TRIANGULATION computes a 3D location of a point from more than two views. Input: K - parameters of calibration matrices (4xm) T - camera translations (3xm) Omega - camera rotations in exponential map (3xm) x - image points in homogeneous representation (3xm) Output: X - triangulated 3d location in homogeneous representatin (4x1) , returns X(4) = 0 if any view has negative depth