Santiago Jimenez Navarro

PhD Candidate in Computer Science

Hi! I am Santiago, a PhD candidate in Computer Science at the Graphics and Imaging Lab at University of Zaragoza (Spain), working under the supervision of Prof. Ana Serrano and Prof. Belen Masia. Previously, I obtained a BSc degree in Computer Science at University of Zaragoza, and a MSc in Robotics, Graphics and Computer Vision at the same University.
My research interests span in the intersection between Computer Graphics and Machine Learning, with a special focus in human perception. My non-academic interests include practicing sports and learning new skills!

  • Download my CV here
  • Email: s.jimenez@unizar.es
  • Location: Zaragoza, Spain
  • ORCID: 0009-0004-7376-8894

Publications

teaser_matdisent

A Controllable Appearance Representation for Flexible Transfer and Editing

Eurographics Symposium on Rendering (EGSR) 2025

We present a method that computes an interpretable representation of material appearance within a highly compact, disentangled latent space. We train our model with a carefully designed unlabeled dataset, avoiding possible biases induced by human-generated labels. Our model demonstrates strong disentanglement and interpretability by effectively encoding material appearance and illumination, despite the absence of explicit supervision. We leverage it for two proof-of-concept applications: image-based appearance transfer and editing, by conditioning a diffusion pipeline. This approach offers fine-grained control over the generated results: thanks to the well-structured compact latent space, users can intuitively manipulate attributes such as hue or glossiness in image space to achieve the desired final appearance.

Santiago Jimenez-Navarro, Julia Guerrero-Viu, Belen Masia

Resume

Education

PhD in Computer Science

2024 - Present

Supervised by Prof. Ana Serrano and Prof. Belen Masia in the
Graphics & Imaging Lab

Universidad de Zaragoza, Spain

Thesis titled Perceptually-informed Material Appearance Modeling and Editing

Master in Robotics, Graphics and Computer Vision

2022 - 2024

Universidad de Zaragoza, Spain

Master thesis, titled Learning Interpretable Representations of Material appearance, funded by a competitive scholarship from the Aragon Institute for Engineering Research (I3A), and graded with a 9.5/10 with honors

BSc in Computer Science

2018 - 2022

Universidad de Zaragoza, Spain

Final degree project, titled Audiovisual Saliency Prediction in 360º Content, graded with a 9.6/10, and awarded by the Santander Bank as the third best in the field of engineering and architecture

Experience

Machine Learning Summer School

June 2025

Castiglione della Pescaia, Tuscany, Italy

  • Attended the 8th Advanced Course on Data Science & Machine Learning (ACDL 2025) summer school, with lecturers from institutions such as Princeton University, Google DeepMind, EPFL, Stanford University, or Google Research
  • Course equivalent to 8 ECTS points

MSc Research Internship

February 2023 - June 2023

Graphics and Imaging Lab, Zaragoza, Spain

BSc Research Internship

December 2021 - March 2022

Graphics and Imaging Lab, Zaragoza, Spain

Supervision

Measuring material appearance similarity: Analysis of a learning-based metric

2025

Ming Tao Ye - BSc in Computer Science

BSc Thesis graded 9.7/10 with honors

Reviewer

Eurographics

2026

Miscellaneous

Image

Presentation of our paper at EGSR 2025

June 2025

It was a pleasure to present our paper A Controllable Appearance Representation for Flexible Transfer and Editing at Eurographics Symposium on Rendering 2025 (EGSR 2025). It was a great first step in my research career, and fantastic opportunity to share our findings with the rendering community, receive valuable feedback and engage in inspiring discussions with other researchers.

Image

Machine Learning Summer School

June 2025

I had the great chance to participate in ACDL 2025 (8th Advanced Course on Data Science & Machine Learning) summer school. It was a wonderful experience to learn from leading researchers in the field and to exchange ideas with participants from all over the world. The lectures and discussions covered a wide range of exciting topics, offering valuable insights into current trends and challenges in AI.

Image

European Researchers' Night

September 2024

I had the great chance to participate in the European Researchers' Night alongside my colleagues from the Graphics and Imaging Lab. During this public event, we shared our research with people of all ages, explaining the exciting work carried out by different research groups at the university. In our case, we explored topics such as visual illusions and computer-generated imagery. It was a great experience to bring research closer to the public and spark curiosity about these topics!

Image

Young Researchers' Day

June 2024

During the Young Researchers' Day at the Aragon Institute for Engineering Research (I3A), I presented my poster on Aprendizaje no Supervisado de Representaciones Interpretables y Desenredadas de la Apariencia de Materiales. Sharing opinions and discussing with fellow researchers with great experience in their fields allowed me to gain a new perspective about my work!

Image

Santander Bank Award to BSc Thesis

September 2023

I received the third prize for Best BSc Thesis (TFG) in Engineering and Architecture, awarded by Santander Bank — a meaningful recognition of the effort and work behind my bachelor's project. Full text is available (in Spanish) here

Contact

For any research inquiry, please do not hesitate to reach out!

Location:

C. Mariano Esquillor Gómez, s/n, 50018 Zaragoza