关键词: 混合高斯模型, 运动目标检测, 四帧差分, 学习率

Abstract: Aim at the disadvantages of traditional mixture Gaussian model in moving object detection, an improved moving object detection method based on mixture Gaussian model is proposed. It solves the problem affected by the illumination mutations and the traditional frame difference is easily affected by double shadow which combines the improved mixture Gaussian model and four-frame subtraction. The improved mixture Gaussian model adjusts the numbers of the Gaussian distribution adaptively and improves the accuracy of the background description. This paper discusses the motion state of the object and different learning rates are set to improve the effect of slow-moving object detection. Experimental results show that the combined algorithm can detect moving object accurately and has better adaptability in complex scenes.

Key words: mixture Gaussian model, moving object detection, four-frame subtraction, learning rate