Parameters such as position, orientation, focal length, which image will be visible where images overlap, and the opacity curve can be...http://www.google.com/patents/US7620909?utm_source=gb-gplus-sharePatent US7620909 - Interactive image seamer for panoramic imagesAdvanced Patent SearchPublication numberUS7620909 B2Publication typeGrantApplication numberUS 10/789,508Publication dateNov 17, 2009Fi