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Highly Cited

2011

Highly Cited

2011

The discrete cosine transform (DCT), introduced by Ahmed, Natarajan and Rao, has been used in many applications of digital signal…

Highly Cited

2004

Highly Cited

2004

An accurate and robust face recognition system was developed and tested. This system exploits the feature extraction capabilities…

Highly Cited

2001

Highly Cited

2001

This paper is concerned with the definitions of the discrete fractional cosine transform (DFRCT) and the discrete fractional sine…

Highly Cited

1999

Highly Cited

1999

Each discrete cosine transform (DCT) uses $N$ real basis vectors whose components are cosines. In the DCT-4, for example, the $j…

Highly Cited

1994

Highly Cited

1994

The discrete cosine transform (DCT) is a technique for converting a signal into elementary frequency components. It is widely…

Highly Cited

1992

Highly Cited

1992

Several fast algorithms for computing discrete cosine transforms (DCTs) and their inverses on multidimensional inputs of sizes…

Highly Cited

1990

Highly Cited

1990

Highly Cited

1980

Highly Cited

1980

The discrete cosine transform (DCT) of an N-point real signal is derived by taking the discrete Fourier transform (DFT) of a 2N…

Highly Cited

1977

Highly Cited

1977

A Fast Discrete Cosine Transform algorithm has been developed which provides a factor of six improvement in computational…

Highly Cited

1974

Highly Cited

1974

A discrete cosine transform (DCT) is defined and an algorithm to compute it using the fast Fourier transform is developed. It is…