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Impact on the Sustainable Development Goals (SDGs)

Analysis of institutional authors

Cortes Sanchez, CarlosAuthorGarcía Santos, NarcisoAuthorCuevas Rodriguez, CarlosAuthorCortes, CarlosAuthor

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December 11, 2025
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Engaging Students in Audiovisual Coding Through Interactive MATLAB GUIs

Publicated to: IEEE Access. 13 8158-8168 - 2025-01-01 13(), DOI: 10.1109/ACCESS.2024.3521511

Authors:

Cuevas, C; Cortés, C; García, N
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Affiliations

- Author
Univ Politecnicade Madrid UPM, Informat Proc & Telecommun Ctr IPTC, Grp Tratamiento Imagenes GTI, Madrid 28040, Spain - Author

Abstract

Traditional educational methods in higher education, such as lectures and hands-on exercises, often struggle to fully engage students or address the complexities inherent in audiovisual signal coding. This gap underscores the need for innovative educational tools that not only foster deeper understanding but also enhance student engagement within the university setting. Effective evaluation of these tools requires comprehensive assessment of both learning outcomes and user experience. This study introduces three novel graphical user interface applications designed to strengthen foundational knowledge in audio, image, and video signal coding. These interactive tools, specifically developed for use in university courses, allow students to experiment with various coding techniques, providing hands-on experience that bridges theoretical concepts and practical application. Furthermore, we propose a robust methodology to evaluate the effectiveness of these tools in improving learning outcomes. The tools, developed using MATLAB, were integrated into a computer vision course and assessed through a combination of pre- and post-tests, the System Usability Scale, and the Evaluation Tool for Learning Quality. Results indicate a significant improvement in student knowledge and positive feedback regarding the usability and educational value of the tools. These findings suggest that the interactive nature of the tools not only enhances knowledge retention but also boosts student engagement, offering a valuable complement to traditional educational methods in higher education.
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Keywords

Audio codingAudio-visual codingAudiovisualAudiovisual codingCurriculaEducationEngaging studentsExperienceGraphical toolsGraphical user interfacesHigh educationsImage codingInteractive learningLearning outcomeMatlabMatlab guiMatlab/guiProgramming professionQuality educationQuantization (signal)Signal codingSignal to noise ratioStudent engagementStudentsSupportTeachingTeaching effectivenessUsabilityUsability engineeringVisualization

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal IEEE Access due to its progression and the good impact it has achieved in recent years, according to the agency Scopus (SJR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position , thus managing to position itself as a Q1 (Primer Cuartil), in the category Engineering (Miscellaneous).

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-04-27:

  • WoS: 1
  • Scopus: 1
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-27:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 16 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
  • Assignment of a Handle/URN as an identifier within the deposit in the Institutional Repository: https://oa.upm.es/91367/
Continuing with the social impact of the work, it is important to emphasize that, due to its content, it can be assigned to the area of interest of ODS 4 - Quality Education, with a probability of 61% according to the mBERT algorithm developed by Aurora University.
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Cuevas, Carlos) and Last Author (Garcia, Narciso).

the author responsible for correspondence tasks has been Cuevas, Carlos.

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Project objectives

Los objetivos perseguidos en esta aportación se centran en mejorar la enseñanza del codificado audiovisual mediante herramientas interactivas. Se pretende desarrollar interfaces gráficas de usuario (GUIs) en MATLAB para fortalecer el conocimiento básico en codificación de audio, imagen y vídeo. Además, se busca facilitar la experimentación práctica de los estudiantes con diversas técnicas de codificación, integrando teoría y aplicación. Otro objetivo es implementar una metodología robusta para evaluar la efectividad de estas herramientas en la mejora del aprendizaje. Finalmente, se aspira a medir la usabilidad y la calidad educativa de las aplicaciones para fomentar una mayor implicación estudiantil en cursos universitarios.
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Most relevant results

El estudio presenta el desarrollo e implementación de tres interfaces gráficas interactivas en MATLAB para la enseñanza de codificación audiovisual en educación superior. Los resultados más relevantes son: 1) se observó una mejora significativa en el conocimiento de los estudiantes, evidenciada mediante pruebas pre y post intervención; 2) la evaluación mediante la System Usability Scale reflejó una alta usabilidad de las herramientas; 3) el instrumento Evaluation Tool for Learning Quality indicó una valoración positiva en cuanto al valor educativo; 4) la interacción facilitó la conexión entre conceptos teóricos y su aplicación práctica; y 5) se constató un aumento en la motivación y el compromiso de los estudiantes durante el aprendizaje.
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Awards linked to the item

This work was supported in part by Ministerio de Ciencia, Innovacion y Universidades (MCIU)/Agencia Estatal de Investigacion(AEI)/10.13039/501100011033 of the Spanish Government under Project PID2020-115132RB (SARAOS) and ProjectPID2023-148922OA-I00 (EEVOCATIONS)
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