Objective Evaluation of Garment Seams Using 3D Laser Scanning Technology

This paper reports on the development of an objective method for evaluating the degree of puckering in garment seams. With this method, a garment is put on a dummy and a seam is scanned by a 3D laser scanning system. The geometric surface of the scanned seam is then processed with a 2D digital filter to obtain a pucker profile by removing the "high frequency" components due to the fabric surface texture and the "low frequency" components due to three-dimensional garment surface contours. From the pucker profile, we can derive a physical parameter, log (σ ² ), which is linearly related to the subjective pucker grade. From the objectively measured log (σ ² ), we can objectively evaluate the pucker grade of the garment seam.