针对智能交通系统中运动目标检测阶段存在的不足，提出了一种基于自适应混合高斯模型（ＧＭＭ）的改进算法。-For the deficiencies of the intelligent transportation system moving target detection stage, an improved algorithm based on adaptive Gaussian mixture model (GMM).

Using the grey system theory to design the adaptive PID control.