Abstract: An approach was proposed to solve the problem of not accurately identifying the moving targets in the complex dynamic environment. The moving objects were detected by utilizing the method based on the HSV color space and auto-updating the background. The background subtraction method based on the HSV color space was used to solve the problem that the objects could not be accurately identified for the color similarity of objects and background and the influence of the shadow of the moving targets. The background change was divided into the temporary stability and the rapid change, and an automatically updating double background was used to deal with changing of the background. The change rate which indicated the degree of background was introduced to updating all or partial background. Experimental results show that this way accurately identifies the moving objects.

Key words: background subtraction, background updating, complex dynamic environment, shadow removal