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ORCIDRenato J. Cintra
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- affiliation: Federal University of Pernambuco
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2020 – today
- 2024
[j72]Arjuna Madanayake
, Keththura Lawrance, Bopage Umesha Kumarasiri, Sivakumar Sivasankar, Thushara K. Gunaratne, Chamira U. S. Edussooriya, Renato J. Cintra:
Design of Multichannel Spectrum Intelligence Systems Using Approximate Discrete Fourier Transform Algorithm for Antenna Array-Based Spectrum Perception Applications. Algorithms 17(8): 338 (2024)- [j71]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): 67303-67325 (2024) - [c11]Arjuna Madanayake, Keththura Lawrance, Sivakumar Sivasankar, Umesha Kumarasiri, Buddhipriya Gayanath, Renato J. Cintra, Soumyajit Mandal:
Real-time 5.7 GHz Realization of Multidimensional 2D Hybrid Approximate DFT Spectrum Sensors for RF Situational Awareness. MWSCAS 2024: 888-892 - [i68]Diego F. G. Coelho, Renato J. Cintra:
Discrete Fourier Transform Approximations Based on the Cooley-Tukey Radix-2 Algorithm. CoRR abs/2402.16225 (2024) - [i67]Renato J. Cintra:
An Approximation for the 32-point Discrete Fourier Transform. CoRR abs/2407.12708 (2024) - 2023
- [j70]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: 53716-53735 (2023) - [j69]Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra:
Prediction intervals in the beta autoregressive moving average model. Commun. Stat. Simul. Comput. 52(8): 3635-3656 (2023) - [j68]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): 495-516 (2023) - [i66]Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer:
Low-complexity Multidimensional DCT Approximations. CoRR abs/2306.11724 (2023) - [i65]Fábio M. Bayer, Alice J. Kozakevicius, Renato J. Cintra:
An Iterative Wavelet Threshold for Signal Denoising. CoRR abs/2307.10509 (2023) - 2022
- [j67]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: 107453 (2022) - [j66]Anabeth P. Radünz, Fábio M. Bayer, Renato J. Cintra:
Low-complexity rounded KLT approximation for image compression. J. Real Time Image Process. 19(1): 173-183 (2022) - [j65]Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra:
Improved Point Estimation for the Rayleigh Regression Model. IEEE Geosci. Remote. Sens. Lett. 19: 1-4 (2022) - [j64]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: 116585 (2022) - [j63]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: 1838-1842 (2022) - [j62]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): 4364-4375 (2022) - [j61]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: 1-12 (2022) - [i64]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 abs/2206.00122 (2022) - [i63]Vítor de A. Coutinho, Fábio M. Bayer, Renato J. Cintra:
Low-complexity Three-dimensional Discrete Hartley Transform Approximations for Medical Image Compression. CoRR abs/2206.00124 (2022) - [i62]Sirani M. Perera, Arjuna Madanayake, Renato J. Cintra:
Efficient and Self-Recursive Delay Vandermonde Algorithm for Multi-Beam Antenna Arrays. CoRR abs/2206.00778 (2022) - [i61]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 abs/2206.00779 (2022) - [i60]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 abs/2206.01146 (2022) - [i59]Gauss M. Cordeiro, Renato J. Cintra, Leandro Chaves Rêgo, Abraao D. C. Nascimento:
The Gamma Generalized Normal Distribution: A Descriptor of SAR Imagery. CoRR abs/2206.01826 (2022) - [i58]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:
Autoregressive Model for Multi-Pass SAR Change Detection Based on Image Stacks. CoRR abs/2206.02278 (2022) - [i57]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. CoRR abs/2207.05866 (2022) - [i56]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:
Towards a Low-SWaP 1024-beam Digital Array: A 32-beam Sub-system at 5.8 GHz. CoRR abs/2207.09054 (2022) - [i55]Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra:
Prediction Intervals in the Beta Autoregressive Moving Average Model. CoRR abs/2207.11628 (2022) - [i54]C. J. Tablada, Thiago L. T. da Silveira, Renato J. Cintra, Fábio M. Bayer:
DCT Approximations Based on Chen's Factorization. CoRR abs/2207.11638 (2022) - [i53]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:
Low-Complexity Loeffler DCT Approximations for Image and Video Coding. CoRR abs/2207.14463 (2022) - [i52]Renato J. Cintra, Stefan Duffner, Christophe Garcia, André Leite:
Low-complexity Approximate Convolutional Neural Networks. CoRR abs/2208.00087 (2022) - [i51]Bruna Gregory Palm, Fábio Mariano 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. CoRR abs/2208.00097 (2022) - [i50]Bruna Gregory Palm, Fábio M. Bayer, Renato J. Cintra:
Improved Point Estimation for the Rayleigh Regression Model. CoRR abs/2208.03611 (2022) - 2021
- [j60]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: 105018 (2021) - [j59]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: 102911 (2021) - [j58]Diego F. G. Coelho, Renato J. Cintra, Arjuna Madanayake, Sirani M. Perera:
Low-Complexity Scaling Methodsfor DCT-II Approximations. IEEE Trans. Signal Process. 69: 4557-4566 (2021) - [i49]Hélio M. de Oliveira, Renato J. Cintra:
Geometrical Representation for Number-theoretic Transforms. CoRR abs/2103.04832 (2021) - [i48]Diego F. G. Coelho, Renato J. Cintra, Arjuna Madanayake, Sirani M. Perera:
Low-complexity Scaling Methods for DCT-II Approximations. CoRR abs/2108.02119 (2021) - [i47]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. CoRR abs/2111.14237 (2021) - [i46]Anabeth P. Radünz, Fábio M. Bayer, Renato J. Cintra:
Low-complexity Rounded KLT Approximation for Image Compression. CoRR abs/2111.14239 (2021) - 2020
- [j57]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: 25498-25508 (2020) - [j56]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: 96613-96627 (2020) - [j55]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): 2050038:1-2050038:11 (2020) - [j54]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: 112887 (2020) - [j53]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:
Wavelength-Resolution SAR Ground Scene Prediction Based on Image Stack. Sensors 20(7): 2008 (2020) - [j52]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: 107685 (2020) - [j51]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): 3645-3654 (2020) - [c10]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: 1-5 - [i45]Hélio M. de Oliveira, Victor Vermehren Valenzuela, Renato J. Cintra:
Multidimensional Wavelets for Scalable Image Decomposition: Orbital Wavelets. CoRR abs/2006.07920 (2020) - [i44]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 abs/2006.11418 (2020) - [i43]Renato J. Cintra:
An Integer Approximation Method for Discrete Sinusoidal Transforms. CoRR abs/2007.02232 (2020) - [i42]Renato J. Cintra, Hélio M. de Oliveira, C. O. Cintra:
Rounded Hartley Transform: A Quasi-involution. CoRR abs/2008.03379 (2020) - [i41]A. Borges Jr., Renato J. Cintra, Diego F. G. Coelho, Vassil S. Dimitrov:
Low-complexity Architecture for AR(1) Inference. CoRR abs/2008.09633 (2020)
2010 – 2019
- 2019
- [j50]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: 257-272 (2019) - [j49]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): 1660-1664 (2019) - [j48]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): 1363-1394 (2019) - [j47]Fábio M. Bayer, Alice J. Kozakevicius, Renato J. Cintra:
An iterative wavelet threshold for signal denoising. Signal Process. 162: 10-20 (2019) - [j46]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): 1380-1392 (2019) - 2018
- [j45]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): 4363-4383 (2018) - [j44]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): 466-479 (2018) - [j43]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: 109-114 (2018) - [j42]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): 368-382 (2018) - [j41]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): 1692-1702 (2018) - [j40]Renato J. Cintra, Stefan Duffner, Christophe Garcia, André Leite:
Low-Complexity Approximate Convolutional Neural Networks. IEEE Trans. Neural Networks Learn. Syst. 29(12): 5981-5992 (2018) - [j39]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): 505-514 (2018) - [c9]Haixiang Zhao, Soumyajit Mandal, Viduneth Ariyarathna, Arjuna Madanayake, Renato J. Cintra:
An Offset-Canceling Approximate-DFT Beamforming Architecture for Wireless Transceivers. ISCAS 2018: 1-5 - [i40]Diego F. G. Coelho, Renato J. Cintra, Vassil S. Dimitrov:
Efficient Computation of the 8-point DCT via Summation by Parts. CoRR abs/1801.05832 (2018) - [i39]Jithra Adikari, Vassil S. Dimitrov, Renato J. Cintra:
A New Algorithm for Double Scalar Multiplication over Koblitz Curves. CoRR abs/1801.08589 (2018) - [i38]Abraão David Costa do Nascimento, Alejandro C. Frery, Renato J. Cintra:
Detecting Changes in Fully Polarimetric SAR Imagery with Statistical Information Theory. CoRR abs/1801.08901 (2018) - [i37]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 abs/1807.08084 (2018) - [i36]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 abs/1808.02950 (2018) - 2017
- [j38]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: 50 (2017) - [j37]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): 1750045:1-1750045:11 (2017) - [j36]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): 227-233 (2017) - [j35]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: 14-23 (2017) - [j34]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): 1442-1448 (2017) - [j33]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): 1066-1076 (2017) - [j32]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): 2296-2310 (2017) - [c8]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: 35-42 - [c7]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: 1204-1207 - [i35]Fábio M. Bayer, Renato J. Cintra:
DCT-like Transform for Image Compression Requires 14 Additions Only. CoRR abs/1702.00817 (2017) - [i34]Ricardo M. Campello de Souza, Hélio M. de Oliveira, Renato J. Cintra:
Multiuser Communication Based on the DFT Eigenstructure. CoRR abs/1702.01793 (2017) - [i33]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 abs/1702.01805 (2017) - [i32]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 abs/1710.09975 (2017) - [i31]Nilanka T. Rajapaksha, Arjuna Madanayake, Renato J. Cintra, Jithra Adikari, Vassil S. Dimitrov:
VLSI Computational Architectures for the Arithmetic Cosine Transform. CoRR abs/1710.11200 (2017) - 2016
- [j31]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): 4009-4029 (2016) - [j30]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): 633-640 (2016) - [j29]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): 247-255 (2016) - [j28]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): 87-104 (2016) - [i30]Hélio M. de Oliveira, Renato J. Cintra:
A New Information Theoretical Concept: Information-Weighted Heavy-tailed Distributions. CoRR abs/1601.06412 (2016) - [i29]Todor Cooklev, Hakan Dogan, Renato J. Cintra, Hakan Yildiz:
A Generalized Prefix Construction for OFDM Systems Over Quasi-Static Channels. CoRR abs/1601.07207 (2016) - [i28]Renato J. Cintra, Todor V. Cooklev:
Robust Image Watermarking Using Non-Regular Wavelets. CoRR abs/1601.07232 (2016) - [i27]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 abs/1606.05562 (2016) - [i26]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 abs/1606.07414 (2016) - [i25]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 abs/1609.07630 (2016) - [i24]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 abs/1612.00807 (2016) - [i23]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 abs/1612.03461 (2016) - 2015
- [j27]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): 699-708 (2015) - [j26]C. J. Tablada, Fábio M. Bayer, Renato J. Cintra:
A class of DCT approximations based on the Feig-Winograd algorithm. Signal Process. 113: 38-51 (2015) - [j25]Arjuna Madanayake, Randeel Wimalagunarathne, Donald G. Dansereau, Renato J. Cintra, Len T. Bruton:
VLSI architecture for 4-D depth filtering. Signal Image Video Process. 9(4): 809-818 (2015) - [j24]Paulo A. M. Oliveira, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake:
A Discrete Tchebichef Transform Approximation for Image and Video Coding. IEEE Signal Process. Lett. 22(8): 1137-1141 (2015) - [j23]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): 2708-2715 (2015) - [c6]Vítor de A. Coutinho, Renato J. Cintra, Fábio M. Bayer, Sunera Kulasekera, Arjuna Madanayake:
Low-complexity pruned 8-point DCT approximations for image encoding. CONIELECOMP 2015: 1-7 - [i22]Dora Suarez, Renato J. Cintra, Fábio M. Bayer, Arindam Sengupta, Sunera Kulasekera, Arjuna Madanayake:
Multi-Beam RF Aperture Using Multiplierless FFT Approximation. CoRR abs/1501.01946 (2015) - [i21]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 abs/1501.02995 (2015) - [i20]M. M. S. Lira, Hélio M. de Oliveira, Renato J. Cintra:
Elliptic-cylindrical Wavelets: The Mathieu Wavelets. CoRR abs/1501.07255 (2015) - [i19]Hélio M. de Oliveira, R. G. F. Távora, Renato J. Cintra, Ricardo M. Campello de Souza:
Fast Finite Field Hartley Transforms Based on Hadamard Decomposition. CoRR abs/1502.00277 (2015) - [i18]Renato J. Cintra, Vassil S. Dimitrov, Hélio M. de Oliveira, Ricardo M. Campello de Souza:
Fragile Watermarking Using Finite Field Trigonometrical Transforms. CoRR abs/1502.00296 (2015) - [i17]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 abs/1502.00555 (2015) - [i16]C. J. Tablada, Fábio M. Bayer, Renato J. Cintra:
A Class of DCT Approximations Based on the Feig-Winograd Algorithm. CoRR abs/1502.00592 (2015) - [i15]Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza:
A Factorization Scheme for Some Discrete Hartley Transform Matrices. CoRR abs/1502.01038 (2015) - [i14]Renato J. Cintra, Vassil S. Dimitrov:
The Arithmetic Cosine Transform: Exact and Approximate Algorithms. CoRR abs/1502.01377 (2015) - [i13]Leandro Chaves Rêgo, Renato J. Cintra:
An Extension of the Dirichlet Density for Sets of Gaussian Integers. CoRR abs/1502.01866 (2015) - [i12]Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza:
Multilayer Hadamard Decomposition of Discrete Hartley Transforms. CoRR abs/1502.02168 (2015) - [i11]Arjuna Madanayake, Renato J. Cintra, Denis Onen, Vassil S. Dimitrov, Nilanka T. Rajapaksha, Leonard T. Bruton, Amila Edirisuriya:
A Row-parallel 8×8 2-D DCT Architecture Using Algebraic Integer Based Exact Computation. CoRR abs/1502.04221 (2015) - [i10]M. M. S. Lira, Hélio M. de Oliveira, Renato J. Cintra, Ricardo M. Campello de Souza:
Wavelets for Elliptical Waveguide Problems. CoRR abs/1504.05262 (2015) - [i9]Renato J. Cintra, Hélio M. de Oliveira:
A Short Survey on Arithmetic Transforms and the Arithmetic Hartley Transform. CoRR abs/1504.06106 (2015) - [i8]Viduneth Ariyarathna, Sunera Kulasekera, Arjuna Madanayake, Dora Suarez, Renato J. Cintra, Fábio M. Bayer, Leonid Belostotski:
Multi-beam 4 GHz Microwave Apertures Using Current-Mode DFT Approximation on 65 nm CMOS. CoRR abs/1505.06345 (2015) - 2014
- [j22]Shiva Kumar Madishetty, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Dale H. Mugler:
Algebraic integer architecture with minimum adder count for the 2-D Daubechies 4-tap filters banks. Multidimens. Syst. Signal Process. 25(4): 829-845 (2014) - [j21]Renato J. Cintra, Fábio M. Bayer, C. J. Tablada:
Low-complexity 8-point DCT approximations based on integer functions. Signal Process. 99: 201-214 (2014) - [j20]Abraão David Costa do Nascimento, Michelle Matos Horta, Alejandro C. Frery, Renato J. Cintra:
Comparing Edge Detection Methods Based on Stochastic Entropies and Distances for PolSAR Imagery. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 7(2): 648-663 (2014) - [j19]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. IEEE Trans. Circuits Syst. I Regul. Pap. 61-I(6): 1727-1740 (2014) - [j18]Shiva Kumar Madishetty, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov:
Precise VLSI Architecture for AI Based 1-D/ 2-D Daub-6 Wavelet Filter Banks With Low Adder-Count. IEEE Trans. Circuits Syst. I Regul. Pap. 61-I(7): 1984-1993 (2014) - [j17]Alejandro César Frery, Abraao D. C. Nascimento, Renato J. Cintra:
Analytic Expressions for Stochastic Distances Between Relaxed Complex Wishart Distributions. IEEE Trans. Geosci. Remote. Sens. 52(2): 1213-1226 (2014) - [j16]Abraao D. C. Nascimento, Alejandro César Frery, Renato J. Cintra:
Bias Correction and Modified Profile Likelihood Under the Wishart Complex Distribution. IEEE Trans. Geosci. Remote. Sens. 52(8): 4932-4941 (2014) - [i7]Renato J. Cintra, Fábio M. Bayer, Vítor de A. Coutinho, Sunera Kulasekera, Arjuna Madanayake:
DCT-like Transform for Image and Video Compression Requires 10 Additions Only. CoRR abs/1402.5979 (2014) - [i6]Renato J. Cintra, Fábio M. Bayer:
A DCT Approximation for Image Compression. CoRR abs/1402.6034 (2014) - [i5]Abraão David Costa do Nascimento, Alejandro César Frery, Renato J. Cintra:
Bias Correction and Modified Profile Likelihood under the Wishart Complex Distribution. CoRR abs/1404.4880 (2014) - [i4]Fábio M. Bayer, Renato J. Cintra, Arjuna Madanayake, Uma Sadhvi Potluri:
Multiplierless Approximate 4-point DCT VLSI Architectures for Transform Block Coding. CoRR abs/1405.0413 (2014) - 2013
- [j15]Nilanka T. Rajapaksha, Amila Edirisuriya, Arjuna Madanayake, Renato J. Cintra, Denis Onen, Ihab Amer, Vassil S. Dimitrov:
Asynchronous Realization of Algebraic Integer-Based 2D DCT Using Achronix Speedster SPD60 FPGA. J. Electr. Comput. Eng. 2013: 834793:1-834793:9 (2013) - [j14]Renato J. Cintra, Alejandro César Frery, Abraão David Costa do Nascimento:
Parametric and nonparametric tests for speckled imagery. Pattern Anal. Appl. 16(2): 141-161 (2013) - [j13]Shiva Kumar Madishetty, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Dale H. Mugler:
VLSI Architectures for the 4-Tap and 6-Tap 2-D Daubechies Wavelet Filters Using Algebraic Integers. IEEE Trans. Circuits Syst. I Regul. Pap. 60-I(6): 1455-1468 (2013) - [j12]Amila Edirisuriya, Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Nilanka T. Rajapaksha:
A Single-Channel Architecture for Algebraic Integer-Based 8 × 8 2-D DCT Computation. IEEE Trans. Circuits Syst. Video Technol. 23(12): 2083-2089 (2013) - [j11]Alejandro César Frery, Renato J. Cintra, Abraao D. C. Nascimento:
Entropy-Based Statistical Analysis of PolSAR Data. IEEE Trans. Geosci. Remote. Sens. 51(6-2): 3733-3743 (2013) - [i3]Abraão David Costa do Nascimento, Michelle Matos Horta, Alejandro César Frery, Renato J. Cintra:
Comparing Edge Detection Methods based on Stochastic Entropies and Distances for PolSAR Imagery. CoRR abs/1306.2003 (2013) - 2012
- [j10]Arjuna Madanayake, Renato J. Cintra, Vassil S. Dimitrov, Leonard T. Bruton:
Block-Parallel Systolic-Array Architecture for 2-d NTT-Based Fragile Watermark Embedding. Parallel Process. Lett. 22(3) (2012) - [j9]Arjuna Madanayake, Renato J. Cintra, Denis Onen, Vassil S. Dimitrov, Nilanka T. Rajapaksha, Leonard T. Bruton, Amila Edirisuriya:
A Row-Parallel 8 × 8 2-D DCT Architecture Using Algebraic Integer-Based Exact Computation. IEEE Trans. Circuits Syst. Video Technol. 22(6): 915-929 (2012) - [c5]Shiva Madishetty, Arjuna Madanayake, Renato J. Cintra, Dale H. Mugler, Vassil S. Dimitrov:
Error-free VLSI architecture for the 2-D Daubechies 4-tap filter using algebraic integers. ISCAS 2012: 1484-1487 - [i2]Renato J. Cintra, Abraao D. C. Nascimento, Alejandro César Frery:
Parametric and Nonparametric Tests for Speckled Imagery. CoRR abs/1207.2378 (2012) - [i1]Abraao D. C. Nascimento, Renato J. Cintra, Alejandro César Frery:
Hypothesis Testing in Speckled Data with Stochastic Distances. CoRR abs/1207.2959 (2012) - 2011
- [j8]Renato J. Cintra:
An Integer Approximation Method for Discrete Sinusoidal Transforms. Circuits Syst. Signal Process. 30(6): 1481-1501 (2011) - [j7]Renato J. Cintra, Fábio M. Bayer:
A DCT Approximation for Image Compression. IEEE Signal Process. Lett. 18(10): 579-582 (2011) - [j6]Todor V. Cooklev, Hakan Dogan, Renato J. Cintra, Hakan Yildiz:
A Generalized Prefix Construction for OFDM Systems Over Quasi-Static Channels. IEEE Trans. Veh. Technol. 60(8): 3684-3693 (2011) - [c4]Jithra Adikari, Vassil S. Dimitrov, Renato J. Cintra:
A new algorithm for double scalar multiplication over Koblitz curves. ISCAS 2011: 709-712 - [c3]Arjuna Madanayake, Renato J. Cintra, Denis Onen, Vassil S. Dimitrov, Leonard T. Bruton:
Algebraic integer based 8×8 2-D DCT architecture for digital video processing. ISCAS 2011: 1247-1250 - 2010
- [j5]Abraao D. C. Nascimento, Renato J. Cintra, Alejandro César Frery:
Hypothesis Testing in Speckled Data With Stochastic Distances. IEEE Trans. Geosci. Remote. Sens. 48(1-2): 373-385 (2010) - [j4]Renato J. Cintra, Vassil S. Dimitrov:
The arithmetic cosine transform: exact and approximate algorithms. IEEE Trans. Signal Process. 58(6): 3076-3085 (2010) - [c2]Alejandro César Frery, Abraao D. C. Nascimento, Renato J. Cintra:
Contrast in speckled imagery with stochastic distances. ICIP 2010: 69-72
2000 – 2009
- 2009
- [j3]Renato J. Cintra, Todor V. Cooklev:
Robust image watermarking using non-regular wavelets. Signal Image Video Process. 3(3): 241-250 (2009) - [j2]Renato J. Cintra, Vassil S. Dimitrov, Hélio M. de Oliveira, Ricardo M. Campello de Souza:
Fragile watermarking using finite field trigonometrical transforms. Signal Process. Image Commun. 24(7): 587-597 (2009) - 2004
- [j1]M. M. S. Lira, Hélio Magalhães de Oliveira, Renato J. Cintra:
Elliptic-cylindrical wavelets: the Mathieu wavelets. IEEE Signal Process. Lett. 11(1): 52-55 (2004) - 2002
- [c1]Renato J. Cintra, Hélio M. de Oliveira:
How to interpolate in arithmetic transform algorithms. ICASSP 2002: 4169
Coauthor Index
Fábio M. Bayer
aka: Fábio Mariano Bayer
aka: Fábio Mariano Bayer
[j71] [j69] [j68] [i66] [i65] [j67] [j66] [j65] [j64] [j63] [j62] [j61] [i64] [i63] [i58] [i57] [i56] [i55] [i54] [i53] [i51] [i50] [j60] [j59] [i47] [i46] [j56] [j53] [j52] [j51] [i44] [j49] [j48] [j47] [j45] [i36] [j38] [j37] [j36] [j35] [j33] [j32] [i35] [i33] [j31] [j29] [j28] [i27] [i26] [i25] [i24] [i23] [j27] [j26] [j24] [c6] [i22] [i21] [i17] [i16] [i8] [j21] [j19] [i7] [i6] [i4] [j7]
Alejandro C. Frery
aka: Alejandro César Frery
aka: Alejandro César Frery
[j72] [j71] [c11] [j70] [j63] [i62] [i61] [i60] [i57] [i56] [i53] [j58] [i48] [j57] [j56] [j51] [c10] [j48] [j45] [j44] [j42] [j41] [c9] [i36] [j37] [j36] [j34] [j33] [c8] [c7] [i33] [i32] [i31] [j31] [j30] [j29] [j28] [i27] [i26] [i25] [i24] [i23] [j27] [j25] [j24] [j23] [c6] [i22] [i21] [i17] [i11] [i8] [j22] [j19] [j18] [i7] [i4] [j15] [j13] [j12] [j10] [j9] [c5] [c3]
Abraao D. C. Nascimento
aka: Abraão David Costa do Nascimento
aka: Abraão David Costa do Nascimento
Hélio M. de Oliveira
aka: Hélio Magalhães de Oliveira
aka: Hélio Magalhães de Oliveira
Bruna G. Palm
aka: Bruna Gregory Palm
aka: Bruna Gregory Palm
Thiago L. T. da Silveira
aka: Thiago Lopes Trugillo da Silveira
aka: Thiago Lopes Trugillo da Silveira
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