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Wound scanning and Path planning sequence for the point cloud according to the defect. (A) The skin defect was scanned using a binocular optical 3D scanner. (B) the point cloud of the bottom surface of the skin defect site obtained with existing programs. (C) A single-layer point cloud was projected on a 2D plane and the contour point was marked by asterisks. (D) A 2D printing path was generated. (E–F) Two layers of 3D printing paths were generated. Scale bar units: mm (B–F).
