•to solve Ax = 0:

1.compute SVD of A = U D V^t

2.if null space is 1d, x = last column of V (called null vector)

3.in general, last d columns of V span the d-dimensional null space

http://www.cis.uab.edu/jj/sfm/lecture5-conic+thedualconic+metricRectification.ppt