讨论了两种常用的低信噪比图像序列能量累加算法,一种是针对帧间运动速度较小的多帧累加;一种是针对帧间运动速度较大的形态膨胀累加,并给出了这两种算法的FPGA电路实现框图。实验结果表明,设计的电路结构简单、流程清晰、实时性强、外部器件少、可扩展、可移植,并在实际应用中取得了较好的效果。 Two commonly used energy accumulation algorithms for image sequences with low signal-to-noise ratios are discussed. One is for multi-frame accumulation with a small inter-frame motion rate. The other is for the accumulation of morphological expansion with a large inter-frame motion rate. FPGA circuit implementation of these two algorithms diagram. The experimental results show that the circuit design is simple, the process is clear, real-time, less external components, scalable, portable, and achieved good results in practical applications.