Renato J. Cintra

ORCID

Publication Activity (10 Years)

Years Active: 2002-2024
Publications (10 Years): 115

Top Venues

CoRR

IEEE Trans. Geosci. Remote. Sens.

Signal Process.

IEEE Trans. Computers

Publications

Diego F. G. Coelho, Renato J. Cintra
Discrete Fourier Transform Approximations Based on the Cooley-Tukey Radix-2 Algorithm. CoRR (2024)
Renato J. Cintra
An Approximation for the 32-point Discrete Fourier Transform. CoRR (2024)
Anabeth P. Radünz, Diego F. G. Coelho, Fábio M. Bayer, Renato J. Cintra, Arjuna Madanayake
Fast data-independent KLT approximations based on integer functions. Multim. Tools Appl. 83 (26) (2024)
Fábio M. Bayer, Alice J. Kozakevicius, Renato J. Cintra
An Iterative Wavelet Threshold for Signal Denoising. CoRR (2023)
Anabeth P. Radünz, Luan Portella, Raíza S. Oliveira, Fábio M. Bayer, Renato J. Cintra
Extensions on Low-Complexity DCT Approximations for Larger Blocklengths Based on Minimal Angle Similarity. J. Signal Process. Syst. 95 (4) (2023)
Haixiang Zhao, Arjuna Madanayake, Renato J. Cintra, Soumyajit Mandal
Analog Current-Mode 8-Point Approximate-DFT Multi-Beamformer With 4.7 Gbps Channel Capacity. IEEE Access 11 (2023)
Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra
Prediction intervals in the beta autoregressive moving average model. Commun. Stat. Simul. Comput. 52 (8) (2023)
Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer
Low-complexity Multidimensional DCT Approximations. CoRR (2023)
Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra
Improved Point Estimation for the Rayleigh Regression Model. CoRR (2022)
Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra
2-D Rayleigh autoregressive moving average model for SAR image modeling. Comput. Stat. Data Anal. 171 (2022)
C. J. Tablada, Thiago L. T. da Silveira, Renato J. Cintra, Fábio M. Bayer
DCT Approximations Based on Chen's Factorization. CoRR (2022)
Bruna Gregory Palm, Dimas I. Alves, V. T. Vu, Mats I. Pettersson, Fábio M. Bayer, Renato J. Cintra, Renato B. Machado, Patrik B. G. Dammert, Hans Hellsten
Autoregressive Model for Multi-Pass SAR Change Detection Based on Image Stacks. CoRR (2022)
Luan Portella, Diego F. G. Coelho, Fábio M. Bayer, Arjuna Madanayake, Renato J. Cintra
Radix-$N$ Algorithm for Computing $N^{2^{n}}$-Point DFT Approximations. IEEE Signal Process. Lett. 29 (2022)
Diego F. G. Coelho, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake, P. A. C. Martinez, Thiago L. T. da Silveira, R. S. Oliveira, Vassil S. Dimitrov
Low-Complexity Loeffler DCT Approximations for Image and Video Coding. CoRR (2022)
Gauss M. Cordeiro, Renato J. Cintra, Leandro Chaves Rêgo, Abraao D. C. Nascimento
The Gamma Generalized Normal Distribution: A Descriptor of SAR Imagery. CoRR (2022)
Bruna Gregory Palm, Fábio M. Bayer, Renato B. Machado, Mats I. Pettersson, Viet Thuy Vu, Renato J. Cintra
Robust Rayleigh Regression Method for SAR Image Processing in Presence of Outliers. IEEE Trans. Geosci. Remote. Sens. 60 (2022)
Sirani M. Perera, Arjuna Madanayake, Renato J. Cintra
Radix-2 Self-Recursive Sparse Factorizations of Delay Vandermonde Matrices for Wideband Multi-Beam Antenna Arrays. CoRR (2022)
Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra
Improved Point Estimation for the Rayleigh Regression Model. IEEE Geosci. Remote. Sens. Lett. 19 (2022)
Renato J. Cintra, Stefan Duffner, C. Garcia, A. Leite
Low-complexity Approximate Convolutional Neural Networks. CoRR (2022)
Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Leonard T. Bruton
Block-Parallel Systolic-Array Architecture for 2-D NTT-based Fragile Watermark Embedding. CoRR (2022)
Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra
Prediction Intervals in the Beta Autoregressive Moving Average Model. CoRR (2022)
Thiago L. T. da Silveira, Diego Ramos Canterle, Diego F. G. Coelho, Vítor de A. Coutinho, Fábio M. Bayer, Renato J. Cintra
A Class of Low-Complexity DCT-Like Transforms for Image and Video Coding. IEEE Trans. Circuits Syst. Video Technol. 32 (7) (2022)
Anabeth P. Radünz, Thiago L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra
Data-independent low-complexity KLT approximations for image and video coding. Signal Process. Image Commun. 101 (2022)
Vítor de A. Coutinho, Fábio M. Bayer, Renato J. Cintra
Low-complexity Three-dimensional Discrete Hartley Transform Approximations for Medical Image Compression. CoRR (2022)
Arjuna Madanayake, Renato J. Cintra, Najath Akram, Viduneth Ariyarathna, Soumyajit Mandal, Vítor A. Coutinho, Fábio M. Bayer, Diego F. G. Coelho, Theodore S. Rappaport
Fast Radix-32 Approximate DFTs for 1024-Beam Digital RF Beamforming. CoRR (2022)
Anabeth P. Radünz, Fábio M. Bayer, Renato J. Cintra
Low-complexity rounded KLT approximation for image compression. J. Real Time Image Process. 19 (1) (2022)
Sirani M. Perera, Arjuna Madanayake, Renato J. Cintra
Efficient and Self-Recursive Delay Vandermonde Algorithm for Multi-Beam Antenna Arrays. CoRR (2022)
Thiago L. T. da Silveira, Diego Ramos Canterle, Diego F. G. Coelho, Vítor de A. Coutinho, Fábio M. Bayer, Renato J. Cintra
A Class of Low-complexity DCT-like Transforms for Image and Video Coding. CoRR (2022)
Arjuna Madanayake, Viduneth Ariyarathna, Suresh Madishetty, Sravan Kumar Pulipati, Renato J. Cintra, Diego Coelho, Raíza Oliveira, Fábio M. Bayer, Leonid Belostotski, Soumyajit Mandal, Theodore S. Rappaport
Towards a Low-SWaP 1024-beam Digital Array: A 32-beam Sub-system at 5.8 GHz. CoRR (2022)
Bruna Gregory Palm, Fábio Mariano Bayer, R. Machado, Mats I. Pettersson, V. T. Vu, Renato J. Cintra
Robust Rayleigh Regression Method for SAR Image Processing in Presence of Outliers. CoRR (2022)
Anabeth P. Radünz, T. L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra
Data-independent Low-complexity KLT Approximations for Image and Video Coding. CoRR (2021)
Anabeth P. Radünz, Fábio M. Bayer, Renato J. Cintra
Low-complexity Rounded KLT Approximation for Image Compression. CoRR (2021)
Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra
Signal detection and inference based on the beta binomial autoregressive moving average model. Digit. Signal Process. 109 (2021)
Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer
Low-complexity three-dimensional discrete Hartley transform approximations for medical image compression. Comput. Biol. Medicine 139 (2021)
Hélio M. de Oliveira, Renato J. Cintra
Geometrical Representation for Number-theoretic Transforms. CoRR (2021)
Diego F. G. Coelho, Renato J. Cintra, Arjuna Madanayake, Sirani M. Perera
Low-complexity Scaling Methods for DCT-II Approximations. CoRR (2021)
Diego F. G. Coelho, Renato J. Cintra, Arjuna Madanayake, Sirani M. Perera
Low-Complexity Scaling Methodsfor DCT-II Approximations. IEEE Trans. Signal Process. 69 (2021)
Josimar M. Vasconcelos, Renato J. Cintra, Abraão David Costa do Nascimento, Leandro Chaves Rêgo
The compound truncated Poisson Cauchy model: A descriptor for multimodal data. J. Comput. Appl. Math. 378 (2020)
Arjuna Madanayake, Renato J. Cintra, Najath Akram, Viduneth Ariyarathna, Soumyajit Mandal, Vítor de A. Coutinho, Fábio M. Bayer, Diego F. G. Coelho, Theodore S. Rappaport
Fast Radix-32 Approximate DFTs for 1024-Beam Digital RF Beamforming. IEEE Access 8 (2020)
Hélio M. de Oliveira, Victor Vermehren Valenzuela, Renato J. Cintra
Multi-dimensional wavelets for scalable image decomposition: Orbital wavelets. Int. J. Wavelets Multiresolution Inf. Process. 18 (5) (2020)
Hélio M. de Oliveira, Victor Vermehren Valenzuela, Renato J. Cintra
Multidimensional Wavelets for Scalable Image Decomposition: Orbital Wavelets. CoRR (2020)
Bruna Gregory Palm, Dimas I. Alves, Mats I. Pettersson, Viet Thuy Vu, Renato B. Machado, Renato J. Cintra, Fábio M. Bayer, Patrik B. G. Dammert, Hans Hellsten
Wavelength-Resolution SAR Ground Scene Prediction Based on Image Stack. Sensors 20 (7) (2020)
A. Borges Jr., Renato J. Cintra, Diego F. G. Coelho, Vassil S. Dimitrov
Low-complexity Architecture for AR(1) Inference. CoRR (2020)
Renato J. Cintra, Hélio M. de Oliveira, C. O. Cintra
Rounded Hartley Transform: A Quasi-involution. CoRR (2020)
Diego Ramos Canterle, Thiago L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra
A Multiparametric Class of Low-complexity Transforms for Image and Video Coding. CoRR (2020)
Diego Ramos Canterle, Thiago L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra
A Multiparametric Class of Low-complexity Transforms for Image and Video Coding. Signal Process. 176 (2020)
Namalka Liyanage, Chamith Wijenayake, Chamira U. S. Edussooriya, Arjuna Madanayake, Renato J. Cintra, Eliathamby Ambikairajah
Low-Complexity Real-Time Light Field Compression using 4-D Approximate DCT. ISCAS (2020)
Sirani M. Perera, Arjuna Madanayake, Renato J. Cintra
Radix-2 Self-Recursive Sparse Factorizations of Delay Vandermonde Matrices for Wideband Multi-Beam Antenna Arrays. IEEE Access 8 (2020)
Renato J. Cintra
An Integer Approximation Method for Discrete Sinusoidal Transforms. CoRR (2020)
Vítor de A. Coutinho, Viduneth Ariyarathna, Diego F. G. Coelho, Sravan Kumar Pulipati, Renato J. Cintra, Arjuna Madanayake, Fábio M. Bayer, Vassil S. Dimitrov
A Low-SWaP 16-Beam 2.4 GHz Digital Phased Array Receiver Using DFT Approximation. IEEE Trans. Aerosp. Electron. Syst. 56 (5) (2020)
Raíza S. Oliveira, Renato J. Cintra, Fábio M. Bayer, Thiago L. T. da Silveira, Arjuna Madanayake, André Leite
Low-complexity 8-point DCT approximation based on angle similarity for image and video coding. Multidimens. Syst. Signal Process. 30 (3) (2019)
Gauss M. Cordeiro, Renato J. Cintra, Leandro Chaves Rêgo, Abraão David Costa do Nascimento
The gamma generalized normal distribution: A descriptor of SAR imagery. J. Comput. Appl. Math. 347 (2019)
Fábio M. Bayer, Alice J. Kozakevicius, Renato J. Cintra
An iterative wavelet threshold for signal denoising. Signal Process. 162 (2019)
Abraao D. C. Nascimento, Alejandro C. Frery, Renato J. Cintra
Detecting Changes in Fully Polarimetric SAR Imagery With Statistical Information Theory. IEEE Trans. Geosci. Remote. Sens. 57 (3) (2019)
Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra, Mats I. Pettersson, Renato B. Machado
Rayleigh Regression Model for Ground Type Detection in SAR Imagery. IEEE Geosci. Remote. Sens. Lett. 16 (10) (2019)
Diego F. G. Coelho, Sushmabhargavi Nimmalapalli, Vassil S. Dimitrov, Arjuna Madanayake, Renato J. Cintra, Arnaud Tisserand
Computation of 2D 8×8 DCT Based on the Loeffler Factorization Using Algebraic Integer Encoding. IEEE Trans. Computers 67 (12) (2018)
Diego F. G. Coelho, Renato J. Cintra, Vassil S. Dimitrov
Efficient Computation of the 8-point DCT via Summation by Parts. CoRR (2018)
Abraão David Costa do Nascimento, Alejandro C. Frery, Renato J. Cintra
Detecting Changes in Fully Polarimetric SAR Imagery with Statistical Information Theory. CoRR (2018)
Jithra Adikari, Vassil S. Dimitrov, Renato J. Cintra
A New Algorithm for Double Scalar Multiplication over Koblitz Curves. CoRR (2018)
Viduneth Ariyarathna, Arjuna Madanayake, Xinyao Tang, Diego F. G. Coelho, Renato J. Cintra, Leonid Belostotski, Soumyajit Mandal, Theodore S. Rappaport
Analog Approximate-FFT 8/16-Beam Algorithms, Architectures and CMOS Circuits for 5G Beamforming MIMO Transceivers. IEEE J. Emerg. Sel. Topics Circuits Syst. 8 (3) (2018)
Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer, Paulo A. M. Oliveira, Raíza S. Oliveira, Arjuna Madanayake
Pruned Discrete Tchebichef Transform Approximation for Image Compression. Circuits Syst. Signal Process. 37 (10) (2018)
Raíza S. Oliveira, Renato J. Cintra, Fábio M. Bayer, Thiago L. T. da Silveira, Arjuna Madanayake, André Leite
Low-complexity 8-point DCT Approximation Based on Angle Similarity for Image and Video Coding. CoRR (2018)
Diego F. G. Coelho, Renato J. Cintra, Vassil S. Dimitrov
Efficient Computation of the 8-point DCT via Summation by Parts. J. Signal Process. Syst. 90 (4) (2018)
Renato J. Cintra, Stefan Duffner, Christophe Garcia, André Leite
Low-Complexity Approximate Convolutional Neural Networks. IEEE Trans. Neural Networks Learn. Syst. 29 (12) (2018)
Haixiang Zhao, Soumyajit Mandal, Viduneth Ariyarathna, Arjuna Madanayake, Renato J. Cintra
An Offset-Canceling Approximate-DFT Beamforming Architecture for Wireless Transceivers. ISCAS (2018)
Diego F. G. Coelho, Renato J. Cintra, Alejandro C. Frery, Vassil S. Dimitrov
Fast Matrix Inversion and Determinant Computation for Polarimetric Synthetic Aperture Radar. CoRR (2018)
Diego F. G. Coelho, Renato J. Cintra, Alejandro César Frery, Vassil S. Dimitrov
Fast matrix inversion and determinant computation for Polarimetric Synthetic Aperture Radar. Comput. Geosci. 119 (2018)
Sirani M. Perera, Viduneth Ariyarathna, Nilan Udayanga, Arjuna Madanayake, Ge Wu, Leonid Belostotski, Yingying Wang, Soumyajit Mandal, Renato J. Cintra, Theodore S. Rappaport
Wideband N-Beam Arrays Using Low-Complexity Algorithms and Mixed-Signal Integrated Circuits. IEEE J. Sel. Top. Signal Process. 12 (2) (2018)
Arjuna Madanayake, Viduneth Ariyarathna, Nilan Udayanga, Leonid Belostotski, Sirani M. Perera, Renato J. Cintra
Design of a low-complexity wideband analog true-time-delay 5-beam array in 65nm CMOS. MWSCAS (2017)
Renato J. Cintra, Fábio M. Bayer
Comments on 'Area and power efficient DCT architecture for image compression' by Dhandapani and Ramachandran. EURASIP J. Adv. Signal Process. 2017 (2017)
Vassil S. Dimitrov, Viduneth Ariyarathna, Diego F. G. Coelho, Logan Rakai, Arjuna Madanayake, Renato J. Cintra
A Parallel Method for the Computation of Matrix Exponential Based on Truncated Neumann Series. ARITH (2017)
Renato J. Cintra, Fábio M. Bayer, Arjuna Madanayake, Uma Sadhvi Potluri, Amila Edirisuriya
Fast Algorithms and Architectures for 8-Point DST-II/DST-VII Approximations. J. Circuits Syst. Comput. 26 (3) (2017)
Paulo A. M. Oliveira, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake
Low-Complexity Image and Video Coding Based on an Approximate Discrete Tchebichef Transform. IEEE Trans. Circuits Syst. Video Technol. 27 (5) (2017)
Amila Edirisuriya, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov
A Single-Channel Architecture for Algebraic Integer Based 8×8 2-D DCT Computation. CoRR (2017)
Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer
Low-Complexity Multidimensional DCT Approximations for High-Order Tensor Data Decorrelation. IEEE Trans. Image Process. 26 (5) (2017)
Fábio M. Bayer, Renato J. Cintra
DCT-like Transform for Image Compression Requires 14 Additions Only. CoRR (2017)
Thiago Lopes Trugillo da Silveira, Raíza S. Oliveira, Fábio M. Bayer, Renato J. Cintra, Arjuna Madanayake
Multiplierless 16-point DCT approximation for low-complexity image and video coding. Signal Image Video Process. 11 (2) (2017)
Nilanka T. Rajapaksha, Arjuna Madanayake, Renato J. Cintra, Jithra Adikari, Vassil S. Dimitrov
VLSI Computational Architectures for the Arithmetic Cosine Transform. CoRR (2017)
Diego F. G. Coelho, Renato J. Cintra, Nilanka T. Rajapaksha, Gihan J. Mendis, Arjuna Madanayake, Vassil S. Dimitrov
DFT Computation Using Gauss-Eisenstein Basis: FFT Algorithms and VLSI Architectures. IEEE Trans. Computers 66 (8) (2017)
Ricardo M. Campello de Souza, Hélio M. de Oliveira, Renato J. Cintra
Multiuser Communication Based on the DFT Eigenstructure. CoRR (2017)
C. J. Tablada, Thiago Lopes Trugillo da Silveira, Renato J. Cintra, Fábio M. Bayer
DCT approximations based on Chen's factorization. Signal Process. Image Commun. 58 (2017)
Fábio M. Bayer, Renato J. Cintra, Amila Edirisuriya, Arjuna Madanayake
A Digital Hardware Fast Algorithm and FPGA-based Prototype for a Novel 16-point Approximate DCT for Image Compression Applications. CoRR (2017)
Thiago Lopes Trugillo da Silveira, Raíza S. Oliveira, Fábio M. Bayer, Renato J. Cintra, Arjuna Madanayake
Multiplierless 16-point DCT Approximation for Low-complexity Image and Video Coding. CoRR (2016)
Diego F. G. Coelho, Renato J. Cintra, Sunera Kulasekera, Arjuna Madanayake, Vassil S. Dimitrov
Error-free computation of 8-point discrete cosine transform based on the Loeffler factorisation and algebraic integers. IET Signal Process. 10 (6) (2016)
Thiago L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra, Sunera Kulasekera, Arjuna Madanayake, Alice J. Kozakevicius
An orthogonal 16-point approximate DCT for image and video compression. Multidimens. Syst. Signal Process. 27 (1) (2016)
Paulo A. M. Oliveira, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake
Low-complexity Image and Video Coding Based on an Approximate Discrete Tchebichef Transform. CoRR (2016)
Renato J. Cintra, Fábio M. Bayer, Vítor de A. Coutinho, Sunera Kulasekera, Arjuna Madanayake
Energy-efficient 8-point DCT Approximations: Theory and Hardware Architectures. CoRR (2016)
Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake
Low-complexity Pruned 8-point DCT Approximations for Image Encoding. CoRR (2016)
Thiago Lopes Trugillo da Silveira, Fábio M. Bayer, Renato J. Cintra, Sunera Kulasekera, Arjuna Madanayake, Alice J. Kozakevicius
An Orthogonal 16-point Approximate DCT for Image and Video Compression. CoRR (2016)
Renato J. Cintra, Todor V. Cooklev
Robust Image Watermarking Using Non-Regular Wavelets. CoRR (2016)
Hélio M. de Oliveira, Renato J. Cintra
A New Information Theoretical Concept: Information-Weighted Heavy-tailed Distributions. CoRR (2016)
Todor Cooklev, Hakan Dogan, Renato J. Cintra, Hakan Yildiz
A Generalized Prefix Construction for OFDM Systems Over Quasi-Static Channels. CoRR (2016)
Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake
A multiplierless pruned DCT-like transformation for image and video compression that requires ten additions only. J. Real Time Image Process. 12 (2) (2016)
Renato J. Cintra, Fábio M. Bayer, Vítor de A. Coutinho, Sunera Kulasekera, Arjuna Madanayake, André Leite
Energy-Efficient 8-Point DCT Approximations: Theory and Hardware Architectures. Circuits Syst. Signal Process. 35 (11) (2016)
Uma Sadhvi Potluri, Arjuna Madanayake, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Amila Edirisuriya
Improved 8-point Approximate DCT for Image and Video Compression Requiring Only 14 Additions. CoRR (2015)
Yves Pauchard, Renato J. Cintra, Arjuna Madanayake, Fábio M. Bayer
Fast computation of residual complexity image similarity metric using low-complexity transforms. IET Image Process. 9 (8) (2015)
Nilanka T. Rajapaksha, Arjuna Madanayake, Renato J. Cintra, Jithra Adikari, Vassil S. Dimitrov
VLSI Computational Architectures for the Arithmetic Cosine Transform. IEEE Trans. Computers 64 (9) (2015)
Leandro Chaves Rêgo, Renato J. Cintra
An Extension of the Dirichlet Density for Sets of Gaussian Integers. CoRR (2015)
M. M. S. Lira, Hélio M. de Oliveira, Renato J. Cintra
Elliptic-cylindrical Wavelets: The Mathieu Wavelets. CoRR (2015)
Paulo A. M. Oliveira, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake
A Discrete Tchebichef Transform Approximation for Image and Video Coding. CoRR (2015)

Renato J. Cintra.css-eqlu8i{font-size:small;padding-left:4px;}

Publication Activity (10 Years)

Top Topics

Top Venues

Renato J. Cintra