of DSP （digital signal processors） system and FPGA （field programmable gate arrays） logic control system and the implementation of JPEG image compression algorithm are also discussed. The system basically consisted of enhanced video input processor, FPGA, DSP and other components. It is favorable for its integrated functions, simple structures and flexible complier. It provides a solution for the image acquisition of long time tracing and recording lagre number of cells, and also has the function of after image processing.