Search Results - "Fernando Perdigão"

PureMIC: A New Audio Dataset for the Classification of Musical Instruments based on Convolutional Neural Networks by Castel-Branco, Gonçalo, Falcao, Gabriel, Perdigão, Fernando

“…Automatic classification of musical instruments from audio relies heavily on datasets of acoustic recordings of the instruments to train models of those…”
Get full text

In-Vivo Automatic Nuclear Cataract Detection and Classification in an Animal Model by Ultrasounds by Caixinha, Miguel, Amaro, Joao, Santos, Mario, Perdigao, Fernando, Gomes, Marco, Santos, Jaime

“…Objective: To early detect nuclear cataract in vivo and automatically classify its severity degree, based on the ultrasound technique, using machine learning…”
Get full text

A-scan ultrasound in ophthalmology: A simulation tool by Petrella, Lorena, Perdigão, Fernando, Caixinha, Miguel, Santos, Mário, Lopes, Maria, Gomes, Marco, Santos, Jaime

“…•The developed tool allows simulating ophthalmological applications of A-scan ultrasounds.•The tool allows evaluating diverse error sources associated to…”
Get full text

Automatic evaluation of reading aloud performance in children by Proença, Jorge, Lopes, Carla, Tjalve, Michael, Stolcke, Andreas, Candeias, Sara, Perdigão, Fernando

“…Evaluating children's reading aloud proficiency is typically a task done by teachers on an individual basis, where reading time and wrong words are marked…”
Get full text

Safety Assessment of an A‐Scan Ultrasonic System for Ophthalmic Use by Petrella, Lorena, Fernandes, Paulo, Santos, Mário, Caixinha, Miguel, Nunes, Sandrina, Pinto, Carlos, Morgado, Miguel, Santos, Jaime, Perdigão, Fernando, Gomes, Marco

“…Objectives This study describes the safety assessment of an A‐scan ultrasonic system for ophthalmic use. The system is an investigational medical device for…”
Get full text

Broad phonetic class definition driven by phone confusions by Lopes, Carla, Perdigão, Fernando

“…Intermediate representations between the speech signal and phones may be used to improve discrimination among phones that are often confused. These…”
Get full text

Feasibility assessment of the Eye Scan Ultrasound System for cataract characterization and optimal phacoemulsification energy estimation: protocol for a pilot, nonblinded and monocentre study by Petrella, Lorena, Nunes, Sandrina, Perdigão, Fernando, Gomes, Marco, Santos, Mário, Pinto, Carlos, Morgado, Miguel, Travassos, António, Santos, Jaime, Caixinha, Miguel

“…Abstract Background Cataracts are lens opacifications that are responsible for more than half of blindness cases worldwide, and the only treatment is surgical…”
Get full text

Modelling of an ultrasound-based system for cataract detection and classification by Santos, Mario J., Conceição, Inês M, Petralla, Lorena, Perdigão, Fernando, Santos, Jaime, Caixinha, Miguel, Gomes, Marco, Morgado, Miguel

“…Cataract is a cloudiness in the lens of the eye affecting its transparency. Surgical cataract removal is the only therapeutic approach. Phacoemulsification is…”
Get full text

A-scan ultrasonic system for real time automatic cataract detection by Petrella, Lorena, Pinto, Carlos, Perdigão, Fernando, Gomes, Marco, Santos, Mário, Nunes, Sandrina, Morgado, Miguel, Caixinha, Miguel, Santos, Jaime

“…Cataract is an ocular condition associated to the loss of the normal crystalline lens transparency, and its progression can result in a total loss of vision…”
Get full text

ALBAYZIN Query-by-example Spoken Term Detection 2016 evaluation by Tejedor, Javier, Toledano, Doroteo T., Lopez-Otero, Paula, Docio-Fernandez, Laura, Proença, Jorge, Perdigão, Fernando, García-Granada, Fernando, Sanchis, Emilio, Pompili, Anna, Abad, Alberto

“…Query-by-example Spoken Term Detection (QbE STD) aims to retrieve data from a speech repository given an acoustic (spoken) query containing the term of…”
Get full text

Syllable structure in dysfunctional Portuguese children's speech by Candeias, Sara, Perdigão, Fernando

“…The goal of this work is to investigate whether children with speech dysfunctions (SD) show a deficit in planning some Portuguese syllable structures (PSS) in…”
Get full text

Generalising the simultaneous computation of the DFTs of two real sequences using a single N-point DFT by Silva, Vitor, Perdigão, Fernando

“…A general approach to the problem of simultaneous computation of the discrete Fourier transform (DFT) of two sequences of length N, which may be real,…”
Get full text

Generating a pronunciation dictionary for European Portuguese using a joint-sequence model with embedded stress assignment by Veiga, Arlindo, Candeias, Sara, Perdigão, Fernando

“…This paper addresses the problem of grapheme to phoneme conversion to create a pronunciation dictionary from a vocabulary of the most frequent words in…”
Get full text

Efficient noise-robust speech recognition front-end based on the ETSI standard by Neves, C., Veiga, A., Sa, L., Perdigao, F.

“…A powerful feature extraction system for noise robust speech recognition was standardized by ETSI. The system was developed for distributed speech recognition…”
Get full text

Fatores de usabilidade para aplicativos de aluguel de transportes não motorizados: uma revisão da literatura by Brazão, Kaina Bruno, Perdigão, Fernando da Rocha, Rodrigues, Emanuelle de Oliveira, Andrade, Bruna Raphaela Ferreira de, Ruschival, Claudete Barbosa

“…A deficiência do atendimento de transporte público, aliado ao tempo perdido nos congestionamentos e a busca pela sustentabilidade impulsionam a procura por…”
Get full text

Deep Learning-based Demodulator for Magnitude Modulated Signals by Henriques, Diogo, Gomes, Marco, Silva, Vitor, Perdigao, Fernando

“…The current applications' requirement for higher data rates typically results in an increase in the signal's Peak-to-Average Power Ratio (PAPR), which harms…”
Get full text

Enhancing the Labelling of Audio Samples for Automatic Instrument Classification Based on Neural Networks by Castel-Branco, Goncalo, Falcao, Gabriel, Perdigao, Fernando

“…The polyphonic OpenMIC-2018 dataset is based on weak and incomplete labels. The automatic classification of sound events, based on the VGGish bottleneck layer…”
Get full text

A method for the extraction of phonetically-rich triphone sentences by Mendonca, Gustavo, Candeias, Sara, Perdigao, Fernando, Shulby, Christopher, Toniazzo, Rean, Klautau, Aldebaro, Aluisio, Sandra

“…A method is proposed for compiling a corpus of phonetically-rich triphone sentences; i.e., sentences with a high variety of triphones, distributed in a uniform…”
Get full text

Mispronunciation Detection in Children's Reading of Sentences by Proenca, Jorge, Lopes, Carla, Tjalve, Michael, Stolcke, Andreas, Candeias, Sara, Perdigao, Fernando

“…This paper proposes an approach to automatically parse children's reading of sentences by detecting word pronunciations and extra content, and to classify…”
Get full text

O desafio da participação humana do IT-Coimbra no Págico by Arlindo Veiga, Carla Lopes, Dirce Celorico, Jorge Proença, Fernando Perdigão, Sara Candeias

“…Na qualidade de grupo de investigação em Processamento Computacional da Língua portuguesa, pretendemos, neste documento, relatar a experiência vivenciada na…”
Get full text