TWO_VIEW performs a two-view projective reconstruction algorithm. Input: x1, x2 - image points of two views (3xn) Options: 'calibrated' - indicates the camera is calibrated 'K', K - calibration matrix (3x3) Output: X - 3d (projective) location of poitns (4xn) lambda - depths of the points (1xn) R - camera rotation (3x3) T - camera translation (3x1) F - fundamental matrix (or essential) (3x3) error - reprojection error