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Discrete cosine transform

Known as: ICT, Inverse cosine transform, Fast cosine transform 
A discrete cosine transform (DCT) expresses a finite sequence of data points in terms of a sum of cosine functions oscillating at different… 
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Related topics

Related topics

49 relations
Comparison of video codecsCooley–Tukey FFT algorithmData compressionDeblocking filter

Papers overview

Semantic Scholar uses AI to extract papers important to this topic.
2008
2008
Image Compression Using Discrete Cosine Transform
Image compression is the application of data compression on digital images. Image compression can be lossy or lossless. In this… 
2007
2007
Fingerprint Enhancement Based on Discrete Cosine Transform
This paper proposes a novel fingerprint enhancement algorithm based on contextual filtering in DCT domain. All intrinsic… 
2005
2005
A new multicarrier transceiver based on the discrete cosine transform
We derive conditions on the impulse response and input signal of a frequency-selective FIR channel to be diagonalized by the DCT… 
2000
2000
Constant geometry algorithm for discrete cosine transform
Modification to the architecture-oriented fast algorithm for discrete cosine transform of type II from Astola and Akopian (see… 
2000
2000
A Serial-Parallel Architecture for Two-Dimensional Discrete Cosine and Inverse Discrete Cosine Transforms
The Discrete Cosine and Inverse Discrete Cosine Transforms are widely used tools in many digital signal and image processing… 
1998
1998
Reversible discrete cosine transform
  • K. KomatsuK. Sezaki
  • Proceedings of the IEEE International Conference…
  • 1998
  • Corpus ID: 17045923
In this paper a reversible discrete cosine transform (RDCT) is presented. The N-point reversible transform is firstly presented… 
Highly Cited
1991
Highly Cited
1991
A unified systolic array for discrete cosine and sine transforms
A linear systolic array for the discrete cosine transform, discrete sine transform, and their inverses is developed. It generates… 
Highly Cited
1990
Highly Cited
1990
Discrete cosine transform filtering
Circular convolution-multiplication relationships for the discrete cosine transform (DCT) that are similar to those for the… 
Highly Cited
1987
Highly Cited
1987
Fast computation of the discrete cosine transform and the discrete Hartley transform
A new factorization of the discrete Hartley transform (DHT) is presented. It is used to derive new algorithms for the DHT and the… 
1975
1975
Comments on "Discrete Cosine Transform"
In the above correspondence,1 Ahmed et al. proposed a discrete cosine transform (DCT) and compared its performance with the… 
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