Papers
CITEEC is a leader in civil and building engineering research, focusing on innovative solutions for sustainable infrastructure and advanced materials.
Pioneering research for sustainable development
CITEEC carries out pioneering research in civil engineering, materials, sustainability and infrastructure. Thanks to multidisciplinary projects and international collaborations, scientific papers are being published that address key challenges facing the sector. This section presents the main papers and results produced by our research groups.
You can access a wide range of scientific publications, which can be filtered by subject, author, year and more. Use the filters provided to find relevant literature and learn more about each of our contributions to the advancement of knowledge.
2020
Rico-Díaz, Ángel J.; Rabuñal-Dopico, Juan R.; Gestal, Marcos; Mures, Omar A.; Puertas-Agudo, Jerónimo
An application of fish detection based on eye search with artificial vision and artificial neural networks Journal Article
In: Water (Switzerland), vol. 12, no. 11, pp. 1-20, 2020, ISSN: 20734441, (cited By 4).
Abstract | Links | BibTeX | Tags: Accuracy and precision; Disparity map; Feed-forward network; Fish farms; Hough algorithms; Human intervention; Noninvasive methods; Real time, agricultural technology; algorithm; artificial neural network; body size; catchability; computer vision; detection method; digital mapping; precision; stereo image, Feedforward neural networks; Fisheries; Image recording; Noninvasive medical procedures; Stereo image processing; Technology transfer; Vision, Fish
@article{Rico-Díaz20201,
title = {An application of fish detection based on eye search with artificial vision and artificial neural networks},
author = {Ángel J. Rico-Díaz and Juan R. Rabuñal-Dopico and Marcos Gestal and Omar A. Mures and Jerónimo Puertas-Agudo},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85095963830&doi=10.3390%2fw12113013&partnerID=40&md5=5574ba04a0071c55f7fab253aaec24b3},
doi = {10.3390/w12113013},
issn = {20734441},
year = {2020},
date = {2020-01-01},
urldate = {2020-01-01},
journal = {Water (Switzerland)},
volume = {12},
number = {11},
pages = {1-20},
publisher = {MDPI AG},
abstract = {A fish can be detected by means of artificial vision techniques, without human intervention or handling the fish. This work presents an application for detecting moving fish in water by artificial vision based on the detection of a fish′ s eye in the image, using the Hough algorithm and a Feed-Forward network. In addition, this method of detection is combined with stereo image recording, creating a disparity map to estimate the size of the detected fish. The accuracy and precision of this approach has been tested in several assays with living fish. This technique is a non-invasive method working in real-time and it can be carried out with low cost. Furthermore, it could find application in aquariums, fish farm management and to count the number of fish which swim through a fishway. In a fish farm it is important to know how the size of the fish evolves in order to plan the feeding and when to be able to catch fish. Our methodology allows fish to be detected and their size and weight estimated as they move underwater, engaging in natural behavior. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.},
note = {cited By 4},
keywords = {Accuracy and precision; Disparity map; Feed-forward network; Fish farms; Hough algorithms; Human intervention; Noninvasive methods; Real time, agricultural technology; algorithm; artificial neural network; body size; catchability; computer vision; detection method; digital mapping; precision; stereo image, Feedforward neural networks; Fisheries; Image recording; Noninvasive medical procedures; Stereo image processing; Technology transfer; Vision, Fish},
pubstate = {published},
tppubtype = {article}
}
2016
Rodríguez, Álvaro; Rico-Díaz, Ángel J.; Rabuñal-Dopico, Juan R.; Gestal, Marcos
Fish tracking with computer vision techniques: An application to vertical slot fishways Book
IGI Global, 2016, ISBN: 9781522508908; 1522508899; 9781522508892, (cited By 8).
Abstract | Links | BibTeX | Tags: Animal behavior; Biological variables; Camera systems; Computer vision techniques; Current mechanisms; New approaches; Upstream migration; Vertical slot fishways, Computer vision; Fisheries; Fishways, Fish
@book{Rodriguez201674,
title = {Fish tracking with computer vision techniques: An application to vertical slot fishways},
author = {Álvaro Rodríguez and Ángel J. Rico-Díaz and Juan R. Rabuñal-Dopico and Marcos Gestal},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016030301&doi=10.4018%2f978-1-5225-0889-2.ch003&partnerID=40&md5=111a6486334fb2ae38e1374ddf516db1},
doi = {10.4018/978-1-5225-0889-2.ch003},
isbn = {9781522508908; 1522508899; 9781522508892},
year = {2016},
date = {2016-01-01},
urldate = {2016-01-01},
journal = {Multi-Core Computer Vision and Image Processing for Intelligent Applications},
pages = {74-104},
publisher = {IGI Global},
abstract = {Vertical slot fishways are hydraulic structures which allow the upstream migration of fish through obstructions in rivers. Their design depends on the interplay between hydraulic and biological variables to match the requirements of the fish species for which they are intended. However, current mechanisms to study fish behavior in fishway models are impractical or unduly affect the animal behavior. In this chapter, we propose a new procedure for measuring fish behavior in fishways using Computer Vision (CV) techniques to analyze images obtained from the assays by means of a camera system designed for fishway integration. It is expected that this technique will provide detailed information about the fish behavior and will help to improve fish passage devices. A series of assays have been performed in order to validate this new approach in a full-scale fishway model and with living fishes. We have obtained very promising results that allow reconstructing correctly the movements of the fish within the fishway without disturbing fish. © 2017 by IGI Global. All rights reserved.},
note = {cited By 8},
keywords = {Animal behavior; Biological variables; Camera systems; Computer vision techniques; Current mechanisms; New approaches; Upstream migration; Vertical slot fishways, Computer vision; Fisheries; Fishways, Fish},
pubstate = {published},
tppubtype = {book}
}
2015
Rodríguez, Álvaro; Rico-Díaz, Ángel J.; Rabuñal-Dopico, Juan R.; Puertas-Agudo, Jerónimo; Pena-Mosquera, Luis
Fish monitoring and sizing using computer vision Journal Article
In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 9108, pp. 419-428, 2015, ISSN: 03029743, (cited By 14).
Abstract | Links | BibTeX | Tags: Algorithms; Computer vision; Fisheries; Image processing; Image segmentation; Optical data processing; Stereo image processing; Stereo vision, Biological variables; Computer vision techniques; Direct observations; Fish behavior; Image processing algorithm; Stereo system; Traditional techniques; Underwater environments, Fish
@article{Rodriguez2015419,
title = {Fish monitoring and sizing using computer vision},
author = {Álvaro Rodríguez and Ángel J. Rico-Díaz and Juan R. Rabuñal-Dopico and Jerónimo Puertas-Agudo and Luis Pena-Mosquera},
editor = {Adeli H. Paz Lopez F. Alvarez-Sanchez J.R.},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84937682467&doi=10.1007%2f978-3-319-18833-1_44&partnerID=40&md5=fabdeb31995aca27678a9b2c3968240a},
doi = {10.1007/978-3-319-18833-1_44},
issn = {03029743},
year = {2015},
date = {2015-01-01},
urldate = {2015-01-01},
journal = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)},
volume = {9108},
pages = {419-428},
publisher = {Springer Verlag},
abstract = {This paper proposes an image processing algorithm, based in a non invasive 3D optical stereo system and the use of computer vision techniques, to study fish in fish tanks or pools. The proposed technique will allow to study biological variables of different fish species in underwater environments. This knowledge, may be used to replace traditional techniques such as direct observation, which are impractical or affect the fish behavior, in task such as aquarium and fish farm management or fishway evaluation. The accuracy and performance of the proposed technique has been tested, conducting different assays with living fishes, where promising results were obtained. © Springer International Publishing Switzerland 2015},
note = {cited By 14},
keywords = {Algorithms; Computer vision; Fisheries; Image processing; Image segmentation; Optical data processing; Stereo image processing; Stereo vision, Biological variables; Computer vision techniques; Direct observations; Fish behavior; Image processing algorithm; Stereo system; Traditional techniques; Underwater environments, Fish},
pubstate = {published},
tppubtype = {article}
}
2013
Rodríguez, Álvaro; Rabuñal-Dopico, Juan R.; Bermudez, María; Puertas-Agudo, Jerónimo
Detection of fishes in turbulent waters based on image analysis Journal Article
In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 7931 LNCS, no. PART 2, pp. 404-412, 2013, ISSN: 03029743, (cited By 2).
Abstract | Links | BibTeX | Tags: Biological variables; Fish-Detection; Placement of sensors; Segmentation techniques; SOM; Traditional techniques; Turbulent water; Vertical slot fishways, Fish, Fisheries; Image segmentation; Medical applications; Statistical tests
@article{Rodriguez2013404,
title = {Detection of fishes in turbulent waters based on image analysis},
author = {Álvaro Rodríguez and Juan R. Rabuñal-Dopico and María Bermudez and Jerónimo Puertas-Agudo},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885723957&doi=10.1007%2f978-3-642-38622-0_42&partnerID=40&md5=cae9579dc359a89dd7a283e975f894b4},
doi = {10.1007/978-3-642-38622-0_42},
issn = {03029743},
year = {2013},
date = {2013-01-01},
urldate = {2013-01-01},
journal = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)},
volume = {7931 LNCS},
number = {PART 2},
pages = {404-412},
abstract = {This paper analyses the automatic fish segmentation problem in turbulent waters. To this end, a SOM neural network is used to detect fishes in images from an underwater camera system built in a vertical slot fishway, an hydraulic structure built in obstructions in rivers to allow the upstream migration of fishes. This technique allows the study of real fish behavior and may help to understand biological variables and swimming limitations of the fish species in high speed environments. This knowledge, may be used to replace traditional techniques such as direct observation or placement of sensors on the specimens, which are impractical or affect the fish behavior. To test the proposed technique, a ground true dataset was designed with experts and a series of assays have been performed where the results obtained with the proposed technique were compared with different segmentation techniques. © 2013 Springer-Verlag.},
note = {cited By 2},
keywords = {Biological variables; Fish-Detection; Placement of sensors; Segmentation techniques; SOM; Traditional techniques; Turbulent water; Vertical slot fishways, Fish, Fisheries; Image segmentation; Medical applications; Statistical tests},
pubstate = {published},
tppubtype = {article}
}
Rodríguez, Álvaro; Rabuñal-Dopico, Juan R.; Bermúdez, María; Pazos, Alejandro
Automatic fish segmentation on vertical slot fishways using SOM neural networks Journal Article
In: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 7902 LNCS, no. PART 1, pp. 445-452, 2013, ISSN: 03029743, (cited By 0).
Abstract | Links | BibTeX | Tags: ANN; Appropriate designs; Biological variables; Fish-Detection; Placement of sensors; SOM; Som neural networks; Vertical slot fishways, Fish, Fisheries; Fishways; Image segmentation; Neural networks
@article{Rodriguez2013445,
title = {Automatic fish segmentation on vertical slot fishways using SOM neural networks},
author = {Álvaro Rodríguez and Juan R. Rabuñal-Dopico and María Bermúdez and Alejandro Pazos},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880077800&doi=10.1007%2f978-3-642-38679-4_44&partnerID=40&md5=6120c419a7282f1056715d7b8c1fd619},
doi = {10.1007/978-3-642-38679-4_44},
issn = {03029743},
year = {2013},
date = {2013-01-01},
urldate = {2013-01-01},
journal = {Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)},
volume = {7902 LNCS},
number = {PART 1},
pages = {445-452},
abstract = {Vertical slot fishways are hydraulic structures which allow the upstream migration of fish through obstructions in rivers. The appropriate design of these should consider the behavior and biological variables of the target fish species and currently existing mechanisms to measure the behavior of the fish in these assays, such as direct observation or placement of sensors on the specimens, are impractical or unduly affect the animal behavior. This paper studies the application of Artificial Neural Networks to the problem of automatic fish segmentation in vertical slot fishways. In particular, SOM Neural Networks have been used to detect fishes using visual information sampled by an underwater camera system. A ground true dataset was designed with experts and different approaches were tested providing promising results. © 2013 Springer-Verlag Berlin Heidelberg.},
note = {cited By 0},
keywords = {ANN; Appropriate designs; Biological variables; Fish-Detection; Placement of sensors; SOM; Som neural networks; Vertical slot fishways, Fish, Fisheries; Fishways; Image segmentation; Neural networks},
pubstate = {published},
tppubtype = {article}
}
2006
Pena-Mosquera, Luis; Teijeiro-Rodríguez, Teresa; Puertas-Agudo, Jerónimo; Cea-Gómez, Luis
Hydraulics of vertical slot fishwas versus fish swimming capabilities Conference
International Association for Hydro-Environment Engineering and Research (IAHR), 2006, (cited By 0).
Abstract | Links | BibTeX | Tags: Biological variables; Design constraints; Different slopes; Empirical data; Fish swimming; Hydraulic properties; Optimal parameter; Water temperatures, Fish, Fisheries; Fishways; Hydraulics
@conference{PenaMosquera2006,
title = {Hydraulics of vertical slot fishwas versus fish swimming capabilities},
author = {Luis Pena-Mosquera and Teresa Teijeiro-Rodríguez and Jerónimo Puertas-Agudo and Luis Cea-Gómez},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85088068384&partnerID=40&md5=b55d8fcda9d5e73dba28e5a195d623a2},
year = {2006},
date = {2006-01-01},
urldate = {2006-01-01},
journal = {International Symposium on Hydraulic Structures - XXII Congreso Latinoamericano de Hidraulica},
publisher = {International Association for Hydro-Environment Engineering and Research (IAHR)},
abstract = {One of the major problems in fishway design is that optimal parameters depend on an interplay of hydraulic and biological variables. This study presents a methodology for evaluating fishway designs in terms of the swimming capabilities of the “client” fish. Specifically, we evaluate two vertical-slot designs whose hydraulic properties were empirically characterized in a previous study. In view of these empirical data, we estimate for each design a) minimum discharges giving minimum fish-acceptable depths; b) maximum pool sizes ensuring flow velocities low enough to be overcome by the fish; c) maximum pool sizes ensuring turbulence low enough to be acceptable to the fish. These design constraints are calculated for different slopes (~6% or ~10%), for different water temperatures (10, 15 or 20°C), and for different fish lengths. This methodology constitutes an effective means of taking fish swimming capabilities into account at the fishway design stage. © 2020 International Symposium on Hydraulic Structures - XXII Congreso Latinoamericano de Hidraulica. All rights reserved.},
note = {cited By 0},
keywords = {Biological variables; Design constraints; Different slopes; Empirical data; Fish swimming; Hydraulic properties; Optimal parameter; Water temperatures, Fish, Fisheries; Fishways; Hydraulics},
pubstate = {published},
tppubtype = {conference}
}