Abstract
The method evaluating the wrinkle appearance objectively with the CCD laser displacement sensor (CCD-LDS) system was described in the paper. A CCD was employed as the light-receiving element in the system, whose sensor enables to obtain the stably, highly accurate displacement measurement, regardless of the light quantity distribution of the beam spot. The wrinkle grades of standard replicas and fabrics were measured and analyzed with the system, which was an excellent tool for investigating 3-D surface shapes of wrinkles. The contours of wrinkle surfaces were also analyzed with the fractal method. Following conclusions were obtained: 1) it provided the high precision for measuring wrinkle shapes; 2) Fractal dimensions of wrinkle surfaces could quantify the wrinkle grades of replicas; 3) the system enabled to measure the multicolored, patterned, or low reflective targets.
