if the 2d object position and shape information 123 has already been identified and associated in the previous frame use the according information 132 again if the 2d object position and shape information 123 has not been identified in the previous step of the tracking method carry out the same steps as during the initialization frame for unidentified objects if the 2d object position and shape information 123 still is not associated with a real world object information 132 mark the frames as requiring user interaction for all frames where an non ambiguous identification of all 2d object position and shape information 123 provided by the tracking method 104 has been found mark said frame as done and not requiring further user interaction the user then manually associates the 2d object position and shape information 123 in all frames marked as requiring user interaction using the lists of possible candidates until all frames contain a non ambiguous identification of all 2d object positions and shape information 123 the object identification method 105 results in a 2d object position and shape and object identification 124 for all 2d object positions and shapes found in the tracking method 104 in all frames of all video streams the data provided by the data acquisition 102 and the object identification 105 namely the color texture data 121 and the 2d object position and shape including the object identification 124 are the input into the object cutout method 106 this method calculates a segmentation or cutout of the color texture data inside the area defined.