Juan Raúl Padrón Griffe

About me
I am a Marie Sklodowska-Curie Fellow of the EU Project PRIME and a PhD candidate at the Graphics and Imaging Lab. My PhD thesis under the supervision of Prof. Adolfo Muñoz and Prof. Adrian Jarabo focuses on physically-based rendering and appearance modeling of multi-scale materials, such as biological tissues (skin, scales and feathers) and intricate human-made objects (cosmetics). Previously, I earned my Bachelor of Sciene degree in Computer Science at the Universidad Central de Venezuela, where I specialized in computer graphics and imaging processing. My undergraduate thesis explored the generation and visualization of procedural terrains. Later, I received my Master of Science degree in Informatics at the Technical University of Munich, concentrating on computer graphics, computer vision and machine learning. During my Master studies, I conducted research on 3D Scanning and Neural Rendering for object and face relighting advised by Dr. Justus Thies. Beyond my academic experience, I have two years of software development experience in backend technologies (.NET, Service Stack, Java, Spring).

Looking for Opportunities
I recently submitted my Ph.D. dissertation under the title “Modeling and Rendering of Multiscale Materials”. I am currently seeking both postdoctoral and industry opportunities where I can apply my expertise in computer graphics, computer vision and artificial intelligence for the digital acquisition, representation and understanding of the visual world. My combined expertise in computer graphics, computer vision, machine learning, and software engineering allows me to tackle complex technical challenges from both a research and implementation perspective, If you're interested in collaboration or have an opportunity that aligns with my expertise, please feel free to reach out!

Projects

Snake Skin Rendering (CEIG 2023)

2023, Jul 06    

This project started as a bachelor thesis of a talented student (Diego Bielsa) that I supervised together with Adolfo Muñoz at the Graphics and Imaging Lab and later it was presented at the Spanish Computer Graphics Conference (CEIG 2023, Palma de Mallorca) under the title “A Biologically-Inspired Appearance Model for Snake Skin”. The implementation consists of a multi-layered material implemented inside the physically-based renderer Mitsuba 0.6 using the Position-Free Monte Carlo formulation. The top layer is a thin layer responsible for the specular iridescent reflection using a practical iridescent microfacet model, while the bottom layer is a diffuse highly-absorbing layer designed to reproduce the dark diffuse appearance that highlight the iridescent colors of the snake skin. If you would like to know more about this project, then please visit the official project website Snake Appearance Model. Below you can see a beautiful rendering of a snake 3D model using our practical snake skin reflectance model roughly matching the general appearance of a Xenopeltis Unicolor!

Rendering Xenopeltis Unicolor

Team Members: Juan Raul Padron Griffe, Diego Bielsa

Github repository(Coming soon)

If you are interested in reptiles and their beautiful skin colours (pigmentary and structural) and skin colour patterns, then I would strongly encourage you to visit the official website of the Laboratory of Artificial & Natural Evolution at the University of Geneva!

Twitter
# Appearance Modeling # Rendering