A method of determining symmetry in an image, a method of determining a symmetry plane line segment of a 3D image, a method of determining a symmetry line of a 2D image, and a computer program product. The method includes a) determining at least one searching line segment within a predefined search area...http://www.google.com.au/patents/US7409085?utm_source=gb-gplus-sharePatent US7409085 - Method and apparatus for determining symmetry in 2d and 3d images
