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논문 기본 정보

자료유형
학술대회자료
저자정보
Woochan Seo (중앙대학교) Minsue Park (중앙대학교) Jinguk Kwon (중앙대학교) Hoon Kang (중앙대학교)
저널정보
대한전자공학회 ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications ITC-CSCC : 2008
발행연도
2008.7
수록면
1,617 - 1,620 (4page)

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초록· 키워드

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In this paper, we propose a new way of improving the operation speed of Gabor filters. If the mask is applied to some images, a number of mathmatical operations increase due to complexity. If the mask size is reduced as small as possible in an allowable range, the operation time may decrease. But it would make a problem because the small mask is difficult to represent both frequency and orientation characteristics. Therefore, the operation speed is overcome by substituting multiplications for additions, instead of changing the mask size. First, Haar wavelets are generated in terms of binary data. We divide the mask into two groups, 1’s and -1’s. Thus, Haar wavelets show both frequency and orientation characteristics. Then, by applying ‘Matching Pursuit’, we obtain the correlations between the original Gabor filters and our binary Haar wavelets. The Gabor filter can be described by linear combinations of Haar wavelets. As a result, the binary wavelets give a benefit to the operation speed. However, some trade-off is necessary between accuracy and speed since it may cause some errors.

목차

Abstract
1. Introduction
2. Gabor Filter
3. Matching Pursuit
4. Haar Wavelet
5. Experiment
6. Conclusion
References

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