Luís B. Almeida

Publication Activity (10 Years)

Years Active: 1981-2018
Publications (10 Years): 4

Top Topics

Image Deconvolution

Convex Formulation

Super Resolution

Top Venues

IEEE Trans. Image Process.

IEEE Trans. Geosci. Remote. Sens.

Publications

Miguel Simões, José M. Bioucas-Dias, Luís B. Almeida
An Extension of Averaged-Operator-Based Algorithms. CoRR (2018)
Miguel Simões, José M. Bioucas-Dias, Luís B. Almeida
An Extension of Averaged-Operator-Based algorithms. EUSIPCO (2018)
Miguel Simões, Luís B. Almeida, José M. Bioucas-Dias, Jocelyn Chanussot
A General Framework for Fast Image Deconvolution with Incomplete Observations. Applications to Unknown Boundaries, Inpainting, Superresolution, and Demosaicing. CoRR (2016)
Miguel Simões, Luís B. Almeida, José M. Bioucas-Dias, Jocelyn Chanussot
A Framework for Fast Image Deconvolution With Incomplete Observations. IEEE Trans. Image Process. 25 (11) (2016)
Miguel Simões, José M. Bioucas-Dias, Luís B. Almeida, Jocelyn Chanussot
A Convex Formulation for Hyperspectral Image Superresolution via Subspace-Based Regularization. IEEE Trans. Geosci. Remote. Sens. 53 (6) (2015)
Laëtitia Loncan, Luís B. Almeida, José M. Bioucas-Dias, Xavier Briottet, Jocelyn Chanussot, Nicolas Dobigeon, Sophie Fabre, Wenzhi Liao, Giorgio A. Licciardi, Miguel Simões, Jean-Yves Tourneret, Miguel Angel Veganzones, Gemine Vivone, Qi Wei, Naoto Yokoya
Hyperspectral pansharpening: a review. CoRR (2015)
Miguel Simões, José M. Bioucas-Dias, Luís B. Almeida, Jocelyn Chanussot
Hyperspectral image superresolution: An edge-preserving convex formulation. CoRR (2014)
Miguel Simões, José M. Bioucas-Dias, Luís B. Almeida, Jocelyn Chanussot
A convex formulation for hyperspectral image superresolution via subspace-based regularization. CoRR (2014)
Miguel Simões, José M. Bioucas-Dias, Luís B. Almeida, Jocelyn Chanussot
Hyperspectral image superresolution: An edge-preserving convex formulation. ICIP (2014)
Mariana S. C. Almeida, Luís B. Almeida
Nonlinear separation of show-through image mixtures using a physical model trained with ICA. Signal Process. 92 (4) (2012)
Mariana S. C. Almeida, Luís B. Almeida
Blind and Semi-Blind Deblurring of Natural Images. IEEE Trans. Image Process. 19 (1) (2010)
Mariana S. C. Almeida, Luís B. Almeida
Blind deblurring of foreground-background images. ICIP (2009)
Mariana S. C. Almeida, Luís B. Almeida
Blind deblurring of natural images. ICASSP (2008)
Mariana S. C. Almeida, Luís B. Almeida
Wavelet-based separation of nonlinear show-through and bleed-through image mixtures. Neurocomputing 72 (1-3) (2008)
Luís B. Almeida
Separating a Real-Life Nonlinear Image Mixture. J. Mach. Learn. Res. 6 (2005)
Luís B. Almeida
Separating a Real-Life Nonlinear Image Mixture CoRR (2005)
Luís B. Almeida, Miguel Faria
Separating a Real-Life Nonlinear Mixture of Images. ICA (2004)
Luís B. Almeida
Linear and nonlinear ICA based on mutual information - the MISEP method. Signal Process. 84 (2) (2004)
Erkki Oja, Stefan Harmeling, Luís B. Almeida
Independent component analysis and beyond. Signal Process. 84 (2) (2004)
Luís B. Almeida
MISEP -- Linear and Nonlinear ICA Based on Mutual Information. J. Mach. Learn. Res. 4 (2003)
Carlos S. Lima, Luís B. Almeida, João L. Monteiro
Continuous environmental adaptation of a speech recogniser in telephone line conditions. INTERSPEECH (2002)
Carlos S. Lima, Luís B. Almeida, João L. Monteiro
Improving the role of unvoiced speech segments by spectral normalisation in robust speech recognition. INTERSPEECH (2002)
Hugo Meinedo, João Paulo Neto, Luís B. Almeida
Syllable onset detection applied to the portuguese language. EUROSPEECH (1999)
Luís B. Almeida, Gonçalo C. Marques
Nonlinear Blind Source Separation by Pattern Repulsion. IWANN (2) (1999)
Ciro Martins, João Paulo Neto, Luís B. Almeida
Using partial morphological analysis in language modeling estimation for large vocabulary portuguese speech recognition. EUROSPEECH (1999)
João Paulo Neto, Ciro Martins, Luís B. Almeida
A large vocabulary continuous speech recognition hybrid system for the portuguese language. ICSLP (1998)
Luís B. Almeida
Product and Convolution Theorems for the Fractional Fourier Transform. IEEE Signal Process. Lett. 4 (1) (1997)
Joao P. Neto, Ciro Martins, Luís B. Almeida
The development of a speaker independent continuous speech recognizer for portuguese. EUROSPEECH (1997)
Joaquim E. Neves, Mário Jorge Leitão, Luís B. Almeida
Adaptive technique for ATM call admission and routing control using traffic prediction by neural networks. ISCC (1997)
João Paulo Neto, Ciro Martins, Hugo Meinedo, Luís B. Almeida
The design of a large vocabulary speech corpus for portuguese. EUROSPEECH (1997)
Armando J. Pinho, Luís B. Almeida
Contextual Edge Detection Using a Recurrent Neural Network. ICIAP (2) (1997)
Joao P. Neto, Ciro Martins, Luís B. Almeida
An incremental speaker-adaptation technique for hybrid HMM-MLP recognizer. ICSLP (1996)
Luís Nunes, Luís B. Almeida, Thibault Langlois
Interpolation networks. ICNN (1996)
Gonçalo C. Marques, Luís B. Almeida
An Objective Function for Independence. ICNN (1996)
Armando J. Pinho, Luís B. Almeida
On the partition of binary edge maps as a first step for quantitative quality evaluation. ICIP (3) (1996)
João Paulo Neto, Ciro Martins, Luís B. Almeida
Speaker-adaptation in a hybrid HMM-MLP recognizer. ICASSP (1996)
Armando J. Pinho, Luís B. Almeida
Figures of merit for quality assessment of binary edge maps. ICIP (3) (1996)
Joaquim E. Neves, Mário Jorge Leitão, Luís B. Almeida
Neural networks in B-ISDN flow control: ATM traffic prediction or network modeling? IEEE Commun. Mag. 33 (10) (1995)
Armando J. Pinho, Luís B. Almeida
Edge Detection Filters Based on Artificial Neural Networks. ICIAP (1995)
João Paulo Neto, Luís B. Almeida, Mike Hochberg, Ciro Martins, Luís Nunes, Steve Renals, Tony Robinson
Speaker-adaptation for hybrid HMM-ANN continuous speech recognition system. EUROSPEECH (1995)
Luís B. Almeida
The fractional Fourier transform and time-frequency representations. IEEE Trans. Signal Process. 42 (11) (1994)
Armando J. Pinho, Luís B. Almeida
Some Results on Edge Enhancement with Neural Networks. ICIP (3) (1994)
Tony Robinson, Luís B. Almeida, Jean-Marc Boite, Hervé Bourlard, Frank Fallside, Mike Hochberg, Dan J. Kershaw, Phil Kohn, Yochai Konig, Nelson Morgan, João Paulo Neto, Steve Renals, Marco Saerens, Chuck Wooters
A neural network based, speaker independent, large vocabulary, continuous speech recognition system: the WERNICKE project. EUROSPEECH (1993)
Luís B. Almeida
An introduction to the angular Fourier transform. ICASSP (3) (1993)
Jorge S. Marques, Luís B. Almeida
A fast algorithm for generating sinusoids with polynomial phase. ICASSP (1991)
Isabel Trancoso, C. Ribeiro, Luís B. Almeida, L. Oliveira, Jorge S. Marques
CELP: a candidate for GSM half-rate coding. ICASSP (1990)
Fernando M. Silva, Luís B. Almeida
Acceleration Techniques for the Backpropagation Algorithm. EURASIP Workshop (1990)
Jorge S. Marques, Isabel Trancoso, José M. Tribolet, Luís B. Almeida
Improved pitch prediction with fractional delays in CELP coding. ICASSP (1990)
Jorge S. Marques, Luís B. Almeida, José M. Tribolet
Harmonic coding at 4.8 kb/s. ICASSP (1990)
Fernando M. Silva, Luís B. Almeida
Speech separation by means of stationary least-squares harmonic estimation. ICASSP (1990)
Jorge S. Marques, Luís B. Almeida
Sinusoidal modeling of voiced and unvoiced speech. EUROSPEECH (1989)
Jorge S. Marques, Luís B. Almeida
Frequency-varying sinusoidal modeling of speech. IEEE Trans. Acoust. Speech Signal Process. 37 (5) (1989)
Jorge S. Marques, José M. Tribolet, Isabel Trancoso, Luís B. Almeida
Pitch prediction with fractional delays in CELP coding. EUROSPEECH (1989)
Luís B. Almeida, João Paulo Neto
Recurrent Backpropagation and Hopfield Networks. NATO Neurocomputing (1989)
Isabel Trancoso, Luís B. Almeida, Joaquim S. Rodrigues, Jorge S. Marques, José M. Tribolet
Harmonic coding - state of the art and future trends. Speech Commun. 7 (2) (1988)
Isabel Trancoso, Joaquim S. Rodrigues, Luís B. Almeida, Jorge S. Marques, António Joaquim Serralheiro, Diana Santos, José M. Tribolet
Quantization issues in harmonic coders [speech coding]. ICASSP (1988)
António Joaquim Serralheiro, Luís B. Almeida
A probabilistic state machine for speech recognition. ECST (1987)
Jorge S. Marques, Luís B. Almeida
A background for sinusoid based representation of voiced speech. ICASSP (1986)
Isabel Trancoso, Luís B. Almeida, José M. Tribolet
A study on the relationships between stochastic and harmonic coding. ICASSP (1986)
Isabel Trancoso, Luís B. Almeida, José M. Tribolet
Pole-zero multipulse speech representation using harmonic modelling in the frequency domain. ICASSP (1985)
Luís B. Almeida, Fernando M. Silva
Variable-frequency synthesis: An improved harmonic coding scheme. ICASSP (1984)
Luís B. Almeida, José M. Tribolet
Harmonic Coding: An Introduction. ICC (3) (1984)
Luís B. Almeida, José M. Tribolet
Harmonic coding: A low bit-rate, good-quality speech coding technique. ICASSP (1982)
Luís B. Almeida, José M. Tribolet
A spectral model for nonstationary voiced speech. ICASSP (1982)
Luís B. Almeida, José M. Tribolet
A model for short-time phase prediction of speech. ICASSP (1981)