Video time stamp obtaining method, video processing equipment, and video system

The invention provides a video time stamp obtaining method, a video processing equipment, and a video system. The method is characterized in that the method comprises the steps: recording a current local time t when the i-th data frame transmitted by video collection equipment is received, wherein i is a positive integer, and the initial value of i is 1; obtaining a standard value n' of an n -th frame according to the collection period T of the video collection equipment, wherein n is an integer, the absolute value of t -d' -n *T is minimum when n is equal to n' , and d' is initialized as 0 in advance when i is equal to 1; and calculating a video time stamp t' of the i-th data frame, wherein t' is equal to n' *T. The method, equipment and system can achieve the dividing of the same data frame, enable a plurality of obtained video time stamps to be synchronous, and improve the image quality.