def addFramePair(self, images, ratio=0.75, reprojThresh=4.0, showMatches=False):
        (imageA, imageB) = images
        (kpsA, featuresA) = self.detectAndDescribe(imageA)
        (kpsB, featuresB) = self.detectAndDescribe(imageB)

        H = self.matchKeypoints(kpsA, kpsB, featuresA, featuresB, ratio, reprojThresh)
        self.accHomography *= np.asmatrix(H)

        result = cv2.warpPerspective(imageA, np.linalg.inv(self.accHomography), (1600, 900))
        return result