
Pablo Revuelta SanzUniversity Carlos III de Madrid | UC3M · CESyA
Pablo Revuelta Sanz
PhD
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38
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Publications (38)
In this paper, a parallel computing method is proposed to perform the background denoising and wheezing detection from a multi-channel recording captured during the auscultation process. The proposed system is based on a non-negative matrix factorization (NMF) approach and a detection strategy. Moreover, the initialization of the proposed model is...
The accurate estimation of respiratory rate (RR) is crucial for assessing the respiratory system’s health in humans, particularly during auscultation processes. Despite the numerous automated RR estimation approaches proposed in the literature, challenges persist in accurately estimating RR in noisy environments, typical of real-life situations. Th...
Movies have the ability to trigger our emotions and affect us in powerful ways. But the impact is not the same among all the audience and, according to our results, also not between women and men. In this study, we used an electroencephalogram (EEG) to register the brain activity of a group of 30 students while they watched a violent scene. The res...
Recent psychology and neuroscience studies have used tactile stimuli in patients, concluding after their experiments that touch is a sense tightly linked to emotions. In parallel, a new way of seeing films, 4D cinema, has added new stimuli to the traditional audiovisual via, including the tactile vibration. In this work, we have studied the brain a...
The accurate estimation of respiratory rate (RR) is crucial for assessing the respiratory system's health in humans, particularly during auscultation processes. Despite numerous automated RR estimation approaches proposed in the literature, challenges persist in accurately estimating RR in noisy environments, typical of real-life situations. This b...
Auscultation primarily relies upon the acoustic expertise of individual doctors in identifying, through the use of a stethoscope, the presence of abnormal sounds such as crackles because the recognition of these sound patterns has critical importance in the context of early detection and diagnosis of respiratory pathologies. In this paper, we propo...
The ability of music to induce emotions has been arousing a lot of interest in recent years, especially due to the boom in music streaming platforms and the use of automatic music recommenders. Music Emotion Recognition approaches are based on combining multiple audio features extracted from digital audio samples and different machine learning tech...
Audiovisual media are an essential source of information and leisure in our lives, but people with hearing disabilities lose the emotional content that is intended to be transmitted through this channel. Some previous studies have tried to find alternative ways to elicit these emotions using other sensory channels, and some attempts have been made...
In this paper, a parallel computing method is proposed to perform the background denoising and wheezing detection from a multi-channel recording captured during the auscultation process. The proposed system is based on a non-negative matrix factorization (NMF) approach and a detection strategy. Moreover, the initialization of the proposed model is...
In this paper, a noninvasive portable prototype is presented for biomedical audio signal processing. The proposed prototype is suitable for monitoring the health of patients. The proposed hardware setup consists of a cost-effective microphone, multipurpose microcontroller and computing node that could be a mobile phone or general-purpose computer....
The study of the emotional processing in the brain began from a psychological point of view in the last decades of the 19th century. However, since the discovery of the electrical background of mental activity around 1930, a new scientific way of observing and measuring the functioning of the living brain has opened up. In addition, Functional Magn...
Captioning is the process of transcribing speech and acoustical information into text to help deaf and hard of hearing people accessing to the auditory track of audiovisual media. In addition to the verbal transcription, it includes information such as sound effects, speaker identification, or music tagging. However, it just takes into account a li...
Standard captioning for the deaf and hard of hearing people cannot transmit the emotional information that music provides in support of the narrative in audio-visual media. We explore an alternative method using vibrotactile stimulation as a possible channel to transmit the emotional information contained in an audio-visual soundtrack and, thus, el...
Orientation and mobility are two fields of applications of the so-called Assistive Products, in which we can find a high growth in the last ten years. In this group, the so-called Electronic Travel Aids have a capital importance. These applications are focused on helping blind people in the following aspects of their daily lives, among others: avoi...
Education is a fundamental human right, however unfortunately not everybody has the same learning opportunities. For instance, if a student has hearing impairments, s/he could face communications barriers in the classroom, which could affect his/her learning process. APEINTA is a Spanish educational project that aims for inclusive education for all...
In this study we present the results of evaluating the sonification protocol of a new assistive product aiming to help the visually impaired in perceiving their surroundings through sounds organized in different cognitive profiles. The evaluation was carried out with 17 sighted and 11 visually impaired participants. The experiment was designed over...
This paper presents a survey of existing sonification systems used to represent visual scenes, analyzes their characteristics and proposes a taxonomy of this set of algorithms and devices. This classification is non-exclusive, since many parameters of any sonification procedure work as independent variables and can be recombined in any other set. A...
In this study we present the results of evaluating the sonification protocol of a new assistive product aiming to help the visually impaired move more safely with the help of sounds organized in different cognitive profiles. The evaluation was carried out with 17 sighted and 11 visually impaired participants. The experiment was designed over both v...
Revuelta Sanz, P. et al. (2013): “ATAD: Una Ayuda Técnica para la Autonomía en el Desplazamiento”. Revista Española de Discapacidad, I (2): 143-154.
Depth map extraction or estimation is very important for many computer vision applications. However, this process involves high cost. Hence, it is interesting to find new approaches, which could yield faster implementations, when very accurate results are not necessary.
These new implementations can be built up for the stereovision problem, taking...
Orientation and mobility are two fields of applications of the so-called Assistive Products, in which we can find a high growth in the last ten years. In this group, the so-called Electronic Travel Aids have a capital importance. These applications are focused on helping blind people in the following aspects of their daily lives, among others: avoi...
This chapter introduces the potential of Automatic Speech Recognition Technology (ASR) in the challenge of inclusive education. ASR technology combined with Information and Communication Technology (ICT) enhances the learning of disabled people both in and outside the classroom. In the classroom, deaf and hearing-impaired students can benefit from...
Stereo vision is the normal method to obtain the depth information from images. The problems encountered when applying well established algorithms to real time applications are due to the high computational load required. In this article, the authors address this issue by performing a region-based analysis which considers each pixel only once. Addi...
This paper presents the web-based educational services included in the APEINTA project. The main aim of APEINTA is to avoid barriers among the students and the education. Taking into account the advantage of cloud computing paradigm, the next web-based services are proposed: First, a captioning service, so students with hearing disabilities, for in...
Stereo vision is one of the most important passive methods to extract depth maps. Among them, there are several approaches with advantages and disadvantages. Computational load is especially important in both the block matching and graphical cues approaches. In a previous work, we proposed a region growing segmentation solution to the matching proc...
Region labeling is an important task in automatic image processing. It consists of assigning information (labels) to each pixel regarding their position, level, etc. and also information regarding the group to which each pixel belongs. This information is useful for many diverse purposes. There are several approaches within this field to perform th...
This paper presents evaluation results of the user’s satisfaction using the APEINTA project which main aim is to provide accessibility
in education, in and out of the classroom. APEINTA is the Spanish acronym for “Aiming for an Inclusive Education based on
Assistive Technology”. The APEINTA project is focused in two main inclusive proposals: first,...
This chapter introduces the potential of Automatic Speech Recognition Technology (ASR) in the challenge of inclusive education. ASR technology combined with Information and Communication Technology (ICT) enhances the learning of disabled people both in and outside the classroom. In the classroom, deaf and hearing-impaired students can benefit from...
Stereo vision is a usual method to obtain depth information from images. The problems encountered when applying the majority of well established algorithms to provide this information are due to the high computational load required. This occurs in both the block matching and graphical cues (such as edges) matching. In this article we address this i...
APEINTA is a Spanish educational project founded by the Spanish Minister of Education and Sciences that aims for inclusive education for every student of all abilities in and out of the classroom. In this work, the APEINTA project is presented
APEINTA is a Spanish educational project founded by the Spanish Minister of Education and Sciences that aims for inclusive education for every student of all abilities in and out of the classroom. In this work, the APEINTA project is presented
The aim of this project is facilitate the integration of hard of hearing people in education. The system is based on automatic speech recognition (ASR) and in text to speech conversion. A client-server architecture was implemented with wireless communication which can run on three different devices. The system provides two output files with the tra...