Automated 3-D modeling of shoe parts

摘要

Manufacturing of a shoe is enhanced by creating 3-D models of shoe parts. For example, a laser beam may be projected onto a shoe-part surface, such that a projected laser line appears on the shoe part. An image of the projected laser line may be analyzed to determine coordinate information, which may be converted into geometric coordinate values usable to create a 3-D model of the shoe part. Once a 3-D model is known and is converted to a coordinate system recognized by shoe-manufacturing tools, certain manufacturing steps may be automated.

主权项

1. A method for analyzing scans of a shoe part to generate dimension data, which is useable to model three-dimensional (3-D) features of the shoe part, the method comprising:
projecting a first laser beam onto a shoe-part surface of the shoe part that is comprised of a surface topography, such that a first projected laser line extends across a section of the shoe-part surface; recording a first image of the first projected laser line using both a first camera having a black-shoe-part exposure setting and a second camera having a white-shoe-part exposure setting, wherein the first image comprises a representation of the first projected laser line and comprises an extraneous depiction of light; determining coordinate points that define the representation of the first projected laser line as depicted in the first image, wherein a filtering method is applied to the coordinate points to remove one or more noisy coordinate points defining the light that is extraneously depicted; combining the coordinate points that define the representation of the first projected laser line with a first plurality of other coordinate points, which are derived from first additional images recorded when the first laser beam is projected onto other sections of the shoe-part surface, thereby compiling a first set of coordinate points that represent the surface topography; and converting the first set of coordinate points into geometric coordinate points that represent a 3-D model of the surface topography.