00350nas a2200133   4500000000100000000000100001000000100002008004100003100001800044245011900062300001400181490000700195022001400202       2010                            d1 aDariusz Pojda00aCalculating the position of the observer in 3D using 2D images for the interactive presentation of virtual objects  a177–1860 v22  a1896-5334