1. An auto burst image capture method applied to a mobile device comprising a touch screen, the auto burst image capture method comprising: receiving a first user input corresponding to an object in a scene from the touch screen; determining characteristics of the object corresponding to the first user input; tracking the object in the scene according to the characteristics of the object; receiving a second user input for capturing at least an image of the scene; determining a motion state of the object according to the characteristics of the object; and capturing a number of images of the scene according to the motion state of the object.