AUTOMATED 3-D MEASUREMENT FOR COMPUTER AIDED MANUFACTURING IN SHIPBUILDING

The digital photogrammetric measurement system which was developed in the past years consists of an image acquisition part and an image processing part. The image acquisition is performed with a calibrated high resolution digital camera. The image processing software of the system performs the automatic detection, identification and measurement of the digital images. The reconstruction of 3-D shape from the image data is performed by Geodelta's bundle adjustment package BINAER. It includes extensive statistical testing to assess the accuracy of the results. The relative precision that can be achieved by the system is better than 10-4 in all directions. The connection for 3-D data transfer to the CAE/CAM system NUPAS is being developed. This system allows for an integrated computer-aided engineering and manufacturing of ship hull and ship construction and piping. With the connection of the non-contract digital photogrammetric measurement technique to a CAM system there are many possible applications in shipbuilding. One of them is an accurate dimensional quality control. Comparison of the as-built dimensions of the ship with the design values can be performed in a short period of time. Another application is found in the ship repair industry. All information for manufacturing the damaged part of the ship is acquired in a highly efficient way possibly even before the ship is docked.

  • Supplemental Notes:
    • ICCAS 94, 8th Intl Conf on Computer Applications in Shipbuilding; 5-9 Sept 1994; Bremen, Germany. Sponsored by Bremer Vulkan Verbund AG and Kockums Computer Systems AB. Procs. Publ by Berry Rasmusson Reklam AB, Sweden, ISBN 91- 630-2762-3. Vol 1, p 8.119 [11 p, 4 ref, 4 fig]
  • Authors:
    • Heuvel, F A
    • den, van
  • Publication Date: 1994

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00710393
  • Record Type: Publication
  • Source Agency: British Maritime Technology
  • Files: TRIS
  • Created Date: Aug 14 1995 12:00AM