Final Report on 3D Modelling of Cormorant Helicopter for the 3D Data Acquisition and Modelling Services Project

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Authors
  1. Obidowski, R.M.
Corporate Authors
Defence R&D Canada - Toronto, Toronto ONT (CAN);Array Systems Computing Inc, Toronto Ont (CAN)
Abstract
This report describes the production of three graphics models of the Cormorant helicopter processed from laser scan data for both the helicopter exterior and cockpit interior. These Polygon and Non-Rational Uniform B-Spline (NURBS) surface models are scalable, and logically arranged in groups and/or layers. They also represent graphically the range of motions in the cockpit of the cyclics, collectives, pedals, and seats. An external mean accuracy of less than 1 millimetre (mm), and standard error of 4-6 mm for modelled areas of interest was verified with respect to the original data. An interior mean accuracy of less than 1 mm and standard error of 2-3 mm for modelled areas of interest was similarly verified. This accuracy is consistent and compatible with the accuracy of the laser scanners and their data.

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Keywords
3D modelling;Cormorant helicopter;CH-149 Cormorant helicopters
Report Number
DRDC-TORONTO-CR-2003-148 — Contractor Report
Date of publication
24 Oct 2003
Number of Pages
48
DSTKIM No
CA023724
CANDIS No
521110
Format(s):
Electronic Document(PDF);CD ROM

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