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Article Information:
Title:
Instrumental design for capturing three-dimensional moire images
Author(s):
W.M. Yu, S.C. Harlock, G.A.V. Leaf, K.W. Yeung
Journal:
International Journal of Clothing Science and Technology
Year:
1997
Volume:
Issue:
Page:
301 - 310
ISSN:
0955-6222
DOI:
10.1108/09556229710177009
Publisher:
MCB UP Ltd
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Abstract:
Describes the setting up of a moire topographic system to measure three-dimensional convex and concave surfaces of moulded brassiere cups. The essential features of the system consisted of a photographic instrument which precisely controlled the position of the light source, the camera, the grid and the cup sample. As the uniformity of the grid was most crucial to produce a high contrast moire picture, a photochemical-machined grid plate was developed, and a pneumatic grid translation device was incorporated into the system to produce a clear image. The tolerance of the instrumental error was derived by the law of error propagation and the confidence with the moire set-up was assured.
Keywords:
Article Type:
Technical paper