Search Results - "Perdigao, Fernando"
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PureMIC: A New Audio Dataset for the Classification of Musical Instruments based on Convolutional Neural Networks
Published in Journal of signal processing systems (01-09-2021)“…Automatic classification of musical instruments from audio relies heavily on datasets of acoustic recordings of the instruments to train models of those…”
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In-Vivo Automatic Nuclear Cataract Detection and Classification in an Animal Model by Ultrasounds
Published in IEEE transactions on biomedical engineering (01-11-2016)“…Objective: To early detect nuclear cataract in vivo and automatically classify its severity degree, based on the ultrasound technique, using machine learning…”
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3
A-scan ultrasound in ophthalmology: A simulation tool
Published in Medical engineering & physics (01-11-2021)“…•The developed tool allows simulating ophthalmological applications of A-scan ultrasounds.•The tool allows evaluating diverse error sources associated to…”
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4
Automatic evaluation of reading aloud performance in children
Published in Speech communication (01-11-2017)“…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…”
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Safety Assessment of an A‐Scan Ultrasonic System for Ophthalmic Use
Published in Journal of ultrasound in medicine (01-11-2020)“…Objectives This study describes the safety assessment of an A‐scan ultrasonic system for ophthalmic use. The system is an investigational medical device for…”
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Broad phonetic class definition driven by phone confusions
Published in EURASIP journal on advances in signal processing (23-07-2012)“…Intermediate representations between the speech signal and phones may be used to improve discrimination among phones that are often confused. These…”
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Feasibility assessment of the Eye Scan Ultrasound System for cataract characterization and optimal phacoemulsification energy estimation: protocol for a pilot, nonblinded and monocentre study
Published in Pilot and feasibility studies (29-09-2022)“…Abstract Background Cataracts are lens opacifications that are responsible for more than half of blindness cases worldwide, and the only treatment is surgical…”
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8
Modelling of an ultrasound-based system for cataract detection and classification
Published in Research and Review Journal of Nondestructive Testing (01-08-2023)“…Cataract is a cloudiness in the lens of the eye affecting its transparency. Surgical cataract removal is the only therapeutic approach. Phacoemulsification is…”
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A-scan ultrasonic system for real time automatic cataract detection
Published in Health and technology (01-07-2020)“…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…”
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10
Deep Learning-based Demodulator for Magnitude Modulated Signals
Published in 2023 IEEE 97th Vehicular Technology Conference (VTC2023-Spring) (01-06-2023)“…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…”
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Conference Proceeding -
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ALBAYZIN Query-by-example Spoken Term Detection 2016 evaluation
Published in EURASIP journal on audio, speech, and music processing (13-04-2018)“…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…”
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Enhancing the Labelling of Audio Samples for Automatic Instrument Classification Based on Neural Networks
Published in ICASSP 2020 - 2020 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (01-05-2020)“…The polyphonic OpenMIC-2018 dataset is based on weak and incomplete labels. The automatic classification of sound events, based on the VGGish bottleneck layer…”
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Conference Proceeding -
13
Syllable structure in dysfunctional Portuguese children's speech
Published in Clinical linguistics & phonetics (01-11-2010)“…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…”
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Journal Article Conference Proceeding -
14
A method for the extraction of phonetically-rich triphone sentences
Published in 2014 International Telecommunications Symposium (ITS) (01-08-2014)“…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…”
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Conference Proceeding -
15
Mispronunciation Detection in Children's Reading of Sentences
Published in IEEE/ACM transactions on audio, speech, and language processing (01-07-2018)“…This paper proposes an approach to automatically parse children's reading of sentences by detecting word pronunciations and extra content, and to classify…”
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Generalising the simultaneous computation of the DFTs of two real sequences using a single N-point DFT
Published in Signal processing (01-03-2002)“…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,…”
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Importance of speaker specific speech features for emotion recognition
Published in 2019 5th Experiment International Conference (exp.at'19) (01-06-2019)“…The recognition of emotions is an inherent ability possessed by humans, which has long intrigued many researchers. Primarily due to the possibility of its…”
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Conference Proceeding -
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Query by example search with segmented dynamic time warping for non-exact spoken queries
Published in 2015 23rd European Signal Processing Conference (EUSIPCO) (01-08-2015)“…This paper presents an approach to the Query-by-Example task of finding spoken queries on speech databases when the intended match may be non-exact or slightly…”
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Conference Proceeding -
19
Generating a pronunciation dictionary for European Portuguese using a joint-sequence model with embedded stress assignment
Published in Journal of the Brazilian Computer Society (01-06-2013)“…This paper addresses the problem of grapheme to phoneme conversion to create a pronunciation dictionary from a vocabulary of the most frequent words in…”
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The challenge of human participation IT-Coimbra on Pagico
Published in Linguamática (Braga, Portugal) (01-01-2012)Get full text
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