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ORCIDRenato J. Cintra
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- affiliation: Federal University of Pernambuco
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2020 – today
- 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)- 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 I. 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 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): 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]