Cost Evaluation of Interactively Correcting Recognized Engineering Drawings

We present a new scheme, which is based on the cost of interactively correcting detection errors, for performance evaluation of engineering drawings recognition algorithms. We correct graphic objects so that they match the expected output in a graphics-editing tool using GUI, similar to that of AutoCad™. Through experiments, we define the time spent on the editing operations as the of the output element, and use it as an index for evaluating the performance of graphics recognition.