Search Results - "Coelho, D. F. G."

Fast data-independent KLT approximations based on integer functions by Radunz, A. P., Coelho, D. F. G., Bayer, F. M., Cintra, R. J., Madanayake, A.

“…The Karhunen-Loève transform (KLT) stands as a well-established discrete transform, demonstrating optimal characteristics in data decorrelation and…”
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Efficient Computation of the 8-point DCT via Summation by Parts by Coelho, D. F. G., Cintra, R. J., Dimitrov, V. S.

“…This paper introduces a new fast algorithm for the 8-point discrete cosine transform (DCT) based on the summation-by-parts formula. The proposed method…”
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Low-complexity Scaling Methods for DCT-II Approximations by Coelho, D. F. G, Cintra, R. J, Madanayake, A, Perera, S

“…This paper introduces a collection of scaling methods for generating $2N$-point DCT-II approximations based on $N$-point low-complexity transformations. Such…”
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Fast Data-independent KLT Approximations Based on Integer Functions by Radünz, A. P, Coelho, D. F. G, Bayer, F. M, Cintra, R. J, Madanayake, A

“…Multimedia Tools and Applications, 83(26):67303--67325, January 2024 The Karhunen-Lo\`eve transform (KLT) stands as a well-established discrete transform,…”
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A Class of Low-complexity DCT-like Transforms for Image and Video Coding by da Silveira, T. L. T, Canterle, D. R, Coelho, D. F. G, Coutinho, V. A, Bayer, F. M, Cintra, R. J

“…IEEE Transactions on Circuits and Systems for Video Technology, v. 32, n. 7, July 2022 The discrete cosine transform (DCT) is a relevant tool in signal…”
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Low-Complexity Loeffler DCT Approximations for Image and Video Coding by Coelho, D. F. G, Cintra, R. J, Bayer, F. M, Kulasekera, S, Madanayake, A, Martinez, P. A. C, Silveira, T. L. T, Oliveira, R. S, Dimitrov, V. S

“…J. Low Power Electron. Appl. 2018, 8(4), 46 This paper introduced a matrix parametrization method based on the Loeffler discrete cosine transform (DCT)…”
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Low-complexity Architecture for AR(1) Inference by BorgesJr, A, Cintra, R. J, Coelho, D. F. G, Dimitrov, V. S

“…Electronics Letters 56 (14), 732-734, 2020 In this Letter, we propose a low-complexity estimator for the correlation coefficient based on the signed…”
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Efficient Computation of the 8-point DCT via Summation by Parts by Coelho, D. F. G, Cintra, R. J, Dimitrov, V. S

“…J Sign Process Syst (2017) This paper introduces a new fast algorithm for the 8-point discrete cosine transform (DCT) based on the summation-by-parts formula…”
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Fast Matrix Inversion and Determinant Computation for Polarimetric Synthetic Aperture Radar by Coelho, D. F. G, Cintra, R. J, Frery, A. C, Dimitrov, V. S

“…Computers and Geosciences, no. 119 (2018), pages 109-114 This paper introduces a fast algorithm for simultaneous inversion and determinant computation of small…”
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Fast matrix inversion and determinant computation for Polarimetric Synthetic Aperture Radar by Coelho, D.F.G., Cintra, R.J., Frery, A.C., Dimitrov, V.S.

“…This paper introduces a fast algorithm for simultaneous inversion and determinant computation of small sized matrices in the context of fully Polarimetric…”
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An 8-Beam 2.4 GHz Digital Array Receiver Based on a Fast Multiplierless Spatial DFT Approximation by Coutinho, V. A., Ariyarathna, V., Coelho, D. F. G., Cintral, R. J., Madanayake, A.

“…A low-complexity receive-mode 8-beam multi-beamformer in the digital domain has been realized at 2.4 GHz using an 8-element IQ receiver array. The proposed…”
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Discrete Fourier Transform Approximations Based on the Cooley-Tukey Radix-2 Algorithm by Coelho, D. F. G, Cintra, R. J

“…This report elaborates on approximations for the discrete Fourier transform by means of replacing the exact Cooley-Tukey algorithm twiddle-factors by…”
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