
José Manuel MenéndezUniversidad Politécnica de Madrid | UPM · Departamento de Señales, Sistemas y Radiocomunicaciones
José Manuel Menéndez
Full Professor in Telecommunication Engineering
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177
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Publications (177)
The Shaimdrone project puts a methodology forward for the semi-automatic analysis, evaluation and management of massive geometric data – 3D point cloud (3DPC) models–collected from rock slopes using drones. This project is applicable to many disciplines derived from geotechnical engineering, such as risk indices, geomechanical analysis, movement mo...
Characterizing rock mass discontinuities is a crucial aspect of rock engineering. Current automatic methods for discontinuity identification from 3D point clouds generally do not provide mathematical descriptions of individual ‘joints’. To overcome this limitation, this article proposes a three-stage approach with the following steps: (i) identific...
Objectives
The core objectives of this study centre on enhancing the quality of life and well-being of individuals diagnosed with Parkinson’s and Alzheimer’s diseases. Our aim is to facilitate the monitoring of patient information, benefiting both caregivers and healthcare professionals.
Methods
As part of the PROCare4Life platform sensorial ecosy...
No-Reference video quality assessment has become a trending and challenging hot topic in estimating perceived quality in audiovisual content. In this paper, we present a proposal to considerably reduce the computational cost of video processing without losing accuracy in QoE estimation. Tests have been performed using the Video-MOS SaaS solution, a...
In this paper, a study is performed in order to achieve a process that successfully respects the colour integrity of photogrammetry models of cultural heritage pieces. As a crucial characteristic of cultural heritage documentation, the colour of the pieces—as a valuable source of information—needs to be properly handled and preserved, since digital...
Contribución al debate sobre TIC en red abiertas a la ciudadanía: ¿un recurso creciente para el conocimiento, la investigación y la tutela del patrimonio cultural? El texto presenta el proyecto MIPAC-CM cuyo objetivo es desarrollar un sistema basado en el uso de TIC y de ciencia ciudadana para la monitorización del ambiente, que sea aplicable de ma...
Currently, although there are several developments that allow digital inclusion and accessibility of people with hearing or visual impairments to audio and video content through TV or any audiovisual streaming platform. These developments have not been sufficient and have not had the distribution and implementation that they should have. For exampl...
Cultural heritage pieces are prone to degradation inducted by ambient conditions. When happening, it is necessary to launch a maintenance process, which may be costly in terms of human means and/or money. In this paper we present the outline of a mean of practicing preventive conservation by monitoring the possible degradation by taking crowdsource...
Monitoring environmental factors such as pollutants, relative humidity, light, etc. is needed to ensure a proper preventive conservation of cultural heritage. Since existing systems are expensive and difficult to maintain, we propose as a sustainable alternative the use crowdsourced photographs taken by visitors using their cell phones. These image...
Colour changes of cultural heritage objects can be related with degradation of materials, thus a proper colour monitoring system can be used to detect conservation problems. With this purpose, a monitoring methodology for cultural heritage preventive conservation based on tailored colour reference charts and image analysis is proposed.
Reference co...
Immersive video is changing the way we enjoy TV. It is no longer just about receiving sequential images with audio, but also playing with other human senses through smells, vibrations of movement, 3D audio, feeling water, wind, heat, and other emotions that can be experienced through all human senses. This work aims to validate the usefulness of an...
In this paper we present a colour calibration framework for cultural heritage preventive conservation. It includes a custom colour chart based on a regular sRGB division and a multi-dimensional calibration approach based on hyper-surfaces that map the original colours to the calibrated space taking information from all the channels. As shown, our w...
Meristem cells are irregularly shaped and appear in confocal images as dark areas surrounded by bright ones. Images are characterized by regions of very low contrast and absolute loss of edges deeper into the meristem. Edges are blurred, discontinuous, sometimes indistinguishable, and the intensity level inside the cells is similar to the backgroun...
In this paper, an adaptive image calibration technique suitable for cultural heritage surveillance in controlled environments is proposed. Heritage pieces, as objects important to conserve, are prone to degradation and thus in the need of a constant watch in order to assess the moment where maintenance is required, preferably in a non-invasive way....
This chapter analyzes and discusses to what extent machine vision is applicable and can benefit Internet of Things (IoT), wherein computing capability is extended to a variety of objects, devices, and sensors. It presents the fundamentals of machine vision and then proceeds to look at current trends in machine vision research and development. The c...
Mobile apps analytics represent a core set in the mobile industry to extract relevant data with the aim of modeling user's behavior. Current solutions to detect in-app user's activity are usually based on a continuous app code modification schema, which implies high development efforts and a clear problem to implement changes without compromising t...
Conventional tests with written information used for the evaluation of sign language (SL) comprehension introduce distortions due to the translation process. This fact affects the results and conclusions drawn and, for that reason, it is necessary to design and implement the same language interpreter-independent evaluation tools. Novel web technolo...
In recent years, the use of unmanned aerial vehicles (UAVs) for surveillance tasks has increased considerably. This technology provides a versatile and innovative approach to the field. However, the automation of tasks such as object recognition or change detection usually requires image processing techniques. In this paper we present a system for...
The introduction of new techniques to improve the robustness and accuracy of vehicle detection is always important for the intelligent transportation system as it may face different problems and challenges. Conventional image-based vehicle detection methods have presented difficulties in acquiring good images due to perspective and background noise...
Latest advances of deep learning paradigm and 3D imaging systems have raised the necessity for more complete datasets that allow exploitation of facial features such as pose, gender or age. In our work, we propose a new facial dataset collected with an innovative RGB–D multi-camera setup whose optimization is presented and validated. 3DWF includes...
Background
In this paper we present a model of parameters to aesthetically characterize films using a multi-disciplinary approach: by combining film theory, visual low-level video descriptors (modeled in order to supply aesthetic information) and classification techniques using machine and deep learning.
Methods
Four different tests have been deve...
Dataset of audio, image and descriptors for movie trailers.
(CSV)
Appendix.
Automatic Descriptors Extraction.
(DOCX)
Movies features dataset used in the experiments.
(CSV)
[This corrects the article DOI: 10.1371/journal.pone.0189145.].
Intelligent Transportation Systems (ITS) allow us to have high quality traffic information to reduce the risk of potentially critical situations. Conventional image-based traffic detection methods have difficulties acquiring good images due to perspective and background noise, poor lighting and weather conditions. In this paper, we propose a new me...
Command and control centres face the challenge of quickly obtaining accurate information about emergencies they should response to. Conversely, crowdsourcing information and mobile technologies offer great potential for better engaging eyewitnesses in emergency and crisis management processes. This paper describes the vision and the realisation of...
Connected TV allows the users to combine the spirit of consuming conventional television in big screens with the advantages of internet through different applications and services. Previous HbbTV specifications 1.0 and 1.5 presented a series of limitations, which the new version HbbTV 2.0.1 is trying to cover. Among these novelties, the terminal co...
With the growth of Internet traffic and the deployment of 5G networks, the evaluation of technology for video streaming over the Internet needs to be assessed. Users demand more efficient algorithms that taking into account the state of the network assure the requirements in terms of quality and allow them to enjoy the contents, which have graduall...
Internet traffic is growing by an average of 40% a year and video streaming stands for 50% of the traffic. The expansion of new applications and services for video distribution makes users demand video quality and faster loads for contents with higher resolutions. For that reason, it is necessary to improve detection systems with check the received...
We describe how two different techniques: ultrasonic and ultrawide-band radio frequency inspections, can be used and combined to detect embedded structures in concrete. Joint analysis shall overcome limitations of the individual technologies, while providing further information on specimens. In this case, ultrasonic inspection achieves good spatial...
Traffic surveillance systems are interesting to many researchers to improve the traffic control and reduce the risk caused by accidents. In this area, many published works are only concerned about vehicle detection in normal conditions. The camera may vibrate due to wind or bridge movement. Detection and tracking of vehicles are a very difficult ta...
Phytoplankton such as diatoms or desmids are useful for monitoring water quality. Manual image analysis is impractical due to the huge diversity of this group of microalgae and its great morphological plasticity, hence the importance of automating the analysis procedure. Highresolution images of phytoplankton cells can now be acquired by digital mi...
Analyzing a user's first impression of a Web site is essential for interface designers, as it is tightly related to their overall opinion of a site. In fact, this early evaluation affects user navigation behavior. Perceived usability and user interest (e.g., revisiting and recommending the site) are parameters influenced by first opinions. Thus, pr...
The development of Intelligent Transportation Systems (ITS) needs high quality traffic
information such as intersections, but conventional image-based traffic detection methods
have difficulties with perspective and background noise, shadows and lighting transitions. In
this paper, we propose a new traffic information detection method based on Modi...
Urban mobility is an increasingly complex challenge for the cities, and involves many different aspects. An aspect central to the problem is the management of mobility data in the cities. The traditional approach has resulted in data silos implemented and mostly valid only for the city for which they were developed.
The OPTICITIES project aims at p...
Measuring customer reaction to new products for understanding their level of engagement is necessary for the future of retail. This work introduces a workflow to improve the quality and efficiency of the retail establishments in order to increase their attractiveness. Different research fields are explored to fulfill the requirements of the propose...
This paper presents a computer vision system whose
aim is to detect and classify cracks on road surfaces. Most of the
previous works consisted of complex and expensive acquisition
systems, whereas we have developed a simpler one composed
by a single camera mounted on a light truck and no additional
illumination. The system also includes tracking de...
A method for estimating the dimensions of non-delimited free parking areas by using a static surveillance camera is proposed. The proposed method is specially designed to tackle the main challenges of urban scenarios (multiple moving objects, outdoor illumination conditions and occlusions between vehicles) with no training. The core of this work is...
Preparation of official examinations and oppositions is a difficult task in which new technologies related to mobile Web 2.0 play an important role, because they can improve the learning methodology. A collaborative platform based on a smartphone application was developed for helping students to prepare an official examination which, in this concre...
Syntax analysis in Spanish language is necessary for university entrance examination. Secondary students should control this subject, which is difficult to teach with conventional educational tools. This paper describes a mobile devices application for defining linguistic structure above the word level, i.e. syntax analysis. The application was des...
This paper presents an overview of the European project HBB4ALL. It explains: how access services can be provided by means of HbbTV applications, why connected TV features become useful for this purpose, and how to get fully satisfying access services for the citizens.
This paper explains the work that the HBB4ALL project is carrying out to deploy signing services based on HbbTV (Hybrid Broadcast Broadband TV). HbbTV is an open standard specification for the new Connected TV technology, enabling interoperability of broadcast and broadband contents on the TV set. HBB4ALL proposes to take advantage of this broadcas...
This paper establishes a real-time auto-exposure method to guarantee that surveillance cameras in uncontrolled light conditions take advantage of their whole dynamic range while provide neither under nor overexposed images. State-of-the-art auto-exposure methods base their control on the brightness of the image measured in a limited region where th...
Disparity may cause visual discomfort. Pairs of video sequences with different levels of parallax, both negative and positive, were presented together to the observers. The observers evaluated the cases in which visual discomfort occurred after visualizing the transition on each pair.
One of the most ambitious objectives for the Computer Vision research community is to achieve for machines similar capacities to the human’s visual and cognitive system, and thus provide a trustworthy description of what is happening in the scene under surveillance. Most of hierarchic and intelligent video-based understanding frameworks proposed so...
Assessing video quality is a complex task. While most pixel-based metrics do not present enough correlation between objective and subjective results, algorithms need to correspond to human perception when analyzing quality in a video sequence. For analyzing the perceived quality derived from concrete video artifacts in determined region of interest...
Resumen: VARIM 2.0 es un nuevo sistema de adquisición de imágenes y formación de mosai-cos, para el estudio de obras de arte en el rango del infrarrojo cercano (desde 900 a 1700 nm) desarrollado para incorporar las técnicas denominadas Imagen Multiespectral (MSI) e Imagen Hiperespectral (HSI). Al tratarse de una técnica no invasiva resulta especial...
Many image processing methods, such as techniques for people re-identification, assume photometric constancy between different images. This study addresses the correction of photometric variations based upon changes in background areas to correct foreground areas. The authors assume a multiple light source model where all light sources can have dif...
Multi-Camera Dynamic Light (MCDL) dataset.
Please refer to the following paper when using this dataset:
J. Torres, K. Schutte, H. Bouma, J.M. Menendez,
"Linear colour correction for multiple illumination changes and non-overlapping cameras",
IET Image processing, (2014).
With the continuous development in the fields of sensors, advanced data processing and communications, road transport oriented intelligent applications and services have reached a significant maturity and complexity. Cooperative ITS services, based on the idea of sharing accurate information among road entities, are currently being tested on a larg...
In this paper, we propose techniques to assess the objective quality for stereoscopic 3D video content, related to motion and depth map features. An analysis has been carried out in order to understand what causes the generation of visual discomfort in the viewer's eye when visualizing a 3D video. Motion is an important feature affecting 3D experie...
Difficulty faced by drivers in finding a parking space in either car parks or in the street is one of the common problems shared by all the big cities, most of the times leading to traffic congestion and driver frustration. Exploiting the capabilities that Computer Vision offers, an alternative to those ITS commercial solutions for parking space de...
The recent continuous development of Cooperative ITS has resulted in several initiatives which focus on different parts of the Cooperative environment landscape. The FOTsis project focuses on the infrastructure side of the Cooperative environment and will deploy and test 7 services designed to maximise the benefits of the integration of the road op...
Multiplicity of devices used for the reproduction of video is increasing nowadays. The characteristics of the displayable video are specific for each type of device. In order to avoid using separate source streams for the different devices and use optimal delivery bit rate, it is desirable that the encoded and transmitted original is identical for...
Innovative advanced systems have been proposed for improving the safety and efficiency in the mobility of road users in Europe. Particularly for road transport, new ITS-based Cooperative Services for preventing accidents in critical points and situations are emerging where road users, vehicles and a sensorised integrative infrastructure are the mai...
Augmented reality (AR) commonly uses markers for detection and tracking. Such multimedia applications associate each marker with a virtual 3D model stored in the memory of the camera-equipped device running the application. Application users are limited in their interactions, which require knowing how to design and program 3D objects. This generall...
In this paper, we propose two algorithms to assess quality in video sequences when no reference is available. The algorithms are the result of measuring artifacts such as blurring or tiling to the decoded image; firstly tested in MPEG-2 compression standard, and subsequently, analyzing the passage from this standard to its evolution H.264, taking i...
This paper describes a recommender system for sport videos, transmitted over the Internet and/or broadcast, in the context of large-scale events, which has been tested for the Olympic Games. The recommender is based on audiovisual consumption and does not depend on the number of users, running only on the client side. This avoids the concurrence, c...
One of the advantages of social networks is the possibility to socialize and personalize the content created or shared by the users. In mobile social networks, where the devices have limited capabilities in terms of screen size and computing power, Multimedia Recommender Systems help to present the most relevant content to the users, depending on t...
Assessing the Quality of Experience (QoE) for multimedia services transmitted over a network has become a major issue for telecom providers (Telcos), because it can determine the real user satisfaction regarding the service they hire. For this reason, we present the metrics based on the Reduced Reference (RR) methodology called Quality Index Based...
A new image acquisition and mosaicing system (VARIM 2.0) for studying artworks in the near-infrared range has been developed to incorporate multispectral and hyperspectral imaging. The spectral window used ranges from 1000 nm to 1700 nm. Different pigments used in old master paintings, as well as modern ones, have been tested. Other materials relat...
Complying with security certifications in most harsh industrial areas is
usually very expensive and sometimes hinders the industrialization of
new technologies. Thus, we observe in the modern industry an increasing
need for visual inspection and closed monitoring systems, either manual
(direct and permanent observation of a supervisor) or automatic...
Based on the European digital television framework, DVB (Digital Video Broadcasting), this paper reviews different ways to integrate speech synthesis tools in digital television receivers and shows a system capable of extracting textual information from the broadcast multiplex, generating synthesized audio content in a computer and playing it back...
In this paper, a novel hyperspectral image acquisition system able to obtain a set of narrowband images (~2,25 nm of bandwidth) and the related composition of monochrome images in the near-infrared is described. The aim of this system is to discriminate the materials by their optical spectral response in the range of 900-1700 nm. This system has be...