Identification of Dominant Coefficients in DCT Image Coders using Weighted Vector Quantization. - Luciano Vereda Oliveira; Abraham Alcaim (ICIP (1), 1994)

On the use of simulated annealing for error protection of CELP coders employing LSF vector quantizers. - Sonia L. Q. Dall'Agnol; José Roberto Boisson de Marca; Abraham Alcaim (VTC, 1994)

Performance of LSF vector quantizers for VSELP coders in noisy channels. - Sonia L. Q. Dall'Agnol; Abraham Alcaim; José Roberto Boisson de Marca (Eur. Trans. Telecommun., 1994)

Backward adaptive lattice and transversal predictors in low-delay CELP coders. - Sergio Ricardo M. F. Aguiar; Abraham Alcaim (Signal Process., 1994)

A modified CELP model with computationally efficient adaptive codebook search. - Lúcio Martins da Silva; Abraham Alcaim (IEEE Signal Process. Lett., 1995)

Edge-preserving ADPCM and ECVQ coding of image sub-bands using subjective criteria. - Marcelo Mollica Jourdan; Abraham Alcaim (ICIP (3), 1996)

CELP with priority to critical segments. - Lúcio Martins da Silva; Abraham Alcaim (EUSIPCO, 1998)

Differential coding of speech LSF parameters using hybrid vector quantization and bidirectional prediction. - Lúcio Martins da Silva; Abraham Alcaim (IEEE Trans. Speech Audio Process., 2000)

Analysis of LSF switched-predictive vector quantisers. - Rodrigo C. de Lamare; Abraham Alcaim (ISSPA, 2001)

Alignment by phase of vertical coefficients in SA-DCT. - Emilio Carlos Acocella; Abraham Alcaim (IEEE Signal Process. Lett., 2001)

Mathematical formulation of shape-adaptive 2-D transforms. - Emilio Carlos Acocella; Abraham Alcaim (IEEE Signal Process. Lett., 2001)

On the use of PCA in GMM and AR-vector models for text independent speaker verification. - Charles B. de Lima; Abraham Alcaim; José Antonio Apolinário (DSP, 2002)

AR-vector using CMS for robust text independent speaker verification. - Charles B. de Lima; Dirceu G. da Silva; Abraham Alcaim; José Antonio Apolinário (DSP, 2002)

Effects of adaptive postfilters on the LSF quantisation for low bit rate speech coders in tandem connections. - Rodrigo C. de Lamare; Abraham Alcaim (ISSPA (1), 2003)

Subband decomposition strategies for object-based image coding. - Marcio Albuquerque de Souza; Emilio Carlos Acocella; Abraham Alcaim (Int. J. Imaging Syst. Technol., 2003)

A New Classifier for Speaker Verification Based on the Fractional Brownian Motion Process. - Ricardo Sant Ana; Rosangela Coelho; Abraham Alcaim (TSD, 2004)

Theoretical analysis and reduction of the quantization noise effects in the SA-DCT. - Emilio Carlos Acocella; Abraham Alcaim (Int. J. Imaging Syst. Technol., 2004)

Transformations of LPC and LSF Parameters to Speech Recognition Features. - Vladimir Fabregas Surigué de Alencar; Abraham Alcaim (ICAPR (1), 2005)

On the Performance of Hurst-Vectors for Speaker Identification Systems. - Ricardo Sant Ana; Rosangela Coelho; Abraham Alcaim (ICAPR (1), 2005)

A Real-Time and Parametric Parallel Video Compression Architecture Using FPGA. - Cássio Alves Carneiro; Francisco M. P. Garcia; Flávia M. Freitas; Zélia M. A. Peixoto; Amanda R. M. Diniz; Abraham Alcaim (ISPA Workshops, 2006)

Text-independent speaker recognition based on the Hurst parameter and the multidimensional fractional Brownian motion model. - R. Sant'Ana; Rosangela Coelho; Abraham Alcaim (IEEE Trans. Speech Audio Process., 2006)

Features interpolation domain for distributed speech recognition and performance for ITU-t g.723.1 CODEC. - Vladimir Fabregas Surigué de Alencar; Abraham Alcaim (INTERSPEECH, 2007)

LSF and LPC - derived features for Large Vocabulary Distributed Continuous Speech Recognition in Brazilian Portuguese. - Vladimir Fabregas Surigué de Alencar; Abraham Alcaim (ACSCC, 2008)

Switching between the SA-DCT and the EI-DCT in arbitrarily shaped image coding. - Flávia M. Freitas; Abraham Alcaim (Int. J. Imaging Syst. Technol., 2008)

Robust access based on speaker identification for optical communications security. - Leonardo Zão; Abraham Alcaim; Rosângela Coelho (DPS, 2009)

Speech enhancement and features compensation algorithms for continuous speech recognition. - Christian Arcos; Marco Grivet; Abraham Alcaim (ChinaSIP, 2014)

Median filtering the temporal probability distribution in histogram mapping for robust continuous speech recognition. - Christian Arcos Gordillo; José Roberto Boisson de Marca; Abraham Alcaim (EUSIPCO, 2016)

Ideal neighbourhood mask for speech enhancement using deep neural networks. - Christian Arcos; Marley M. B. R. Vellasco; Abraham Alcaim (IJCNN, 2019)