Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)
- 2003.11a
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- Pages.293-296
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- 2003
Fingerprint Image Enhancement using a Modified Anisotropic Gaussian Filter
개선된 Anisotropic Gaussian 필터를 이용한 지문 영상 향상
Abstract
The enhancement of fingerprint image is necessary to improve the performance of fingerprint recognition. The enhancement of fingerprint image with Gabor Filter(GF) is widely used. However GF has the weakness such as long processing time and the sensitivity to ridge frequency. To overcome these weaknesses, we propose a Modified Anisotropic Gaussian Filter(MAGF) which is modified from Anisotropic Filter proposed by S. Greenburg's(SAF). This proposed MAGF can reduce the calculation time of ridge frequency and improve the weakness of sensitivity to ridge frequency. We also explained that MAGF is better than others mathematically and experimentally.
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