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Renato J. Cintra
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Publications
- 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) - 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) - [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) - [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) - [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) - 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) - [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) - 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) - [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 - 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) - 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) - [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) - [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 - [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
- [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) - [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) - [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 - [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) - [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) - [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) - [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) - [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) - [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) - [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) - [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) - [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) - [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) - 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 - 2011
- [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
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