Including interaction in an automated modelling system

An approach for including interaction in an automatic building detection and description system is described. It uses intermediate results and computations of the automatic analysis to add or correct the 3-D description of a scene. The proposed method requires a minimum amount of easily obtainable information from the user. The number of interaction steps is less or equal to those of computer assisted manual systems with a final fitting step. The system is built on top of a monocular automatic building system developed at USC and has been tested on a number of examples with good results.

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