Abstract: A system and method for the three-dimensional analysis and reconstruction of the surface of a thin flexible material has a sample holder for supporting the flexible material over a curvature and a camera for capturing profile images of the surface at the curvature. The images are transferred to a computer which is programmed to extract profile height information from the images and produce three-dimensional data representing the surface of the flexible material. The profile height information is extracted by applying a histogram analysis to the images, applying a threshold, and extracting height information.

Abstract: A method of three dimensional measurement, evaluation, and grading system for fabric/textile structure/garment appearance, based an values P and Q, is carried out using a fixed digital camera positioned above a piece of the fabric, shining at least two different parallel light beams from inclined directions onto the surface of the fabric and capturing different reflected images of the surface with the camera. The captured images are analysed to derive certain parameters relevant to the appearance. In particular, values of P+Q may be used in a grading evaluation, where P and Q are summations of the surface gradients for a plurality of evenly distributed points in an x direction and in a y direction of the surface, respectively.

Abstract: A system for analyzing fabric surface appearance includes a feed mechanism for running a fabric over a crest including a frame for holding the fabric bent to form a crest, an image capturing device for capturing profile images of the fabric surface at the crest, and a computer system for manipulating the images. The computer system produces a three-dimensional representation of the fabric surface and identifies characteristics in the three-dimensional representation. The information is compared to reference data to identify a grade for the fabric.

Abstract: A system for analysing fabric surface appearance includes a feed mechanism for running a fabric over a crest including, a frame for holding the fabric bent to form a crest, an image capturing device to capture profile images of the fabric surface at the crest, and a computer system for manipulate the images. The computer system produces a three-dimensional representation of the fabric surface and identifies prominent characteristics in the three-dimensional representation. The information is compared to reference data to identify a grade for the fabric.

Abstract: A method of 3D measurement, evaluation and grading system for fabric/textile structure/garment appearance, based on values P and Q, is carried out using a fixed digital camera positioned above a piece of the fabric, shining at least two different parallel light beams from inclined directions on to the surface and capturing different reflected images of the surface with the camera. The captured images are analysed to derive certain parameters relevent to the appearance. In particular, values of P+Q may be used in a grading evaluation, where P and Q are summations of the surface gradients for a plurality of evenly distributed points in an x direction and in a y direction of the surface respectively.