266 search results - page 9 / 54 » New algorithms for computing directional discrete Fourier tr... |
ASAP
2009
IEEE
14 years 2 months ago
2009
IEEE
—The Spectral Hash algorithm is one of the Round 1 candidates for the SHA-3 family, and is based on spectral arithmetic over a finite field, involving multidimensional discrete...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
The quadratic assignment problem (QAP) is a central problem in combinatorial optimization. Several famous computationally hard tasks, such as graph matching, partitioning, and the...
ICIP
2004
IEEE
14 years 9 months ago
2004
IEEE
Using the concepts of two-dimensional Hilbert transform and analytic signal, we construct a new quaternion wavelet transform (QWT). The QWT forms a tight frame and can be efficien...
KDD
2001
ACM
14 years 8 months ago
2001
ACM
The problem of similarity search (query-by-content) has attracted much research interest. It is a difficult problem because of the inherently high dimensionality of the data. The ...
ICMCS
2006
IEEE
14 years 1 months ago
2006
IEEE
In this paper, a fast transform method is proposed to convert MPEG-2 8-tap discrete cosine transform (DCT) coefficients to H.264/AVC 4-tap integer transform coefficients directly ...