Wednesday, August 19, 2015

#1 and #8 in Top Download Charts

The paper "Low-Power VLSI Architectures for DCT/DWT: Precision vs Approximation for HD Video, Biomedical, and Smart Antenna Applications" by A. Madanayake, R. J. Cintra, V. Dimitrov, F. M. Bayer, K. A. Wahid, S. Kulasekera, A. Edirisuriya, U. S. Potluri, S. K. Madishetty, and N. Nilanka is ranked as #1 in the list of most downloaded papers from IEEE Circuits and Systems Magazine.

A screenshot of the top list is available: here.

Also, the paper "Improved 8-Point Approximate DCT for Image and Video Compression Requiring Only 14 Additions" by U. S. Potluri, A. Madanayake, R. J. Cintra, F. M. Bayer, S. Kulasekera, and A. Edirisuriya remains active in the top download charts; now in position #8. The chart is available here.

Congratulations to all authors!

PS: Thanks to Dr Bayer for pointing this out.


Wednesday, June 24, 2015

Still in top list, now in #3 position

The paper

"Low-Power VLSI Architectures for DCT/DWT: Precision vs Approximation for HD Video, Biomedical, and Smart Antenna Applications"

by Madanayake, A. ; Cintra, R.J. ; Dimitrov, V. ; Bayer, F.M. ; Wahid, K.A. ; Kulasekera, S. ; Edirisuriya, A. ; Potluri, U.S. ; Madishetty, S.K. ; Rajapaksha, N. is still ranked in top positions (#3) according to the download counter of IEEE Circuits and Systems Magazine.

The ranking is updated monthly. A screenshot of the chart is available here.

Congratulations to all authors!

PS: We thank Dr Bayer for pointing this out.

#2 in IET Image Processing

The paper "Fast computation of residual complexity image similarity metric using low-complexity transforms" by Yves Pauchard, Renato J. Cintra, Arjuna Madanayake, and Fábio M. Bayer is ranked second in the list of most downloaded papers from IET Image Processing.

A screenshot of the top list is available: here.

There are much more to be done in terms of applying efficient discrete transforms in the biomedical problems.

Congratulations to all authors!

PS: Thanks to Dr Bayer for this information.

Sunday, May 17, 2015

#2 Place in The Top-download Chart

The paper

"Low-Power VLSI Architectures for DCT/DWT: Precision vs Approximation for HD Video, Biomedical, and Smart Antenna Applications"

by Madanayake, A. ; Cintra, R.J. ; Dimitrov, V. ; Bayer, F.M. ; Wahid, K.A. ; Kulasekera, S. ; Edirisuriya, A. ; Potluri, U.S. ; Madishetty, S.K. ; Rajapaksha, N. is now ranked in #2 position according to the download counter of IEEE Circuits and Systems Magazine.

The ranking is updated monthly. A screenshot of the chart is available here.

Congratulations to all authors!

PS: We thank Dr Bayer for pointing this out.

Thursday, April 16, 2015

Top Downloaded Paper


During March 2015, our paper

"Low-Power VLSI Architectures for DCT/DWT: Precision vs Approximation for HD Video, Biomedical, and Smart Antenna Applications"

was ranked in #3 position according to the download counter of IEEE Circuits and Systems Magazine.

The ranking is updated monthly. A screenshot with our paper is available here.

Congratulations to all authors!

PS: We thank Dr Bayer for pointing this out.

Wednesday, March 11, 2015

Thesis Defense on DFT Computation over Mixed Lattices

Group member Diego F G Coelho defended his thesis on signal processing and fast algorithm design.

Diego F G Coelho has defended a thesis entitled

"Discrete Fourier Transform Computation Based on an Algebraic Integer Representation" [Transformada Discreta de Fourier Baseada em uma Representação para Números Complexos com Inteiros Algébricos]

to the Graduate Program in Statistics. The work was advised by Dr R J Cintra. Examining committee was composed by Dr H M de Oliveira, Dr F M Bayer, and Dr A D C Nascimento.

Congratulations to Diego!

Dr A D C Nascimento, D F G Coelho, Dr F M Bayer e Dr H M de Oliveira

Paper on Approximate 2-D DFT for Beamforming Is Accepted at IEEE MERCon 2014

The paper "Multi-Beam 8x8 RF Aperture Digital Beamformers Using Multiplierless 2-D FFT Approximations" has been ACCEPTED for MERCon 2015 subjected to revisions suggested by the reviewers.

List of authors: Sunera Kulasekera, Dr Arjuna Madanayake, Dr Renato J Cintra, Dora Suarez, Dr Fabio Bayer, and Chamith Wijenayake

The MERCon is an IEEE sponsored conference. Website: http://mercon.mrt.ac.lk

Congratulations to all authors!

Thursday, March 5, 2015

Best Paper Award at CONIELECOMP 2015

Great news!

Our nominated paper  "Low-complexity Pruned 8-point DCT Approximations for Image Encoding" by V A Coutinho, R J Cintra, F M Bayer, S Kulasekera, and A Madanayake received the best paper award at CONIELECOMP 2015, an IEEE sponsored conference.

A video record of the award is here. Deep congratulations!




Wednesday, February 25, 2015

Nomination to Best Paper Award

The work "Low-complexity Pruned 8-point DCT Approximations for Image Encoding" by V A Coutinho, R J Cintra, F M Bayer, S Kulasekera, and A Madanayake has been nominated to the Best Paper Award based on the obtained scores from the reviewing process of CONIELECOMP 2015.

CONIELECOMP 2015 is an IEEE sponsored international conference and its accepted works are archived in IEEEXplorer.

Congratulations to all authors.

Monday, February 23, 2015

Two Thesis Defenses: Pruned DCT & Approximate DFT

Today we had two successful thesis defenses from our group members: Vítor A Coutinho and Dora M Suarez Villagrán. Both works are on signal processing and fast algorithm design.

Vítor Coutinho defended his thesis entitled
 "Pruned DCT Approximations with Application in Image and Video Coding" [Aproximações para a DCT via Pruning com Apliacações em Codificação de Imagem e Vídeo] 
to the Graduate Program in Electrical Engineering. The work was advised by Dr R J Cintra and Dr R M Campello de Souza. Examining committee was composed by Dr J Ranhel, Dr F M Bayer, and Dr R M Campello de Souza.

To Graduate Program in Statistics, Dora Suarez Villagrán has defended her thesis entitled
"Approximations to the Discrete Fourier Transform and Applications in Detection and Estimation" [Aproximações para a Transformada Discreta de Fourier e Aplicações em Detecção e Estimação].
The work was advised by Dr R J Cintra and Dr F M Bayer. Examining committee was composed by Dr L C Rêgo, Dr H M de Oliveira, and Dr F M Bayer.

Both defenses were greatly successful!

Congratulations to Vítor and Dora!

Sunday, February 22, 2015

Accepted Paper in Image Processing


The manuscript "A Multiplierless Pruned DCT-Like Transformation for Image and Video Compression that Requires Ten Additions Only" by V A Coutinho, R J Cintra, F M Bayer, S Kulasekera, and A Madanayake was accepted in the special issue on HEVC of Journal of Real-time Image Processing.

An early (unreviewed) pre-print is available in arXiv here.

This paper is a result from Vitor's dissertation.

Congratulations to all authors!

Sunday, February 8, 2015

Beamforming and the Approximate DFT

Group member Dora Suarez has her first published paper with the results of her MSc thesis.

The paper is "Multi-beam RF aperture using multiplierless FFT approximation" co-authored with Dr R J Cintra, Dr F M Bayer, Mr. A. Sengupta, Mr S Kulasekera, and Dr A Madanayke, published in TOP journal Electronics Letters.

A pre-print is also available in arXiv here.

Congratulations to Dora and all co-authors!

Biomedical Image Processing Paper Accepted

Our manuscript "Fast Computation of Residual Complexity Image Similarity Metric Using Low-complexity Transforms" authored by Dr Y. Pauchard, Dr R. J. Cintra, Dr A. Madanayake, and Dr F. M. Bayer was accepted for publication in IET Image Processing.

To the best of our knowledge, this paper is the first to combine approximate discrete transforms and biomedical image processing.

Congratulations to all authors!

Wednesday, January 7, 2015

Accepted paper: Discrete Tchebichef Transform

The manuscript describing the first meaningful approximation for the discrete Tchebichef transform was accepted for publication in IEEE Signal Processing Letters.

This paper is a result group member Paulo Oliveira's work and it is an important accomplishment for this line of research.

The paper is available at IEEE Xplorer here and a pre-print is archived in arXiv here.

Congratulations to all authors: Paulo Oliveira, Dr Renato J Cintra, Dr Fábio M Bayer, Sunera Kulasekera, and Dr A Madanayake!