1. A method for determining an eye gaze from a pair of eyes of a face in a left view image and a right view image, comprising: detecting a rectangle coarse region containing the face in one of the left view image and the right view image; detecting the face within the detected rectangle coarse region in the one of the left view image and the right view image determining a rectangle coarse region in the other of the left view image and the right view image based on the detected rectangle coarse region in the one of the left view image and the right view image and offset relationship indicating position relationship of the face in a past left view image and a past right view image; detecting the face within the determined rectangle coarse region in the other of the left view image and the right view image; and detecting the pair of eyes in the detected face in the other of the left view image and the right view image to determine the eye gaze.