A Simplified Design Approach for Efficient Computation of DCT

@article{Muchahary2015ASD,
  title={A Simplified Design Approach for Efficient Computation of DCT},
  author={D. Muchahary and Abir J. Mondal and Rajesh Singh Parmar and Amlan deep Borah and A. Majumder},
  journal={2015 Fifth International Conference on Communication Systems and Network Technologies},
  year={2015},
  pages={483-487}
}
Discrete cosine transform (DCT) is the most widely used transformation technique in the field of signal processing particularly in the areas of image data. This paper addresses the design of parallel architectures for computing DCT using CORDIC. It concentrates on indirect methods, which avoids decomposition of direct DCT equation. In this paper, CORDIC methodology has been used to simplify the traditional indirect techniques for the computation of DCT. The proposed methodology is CORDIC… Expand
View on IEEE
doi.org
3 Citations
Methods Citations
3

3 Citations

Citation Type

Citation Type

An Efficient 2D Discrete Cosine Transform Processor for Multimedia Applications
TLDR
To demonstrate this, 2D DCT is implemented in associate in-memory processors and the proposed accelerator achieves the best energy efficiency for 4K HD inputs at 30 frames per second. Expand
Circular-Symmetric Correlation Layer based on FFT
TLDR
A Circular-symmetric Correlation Layer (CCL) is proposed based on the formalism of roto-translation equivariant correlation on the continuous group S × R, and implemented efficiently using the well-known Fast Fourier Transform (FFT) algorithm. Expand
Local Entropy and Standard Deviation for Facial Expressions Recognition in Thermal Imaging
TLDR
The Discrete Cosine Transform with Local Entropy (LE) and Local Standard Deviation (LSD) features are presented as an efficient filters for investigating human emotional state in thermal images. Expand

References

SHOWING 1-10 OF 15 REFERENCES
A scaled DCT architecture with the CORDIC algorithm
TLDR
This paper presents an efficient approach for computing the N-point (N=2/sup n/) scaled discrete cosine transform (DCT) with the coordinate rotation digital computer (CORDIC) algorithm based on an indirect approach so that the vector rotations are completely separated from the other operations and placed at the end of the DCT unit. Expand
A new algorithm to compute the DCT and its inverse
  • Weiping Li
  • Mathematics, Computer Science
  • IEEE Trans. Signal Process.
  • 1991
TLDR
A novel algorithm to convert the discrete cosine transform (DCT) to skew-circular convolutions is presented and it is shown that the inverse DCT (IDCT) can be computed using the same building blocks which are used for computing the DCT. Expand
Practical fast 1-D DCT algorithms with 11 multiplications
TLDR
A class of practical fast algorithms is introduced for the discrete cosine transform (DCT) and the structure of many of the published algorithms can be found in members of this class. Expand
Discrete Cosine Transform
A discrete cosine transform (DCT) is defined and an algorithm to compute it using the fast Fourier transform is developed. It is shown that the discrete cosine transform can be used in the area of… Expand
Low-power and high-quality Cordic-based Loeffler DCT for signal processing
TLDR
The proposed Cordic-based Loeffler DCT is very suitable for low-power and high-quality encoder/decoders (codecs) used in battery-based systems and retains the good transformation quality of the original Loeffer DCT. Expand
High throughput CORDIC-based systolic array design for the discrete cosine transform
TLDR
A modified Malvar algorithm that can transfer thediscrete Hartley Transform results to the Discrete Cosine Transform by using a one additional CORDIC computing stage is proposed. Expand
A CORDIC-friendly FFT architecture
TLDR
This paper introduces a restructure of the butterflies of the radix-2 FFT to be more CORDIC friendly, which achieves superior signal to quantization noise ratio (SQNR), and leads to an improvement in latency or a reduction in the total area. Expand
On the algorithms for the computation of even discrete cosine transform-2 (EDCT-2) of real sequences
An algorithm based on O/sup 2/DFT (odd-time odd-frequency discrete Fourier transform) is presented for the computation of the EDCT-2 of purely real sequences. Comparison of this algorithm with two… Expand
A Storage Efficient Way to Implement the Discrete Cosine Transform
  • Haralick
  • Computer Science
  • IEEE Transactions on Computers
  • 1976
TLDR
This correspondence shows that the amount of work can be cut to doing two single length FFT's, which is equivalent to doing one double length fast Fourier transform. Expand
On the Computation of the Discrete Cosine Transform
An N -point discrete Fourier transform (DFT) algorithm can be used to evaluate a discrete cosine transform by a simple rearrangement of the input data. This method is about two times faster compared… Expand
...
1
2
...