A portable digital image acquisition device includes multiple lenses and/or multiple flashes. A main digital image and first and second reference images are acquired. The first and second reference images are acquired with different flash-lens combinations that have different flash-lens distances. One...http://www.google.de/patents/US8081254?utm_source=gb-gplus-sharePatent US8081254 - In-camera based method of detecting defect eye with high accuracy
