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Proceedings Paper

Fast three-dimensional shape recovery in TFT-LCD manufacturing
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Paper Abstract

In this paper, we propose shape recovery method for measuring protrusions on LCD Color filter in TFT-LCD manufacturing process. We use 3-D Focus Measure operator to find focused points. Then we find the lens step that maximizes the sum of the Focus Measure. In order to reduce the computational complexity, we apply the successive focus measure update algorithm. The 3-D shape of the object can be easily estimated from the best-focused points. Experiments are conducted on both synthetic and real images to evaluate performance of the proposed algorithms. The experimental results show that our new method is faster than previous method.

Paper Details

Date Published: 15 September 2008
PDF: 8 pages
Proc. SPIE 7073, Applications of Digital Image Processing XXXI, 70731U (15 September 2008); doi: 10.1117/12.798232
Show Author Affiliations
Wook-Jin Choi, Gwangju Institute of Science and Technology (Korea, Republic of)
Tae-Sun Choi, Gwangju Institute of Science and Technology (Korea, Republic of)

Published in SPIE Proceedings Vol. 7073:
Applications of Digital Image Processing XXXI
Andrew G. Tescher, Editor(s)

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