Renato J. Cintra

According to our database, Renato J. Cintra authored at least 111 papers between 2002 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Fast data-independent KLT approximations based on integer functions.

Anabeth P. Radünz, Diego F. G. Coelho, Fábio M. Bayer, Renato J. Cintra, Arjuna Madanayake

Multim. Tools Appl., August, 2024

Design of Multichannel Spectrum Intelligence Systems Using Approximate Discrete Fourier Transform Algorithm for Antenna Array-Based Spectrum Perception Applications.

Arjuna Madanayake, Keththura Lawrance, Bopage Umesha Kumarasiri, Sivakumar Sivasankar, Thushara K. Gunaratne, Chamira U. S. Edussooriya, Renato J. Cintra

Algorithms, August, 2024

An Approximation for the 32-point Discrete Fourier Transform.

Renato J. Cintra

CoRR, 2024

Discrete Fourier Transform Approximations Based on the Cooley-Tukey Radix-2 Algorithm.

Diego F. G. Coelho, Renato J. Cintra

CoRR, 2024

Real-time 5.7 GHz Realization of Multidimensional 2D Hybrid Approximate DFT Spectrum Sensors for RF Situational Awareness.

Arjuna Madanayake, Keththura Lawrance, Sivakumar Sivasankar, Umesha Kumarasiri, Buddhipriya Gayanath, Renato J. Cintra, Soumyajit Mandal

Proceedings of the 67th IEEE International Midwest Symposium on Circuits and Systems, 2024

2023

Prediction intervals in the beta autoregressive moving average model.

Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra

Commun. Stat. Simul. Comput., August, 2023

Extensions on Low-Complexity DCT Approximations for Larger Blocklengths Based on Minimal Angle Similarity.

Anabeth P. Radünz, Luan Portella, Raíza S. Oliveira, Fábio M. Bayer, Renato J. Cintra

J. Signal Process. Syst., April, 2023

Low-complexity Multidimensional DCT Approximations.

Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer

CoRR, 2023

Analog Current-Mode 8-Point Approximate-DFT Multi-Beamformer With 4.7 Gbps Channel Capacity.

Haixiang Zhao, Arjuna Madanayake, Renato J. Cintra, Soumyajit Mandal

IEEE Access, 2023

2022

Robust Rayleigh Regression Method for SAR Image Processing in Presence of Outliers.

Bruna Gregory Palm, Fábio M. Bayer, Renato B. Machado, Mats I. Pettersson, Viet Thuy Vu, Renato J. Cintra

IEEE Trans. Geosci. Remote. Sens., 2022

A Class of Low-Complexity DCT-Like Transforms for Image and Video Coding.

Thiago L. T. da Silveira, Diego Ramos Canterle, Diego F. G. Coelho, Vítor de A. Coutinho, Fábio M. Bayer, Renato J. Cintra

IEEE Trans. Circuits Syst. Video Technol., 2022

Radix-$N$ Algorithm for Computing $N^{2^{n}}$-Point DFT Approximations.

Luan Portella, Diego F. G. Coelho, Fábio M. Bayer, Arjuna Madanayake, Renato J. Cintra

IEEE Signal Process. Lett., 2022

Data-independent low-complexity KLT approximations for image and video coding.

Anabeth P. Radünz, Thiago L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra

Signal Process. Image Commun., 2022

Improved Point Estimation for the Rayleigh Regression Model.

Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra

IEEE Geosci. Remote. Sens. Lett., 2022

Low-complexity rounded KLT approximation for image compression.

Anabeth P. Radünz, Fábio M. Bayer, Renato J. Cintra

J. Real Time Image Process., 2022

2-D Rayleigh autoregressive moving average model for SAR image modeling.

Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra

Comput. Stat. Data Anal., 2022

Low-Complexity Loeffler DCT Approximations for Image and Video Coding.

Diego F. G. Coelho, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake, P. A. C. Martinez, Thiago L. T. da Silveira, Raíza S. Oliveira, Vassil S. Dimitrov

CoRR, 2022

Towards a Low-SWaP 1024-beam Digital Array: A 32-beam Sub-system at 5.8 GHz.

Arjuna Madanayake, Viduneth Ariyarathna, Suresh Madishetty, Sravan Kumar Pulipati, Renato J. Cintra, Diego F. G. Coelho, Raíza Oliveira, Fábio M. Bayer, Leonid Belostotski, Soumyajit Mandal, Theodore S. Rappaport

CoRR, 2022

Autoregressive Model for Multi-Pass SAR Change Detection Based on Image Stacks.

Bruna Gregory Palm, Dimas Irion Alves, Viet Thuy Vu, Mats I. Pettersson, Fábio M. Bayer, Renato J. Cintra, Renato B. Machado, Patrik B. G. Dammert, Hans Hellsten

CoRR, 2022

Efficient and Self-Recursive Delay Vandermonde Algorithm for Multi-Beam Antenna Arrays.

Sirani M. Perera, Arjuna Madanayake, Renato J. Cintra

CoRR, 2022

2021

Low-Complexity Scaling Methodsfor DCT-II Approximations.

Diego F. G. Coelho, Renato J. Cintra, Arjuna Madanayake, Sirani M. Perera

IEEE Trans. Signal Process., 2021

Signal detection and inference based on the beta binomial autoregressive moving average model.

Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra

Digit. Signal Process., 2021

Low-complexity Scaling Methods for DCT-II Approximations.

Diego F. G. Coelho, Renato J. Cintra, Arjuna Madanayake, Sirani M. Perera

CoRR, 2021

Geometrical Representation for Number-theoretic Transforms.

Hélio M. de Oliveira, Renato J. Cintra

CoRR, 2021

Low-complexity three-dimensional discrete Hartley transform approximations for medical image compression.

Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer

Comput. Biol. Medicine, 2021

2020

A Low-SWaP 16-Beam 2.4 GHz Digital Phased Array Receiver Using DFT Approximation.

Vítor de A. Coutinho, Viduneth Ariyarathna, Diego F. G. Coelho, Sravan Kumar Pulipati, Renato J. Cintra, Arjuna Madanayake, Fábio M. Bayer, Vassil S. Dimitrov

IEEE Trans. Aerosp. Electron. Syst., 2020

A Multiparametric Class of Low-complexity Transforms for Image and Video Coding.

Diego Ramos Canterle, Thiago L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra

Signal Process., 2020

Wavelength-Resolution SAR Ground Scene Prediction Based on Image Stack.

Bruna Gregory Palm, Dimas Irion Alves, Mats I. Pettersson, Viet Thuy Vu, Renato B. Machado, Renato J. Cintra, Fábio M. Bayer, Patrik B. G. Dammert, Hans Hellsten

Sensors, 2020

The compound truncated Poisson Cauchy model: A descriptor for multimodal data.

Josimar M. Vasconcelos, Renato J. Cintra, Abraão David Costa do Nascimento, Leandro Chaves Rêgo

J. Comput. Appl. Math., 2020

Multi-dimensional wavelets for scalable image decomposition: Orbital wavelets.

Hélio M. de Oliveira, Victor Vermehren Valenzuela, Renato J. Cintra

Int. J. Wavelets Multiresolution Inf. Process., 2020

Low-complexity Architecture for AR(1) Inference.

A. Borges Jr., Renato J. Cintra, Diego F. G. Coelho, Vassil S. Dimitrov

CoRR, 2020

Rounded Hartley Transform: A Quasi-involution.

Renato J. Cintra, Hélio M. de Oliveira, C. O. Cintra

CoRR, 2020

Multidimensional Wavelets for Scalable Image Decomposition: Orbital Wavelets.

Hélio M. de Oliveira, Victor Vermehren Valenzuela, Renato J. Cintra

CoRR, 2020

Radix-2 Self-Recursive Sparse Factorizations of Delay Vandermonde Matrices for Wideband Multi-Beam Antenna Arrays.

Sirani M. Perera, Arjuna Madanayake, Renato J. Cintra

IEEE Access, 2020

Fast Radix-32 Approximate DFTs for 1024-Beam Digital RF Beamforming.

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

IEEE Access, 2020

Low-Complexity Real-Time Light Field Compression using 4-D Approximate DCT.

Namalka Liyanage, Chamith Wijenayake, Chamira U. S. Edussooriya, Arjuna Madanayake, Renato J. Cintra, Eliathamby Ambikairajah

Proceedings of the IEEE International Symposium on Circuits and Systems, 2020

2019

Detecting Changes in Fully Polarimetric SAR Imagery With Statistical Information Theory.

Abraao D. C. Nascimento, Alejandro C. Frery, Renato J. Cintra

IEEE Trans. Geosci. Remote. Sens., 2019

An iterative wavelet threshold for signal denoising.

Fábio M. Bayer, Alice J. Kozakevicius, Renato J. Cintra

Signal Process., 2019

Low-complexity 8-point DCT approximation based on angle similarity for image and video coding.

Raíza S. Oliveira, Renato J. Cintra, Fábio M. Bayer, Thiago L. T. da Silveira, Arjuna Madanayake, André Leite

Multidimens. Syst. Signal Process., 2019

Rayleigh Regression Model for Ground Type Detection in SAR Imagery.

Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra, Mats I. Pettersson, Renato B. Machado

IEEE Geosci. Remote. Sens. Lett., 2019

The gamma generalized normal distribution: A descriptor of SAR imagery.

Gauss M. Cordeiro, Renato J. Cintra, Leandro Chaves Rêgo, Abraão David Costa do Nascimento

J. Comput. Appl. Math., 2019

2018

Efficient Computation of the 8-point DCT via Summation by Parts.

Diego F. G. Coelho, Renato J. Cintra, Vassil S. Dimitrov

J. Signal Process. Syst., 2018

Low-Complexity Approximate Convolutional Neural Networks.

Renato J. Cintra, Stefan Duffner, Christophe Garcia, André Leite

IEEE Trans. Neural Networks Learn. Syst., 2018

Computation of 2D 8×8 DCT Based on the Loeffler Factorization Using Algebraic Integer Encoding.

Diego F. G. Coelho, Sushmabhargavi Nimmalapalli, Vassil S. Dimitrov, Arjuna Madanayake, Renato J. Cintra, Arnaud Tisserand

IEEE Trans. Computers, 2018

Wideband N-Beam Arrays Using Low-Complexity Algorithms and Mixed-Signal Integrated Circuits.

Sirani M. Perera, Viduneth Ariyarathna, Nilan Udayanga, Arjuna Madanayake, Ge Wu, Leonid Belostotski, Yingying Wang, Soumyajit Mandal, Renato J. Cintra, Theodore S. Rappaport

IEEE J. Sel. Top. Signal Process., 2018

Fast matrix inversion and determinant computation for Polarimetric Synthetic Aperture Radar.

Diego F. G. Coelho, Renato J. Cintra, Alejandro César Frery, Vassil S. Dimitrov

Comput. Geosci., 2018

Analog Approximate-FFT 8/16-Beam Algorithms, Architectures and CMOS Circuits for 5G Beamforming MIMO Transceivers.

Viduneth Ariyarathna, Arjuna Madanayake, Xinyao Tang, Diego F. G. Coelho, Renato J. Cintra, Leonid Belostotski, Soumyajit Mandal, Theodore S. Rappaport

IEEE J. Emerg. Sel. Topics Circuits Syst., 2018

Pruned Discrete Tchebichef Transform Approximation for Image Compression.

Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer, Paulo A. M. Oliveira, Raíza S. Oliveira, Arjuna Madanayake

Circuits Syst. Signal Process., 2018

An Offset-Canceling Approximate-DFT Beamforming Architecture for Wireless Transceivers.

Haixiang Zhao, Soumyajit Mandal, Viduneth Ariyarathna, Arjuna Madanayake, Renato J. Cintra

Proceedings of the IEEE International Symposium on Circuits and Systems, 2018

2017

Low-Complexity Multidimensional DCT Approximations for High-Order Tensor Data Decorrelation.

Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer

IEEE Trans. Image Process., 2017

Low-Complexity Image and Video Coding Based on an Approximate Discrete Tchebichef Transform.

Paulo A. M. Oliveira, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake

IEEE Trans. Circuits Syst. Video Technol., 2017

DFT Computation Using Gauss-Eisenstein Basis: FFT Algorithms and VLSI Architectures.

Diego F. G. Coelho, Renato J. Cintra, Nilanka T. Rajapaksha, Gihan J. Mendis, Arjuna Madanayake, Vassil S. Dimitrov

IEEE Trans. Computers, 2017

DCT approximations based on Chen's factorization.

C. J. Tablada, Thiago Lopes Trugillo da Silveira, Renato J. Cintra, Fábio M. Bayer

Signal Process. Image Commun., 2017

Multiplierless 16-point DCT approximation for low-complexity image and video coding.

Thiago Lopes Trugillo da Silveira, Raíza S. Oliveira, Fábio M. Bayer, Renato J. Cintra, Arjuna Madanayake

Signal Image Video Process., 2017

Fast Algorithms and Architectures for 8-Point DST-II/DST-VII Approximations.

Renato J. Cintra, Fábio M. Bayer, Arjuna Madanayake, Uma Sadhvi Potluri, Amila Edirisuriya

J. Circuits Syst. Comput., 2017

Comments on 'Area and power efficient DCT architecture for image compression' by Dhandapani and Ramachandran.

Renato J. Cintra, Fábio M. Bayer

EURASIP J. Adv. Signal Process., 2017

A Single-Channel Architecture for Algebraic Integer Based 8×8 2-D DCT Computation.

Amila Edirisuriya, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov

CoRR, 2017

Multiuser Communication Based on the DFT Eigenstructure.

Ricardo M. Campello de Souza, Hélio M. de Oliveira, Renato J. Cintra

CoRR, 2017

A Digital Hardware Fast Algorithm and FPGA-based Prototype for a Novel 16-point Approximate DCT for Image Compression Applications.

Fábio M. Bayer, Renato J. Cintra, Amila Edirisuriya, Arjuna Madanayake

CoRR, 2017

DCT-like Transform for Image Compression Requires 14 Additions Only.

Fábio M. Bayer, Renato J. Cintra

CoRR, 2017

Design of a low-complexity wideband analog true-time-delay 5-beam array in 65nm CMOS.

Arjuna Madanayake, Viduneth Ariyarathna, Nilan Udayanga, Leonid Belostotski, Sirani M. Perera, Renato J. Cintra

Proceedings of the IEEE 60th International Midwest Symposium on Circuits and Systems, 2017

A Parallel Method for the Computation of Matrix Exponential Based on Truncated Neumann Series.

Vassil S. Dimitrov, Viduneth Ariyarathna, Diego F. G. Coelho, Logan Rakai, Arjuna Madanayake, Renato J. Cintra

Proceedings of the 24th IEEE Symposium on Computer Arithmetic, 2017

2016

An orthogonal 16-point approximate DCT for image and video compression.

Thiago L. T. da Silveira, Fábio M. Bayer, Renato J. Cintra, Sunera Kulasekera, Arjuna Madanayake, Alice J. Kozakevicius

Multidimens. Syst. Signal Process., 2016

A multiplierless pruned DCT-like transformation for image and video compression that requires ten additions only.

Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake

J. Real Time Image Process., 2016

Error-free computation of 8-point discrete cosine transform based on the Loeffler factorisation and algebraic integers.

Diego F. G. Coelho, Renato J. Cintra, Sunera Kulasekera, Arjuna Madanayake, Vassil S. Dimitrov

IET Signal Process., 2016

Energy-Efficient 8-Point DCT Approximations: Theory and Hardware Architectures.

Renato J. Cintra, Fábio M. Bayer, Vítor de A. Coutinho, Sunera Kulasekera, Arjuna Madanayake, André Leite

Circuits Syst. Signal Process., 2016

A New Information Theoretical Concept: Information-Weighted Heavy-tailed Distributions.

Hélio M. de Oliveira, Renato J. Cintra

CoRR, 2016

Energy-efficient 8-point DCT Approximations: Theory and Hardware Architectures.

Renato J. Cintra, Fábio M. Bayer, Vítor de A. Coutinho, Sunera Kulasekera, Arjuna Madanayake

CoRR, 2016

2015

VLSI Computational Architectures for the Arithmetic Cosine Transform.

Nilanka T. Rajapaksha, Arjuna Madanayake, Renato J. Cintra, Jithra Adikari, Vassil S. Dimitrov

IEEE Trans. Computers, 2015

A Discrete Tchebichef Transform Approximation for Image and Video Coding.

Paulo A. M. Oliveira, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake

IEEE Signal Process. Lett., 2015

VLSI architecture for 4-D depth filtering.

Arjuna Madanayake, Randeel Wimalagunarathne, Donald G. Dansereau, Renato J. Cintra, Len T. Bruton

Signal Image Video Process., 2015

A class of DCT approximations based on the Feig-Winograd algorithm.

C. J. Tablada, Fábio M. Bayer, Renato J. Cintra

Signal Process., 2015

Fast computation of residual complexity image similarity metric using low-complexity transforms.

Yves Pauchard, Renato J. Cintra, Arjuna Madanayake, Fábio M. Bayer

IET Image Process., 2015

Multi-Beam RF Aperture Using Multiplierless FFT Approximation.

Dora Suarez, Renato J. Cintra, Fábio M. Bayer, Arindam Sengupta, Sunera Kulasekera, Arjuna Madanayake

CoRR, 2015

An Extension of the Dirichlet Density for Sets of Gaussian Integers.

Leandro Chaves Rêgo, Renato J. Cintra

CoRR, 2015

Fast Finite Field Hartley Transforms Based on Hadamard Decomposition.

Hélio M. de Oliveira, R. G. F. Távora, Renato J. Cintra, Ricardo M. Campello de Souza

CoRR, 2015

Multilayer Hadamard Decomposition of Discrete Hartley Transforms.

Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza

CoRR, 2015

A Factorization Scheme for Some Discrete Hartley Transform Matrices.

Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza

CoRR, 2015

Wavelets for Elliptical Waveguide Problems.

M. M. S. Lira, Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza

CoRR, 2015

A Short Survey on Arithmetic Transforms and the Arithmetic Hartley Transform.

Renato J. Cintra, Hélio M. de Oliveira

CoRR, 2015

Multi-beam 4 GHz Microwave Apertures Using Current-Mode DFT Approximation on 65 nm CMOS.

Viduneth Ariyarathna, Sunera Kulasekera, Arjuna Madanayake, Dora Suarez, Renato J. Cintra, Fábio M. Bayer, Leonid Belostotski

CoRR, 2015

Low-complexity pruned 8-point DCT approximations for image encoding.

Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake

Proceedings of the 25. International Conference on Electronics, 2015

2014

Bias Correction and Modified Profile Likelihood Under the Wishart Complex Distribution.

Abraao D. C. Nascimento, Alejandro César Frery, Renato J. Cintra

IEEE Trans. Geosci. Remote. Sens., 2014

Analytic Expressions for Stochastic Distances Between Relaxed Complex Wishart Distributions.

Alejandro César Frery, Abraao D. C. Nascimento, Renato J. Cintra

IEEE Trans. Geosci. Remote. Sens., 2014

Improved 8-Point Approximate DCT for Image and Video Compression Requiring Only 14 Additions.

Uma Sadhvi Potluri, Arjuna Madanayake, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Amila Edirisuriya

IEEE Trans. Circuits Syst. I Regul. Pap., 2014

Precise VLSI Architecture for AI Based 1-D/ 2-D Daub-6 Wavelet Filter Banks With Low Adder-Count.

Shiva Kumar Madishetty, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov

IEEE Trans. Circuits Syst. I Regul. Pap., 2014

Comparing Edge Detection Methods Based on Stochastic Entropies and Distances for PolSAR Imagery.

Abraão David Costa do Nascimento, Michelle Matos Horta, Alejandro C. Frery, Renato J. Cintra

IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2014

Low-complexity 8-point DCT approximations based on integer functions.

Renato J. Cintra, Fábio M. Bayer, C. J. Tablada

Signal Process., 2014

Algebraic integer architecture with minimum adder count for the 2-D Daubechies 4-tap filters banks.

Shiva Kumar Madishetty, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Dale H. Mugler

Multidimens. Syst. Signal Process., 2014

DCT-like Transform for Image and Video Compression Requires 10 Additions Only.

Renato J. Cintra, Fábio M. Bayer, Vítor de A. Coutinho, Sunera Kulasekera, Arjuna Madanayake

CoRR, 2014

Multiplierless Approximate 4-point DCT VLSI Architectures for Transform Block Coding.

Fábio M. Bayer, Renato J. Cintra, Arjuna Madanayake, Uma Sadhvi Potluri

CoRR, 2014

2013

Entropy-Based Statistical Analysis of PolSAR Data.

Alejandro César Frery, Renato J. Cintra, Abraao D. C. Nascimento

IEEE Trans. Geosci. Remote. Sens., 2013

A Single-Channel Architecture for Algebraic Integer-Based 8 × 8 2-D DCT Computation.

Amila Edirisuriya, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Nilanka T. Rajapaksha

IEEE Trans. Circuits Syst. Video Technol., 2013

VLSI Architectures for the 4-Tap and 6-Tap 2-D Daubechies Wavelet Filters Using Algebraic Integers.

Shiva Kumar Madishetty, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Dale H. Mugler

IEEE Trans. Circuits Syst. I Regul. Pap., 2013

Parametric and nonparametric tests for speckled imagery.

Renato J. Cintra, Alejandro César Frery, Abraão David Costa do Nascimento

Pattern Anal. Appl., 2013

Asynchronous Realization of Algebraic Integer-Based 2D DCT Using Achronix Speedster SPD60 FPGA.

Nilanka T. Rajapaksha, Amila Edirisuriya, Arjuna Madanayake, Renato J. Cintra, Denis Onen, Ihab Amer, Vassil S. Dimitrov

J. Electr. Comput. Eng., 2013

2012

A Row-Parallel 8 × 8 2-D DCT Architecture Using Algebraic Integer-Based Exact Computation.

Arjuna Madanayake, Renato J. Cintra, Denis Onen, Vassil S. Dimitrov, Nilanka T. Rajapaksha, Leonard T. Bruton, Amila Edirisuriya

IEEE Trans. Circuits Syst. Video Technol., 2012

Block-Parallel Systolic-Array Architecture for 2-d NTT-Based Fragile Watermark Embedding.

Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Leonard T. Bruton

Parallel Process. Lett., 2012

Error-free VLSI architecture for the 2-D Daubechies 4-tap filter using algebraic integers.

Shiva Madishetty, Arjuna Madanayake, Renato J. Cintra, Dale H. Mugler, Vassil S. Dimitrov

Proceedings of the 2012 IEEE International Symposium on Circuits and Systems, 2012

2011

A Generalized Prefix Construction for OFDM Systems Over Quasi-Static Channels.

Todor V. Cooklev, Hakan Dogan, Renato J. Cintra, Hakan Yildiz

IEEE Trans. Veh. Technol., 2011

A DCT Approximation for Image Compression.

Renato J. Cintra, Fábio M. Bayer

IEEE Signal Process. Lett., 2011

An Integer Approximation Method for Discrete Sinusoidal Transforms.

Renato J. Cintra

Circuits Syst. Signal Process., 2011

Algebraic integer based 8×8 2-D DCT architecture for digital video processing.

Arjuna Madanayake, Renato J. Cintra, Denis Onen, Vassil S. Dimitrov, Leonard T. Bruton

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2011), 2011

A new algorithm for double scalar multiplication over Koblitz curves.

Jithra Adikari, Vassil S. Dimitrov, Renato J. Cintra

Proceedings of the International Symposium on Circuits and Systems (ISCAS 2011), 2011

2010

The arithmetic cosine transform: exact and approximate algorithms.

Renato J. Cintra, Vassil S. Dimitrov

IEEE Trans. Signal Process., 2010

Hypothesis Testing in Speckled Data With Stochastic Distances.

Abraao D. C. Nascimento, Renato J. Cintra, Alejandro César Frery

IEEE Trans. Geosci. Remote. Sens., 2010

Contrast in speckled imagery with stochastic distances.

Alejandro César Frery, Abraao D. C. Nascimento, Renato J. Cintra

Proceedings of the International Conference on Image Processing, 2010

2009

Fragile watermarking using finite field trigonometrical transforms.

Renato J. Cintra, Vassil S. Dimitrov, Hélio M. de Oliveira, Ricardo M. Campello de Souza

Signal Process. Image Commun., 2009

Robust image watermarking using non-regular wavelets.

Renato J. Cintra, Todor V. Cooklev

Signal Image Video Process., 2009

2004

Elliptic-cylindrical wavelets: the Mathieu wavelets.

M. M. S. Lira, Hélio Magalhães de Oliveira, Renato J. Cintra

IEEE Signal Process. Lett., 2004

2002

How to interpolate in arithmetic transform algorithms.

Renato J. Cintra, Hélio M. de Oliveira

Proceedings of the IEEE International Conference on Acoustics, 2002