Depth Field Computation Using Perspective Projections on Various Geometrical Projection Planes. - Rajendran Vithiya; Yesudoss Priyadharsini; Subramanian Dharanya; Shanmugam Narmatha; Nagarethinam Parthiban; Lourdhusamy Arul Leo Felix; Narayana Rao (IPCV, 2008)