Patent ID: 8363106
Filing Date: 2013-01-29
Classification: G08B

Abstract:
1. A video surveillance method, comprising: under control of a video camera module, analyzing the subject image includes dividing the subject image into image zones; and the occurrence of a variation in the subject image compared to the previously captured image is detected if a condition is confirmed in at least one image zone of the subject image, the condition being: in which MR(t,i) is the average value of pixels of the image zone i in the subject image t, MRF(t−1,i) is an average value of pixels of the image zone i calculated on several previous images from a previous image t−1, G(i) is a detection threshold value defined for the image zone i and VRF(t−1,i) is an average variance value calculated on several previous images from the previous image t−1.