Method and system for evaluating effective analysis area of image

The invention relates to a method for evaluating an effective analysis area of an image, which is used for carrying out image analysis on a continuous image of a specific scene to obtain detectable object or event information in the continuous image so as to generate a closed effective analysis area, so that the load of image analysis when the specific scene is actually monitored is reduced. 一种评估影像有效分析区域的方法，该方法针对一特定场景的连续影像作影像分析以得到该连续影像中的可侦测得到的对象或事件信息以产生一封闭的有效分析区域，以减少实际监控该特定场景时的影像分析的负荷。