![]() ![]() ![]() If so, that part of the contour is considered an outer lock and the adjacent convexity defect points are discarded.Īs the puzzles are still rotated randomly we need to consider any possible orientation they may take in the assembled mosaics. If this part of the contour resembles a circle, its circularity rate must be close to 0.08: For this purpose, we calculate the circularity rate for each of the contour parts, that is the area of the part divided by its perimeter squared. Thus, the next step of the algorithm is to check whether the contour between the two consecutive defect points resembles a circle. Now it is obvious that each inner lock is described by one convexity defect and each outer lock – by two. If the distance from the convex hull to the defect is insubstantial, that is smaller than the error margin – epsilon, that point is not considered to be a defect. First, the program calculates the convex closure of the puzzle (blue line in Figure 3) and computes its convexity defects – the deepest points on the contour (red dots in Figure 3). In order to align them, our computer vision algorithm needs to locate the interlocking parts of puzzles – inner and outer locks. While the puzzles were split apart and cropped out in the previous module they are still chaotically rotated. Kitchen Furniture & Appliances Recognition.Automatic Fruit Counting for Conveyor Systems.SimpleContacts Applicant Tracking Software.
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