A method for generating a presentation of a region-of-interest in an original image for display on a display screen, comprising: establishing a lens for the region-of-interest, the lens having a magnified focal region for the region-of-interest at least partially surrounded by a shoulder region having...http://www.google.com.mx/patents/US8106927?utm_source=gb-gplus-sharePatent US8106927 - Graphical user interfaces and occlusion prevention for fisheye lenses with line segment foci