Fig. 8
From: Symbol spotting for architectural drawings: state-of-the-art and new industry-driven developments
Sample visual results on GREC contest dataset, part 2. Sample visual results of the proposed symbol spotting approach on the GREC contest dataset [5], ideal case, for a correlation threshold TH = 0.875. Color legend (a) and spotted symbols on images 1 (b), 8 (c), and 19 (d). In all examples, all symbols were correctly detected, along with six (b), two (c), and three (d) false positives, shown by dashed gray arrows