15 search results - page 1 / 3 » Discrete fractional Hadamard transform |
ISCAS
1999
IEEE
13 years 9 months ago
1999
IEEE
This paper is concerned with the definitions of the discrete fractional cosine transform (DFRCT) and the discrete fractional sine transform (DFRST). The definitions of DFRCT and DF...
CIT
2006
Springer
13 years 8 months ago
2006
Springer
Hash functions play the most important role in various cryptologic applications, ranging from data integrity checking to digital signatures. Our goal is to introduce a new hash fu...
ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
All of the existing N-point discrete fractional signal transforms require O(N2 ) computation complexity. In this paper, we propose a new discrete fractional signal transform whose...
ISCAS
2003
IEEE
13 years 10 months ago
2003
IEEE
In this paper, a robust and efficient digital image watermarking algorithm using the fast Hadamard transform (FHT) is proposed for the copyright protection of digital images. This...
ICMCS
2009
IEEE
13 years 2 months ago
2009
IEEE
Fractional motion estimation (FME) is widely used in video compression standards. In H.264/AVC, the precision of motion vector is down to quarter pixels to improve the coding effi...