한국정보통신설비학회:학술대회논문집
- 한국정보통신설비학회 2009년도 정보통신설비 학술대회
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- Pages.143-146
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- 2009
A New Method for Robust and Secure Image Hash Improved FJLT
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김형중
(고려대)
- Xiu, Anna (Korea University Multimedia Security Lab) ;
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Kim, Hyoung-Joong
(Korea University Multimedia Security Lab)
- 발행 : 2009.08.27
초록
There are some image hash methods, in the paper four image hash methods have been compared: FJLT (Fast Johnson- Lindenstrauss Transform), SVD (Singular Value Decomposition), NMF (Non-Negative Matrix Factorization), FP (Feature Point). From the compared result, FJLT method can't be used in the online. the search time is very slow because of the KNN algorithm. So FJLT method has been improved in the paper.