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Adaptive Surface Fitting for Inspection of FPD Devices Using Multilevel B-spline Approximation
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- Authors
- Gyu Bong Lee, Woo Seob Kim, Yun Su Chung, Joon Jae Lee, Kil Houm Park
- Issue Date
- 2005-11
- Citation
- TENCON 2005, pp.1-4
- Language
- English
- Type
- Conference Paper
- Project Code
- 05MK2300, Development of High Performance Chipset Technology for Multimodal Biometrics, Chung Kyo Il
- Abstract
- This paper proposes a surface fitting algorithm for Inspection of flat panel display(FPD) based on multilevel B-spline approximation(MBA). FPD devices have non-uniform background, and shape and intensity of defects are very various. MBA is useful algorithm for surface fitring but it is sensitive to number of control lattices. As level increases, details of original image can be reconstructed. To detect defect, defective area must not be well-reconstructed. In this paper, we propose a level decision method of MBA for FPD. After process of each level, we decide whether stop to increase level of MBA or not with simple distance measure. Experimental result shows that our proposed method makes to detect defects easy.
- KSP Keywords
- Adaptive surface, B-spline Approximation, Detect defects, Experimental Result, Fitting algorithm, Non-uniform, Surface Fitting, decision method, distance measure, flat panel display(FPD)