Accession Number : ADA290242

Title :   Robot Assisted Material Handling for Shirt Collar Manufacturing-Turning and Pressing-Volume 5: Three-Dimensional Machine Vision.

Descriptive Note : Final rept.,

Corporate Author : CLEMSON APPAREL RESEARCH FACILITY PENDLETON SC

Personal Author(s) : Paul, Frank W. ; Cultice, David R.

PDF Url : ADA290242

Report Date : JUN 1992

Pagination or Media Count : 168

Abstract : Apparel manufacturers are interested in applying advanced automation techniques to gain increased productivity for exiisting labor-intensive garment assembly processes. The objective of this thesis is to investigate the usefulness of three-dimensional vision sensing for fabric material manipulation. A three-dimensional (3-D) range finder composed of a charge coupled device (CCD) camera and a facility for projecting laser stripes has been developed and implemented in a robotic workstation dedicated for turning and pressing shirt collars. Through image processing and triangulation, the range finder develops position information which is used by the robot to properly position the collar on a pressing surface. The scanning and modeling of a collar takes between 16 and 18 seconds, and the complete sensing and positioning procedure requires 20 seconds with robot velocities of 20 ips. The range finder is capable of locating a 3-D point in space to within a +2 mm precision in the depth direction, and to within ji mm in the orthonormal directions. Collars are positioned on the pressing work surface with a precision of 14 mm which is within tolerance for a successful collar placement. This application of 3-D vision sensing for flexible fabric manipulation demonstrates the promising potential of 3-D vision sensing for apparel manufacturing.

Descriptors :   *ROBOTICS, *HOT PRESSING, *COMPUTER AIDED MANUFACTURING, *MATERIALS HANDLING, *COLLARS, SOFTWARE ENGINEERING, IMAGE PROCESSING, AUTOMATION, DETECTION, ROBOTS, THESES, LASERS, DEPTH, SURFACES, THREE DIMENSIONAL, REVERSIBLE, EMPLACEMENT, WORK STATIONS, SYSTEMS APPROACH, PRODUCTIVITY, VISION, RANGE FINDING, CLOTHING, SHIRTS, CHARGE COUPLED DEVICES, STRIPES.

Subject Categories : Computer Programming and Software
      Mfg & Industrial Eng & Control of Product Sys
      Logistics, Military Facilities and Supplies

Distribution Statement : APPROVED FOR PUBLIC RELEASE