Our paper Non-line-of-sight imaging in the presence of scattering media using Phasor Fields has been accepted in Optics Letters!
We have presented at SIGGRAPH 2021 our paper Primary-Space Adaptive Control Variates using Piecewise-Polynomial Approximations!
I have joined the Realistic Graphics Lab at EPFL to do a PhD under the supervision of Prof. Wenzel Jakob!
Our paper Primary-Space Adaptive Control Variates using Piecewise-Polynomial Approximations has been accepted in ACM Transactions on Graphics and will be presented at SIGGRAPH 2021!

Miguel Crespo

Hi! 👋 I am a second-year PhD student in the REALISTIC GRAPHICS LAB at under the supervision of Prof. WENZEL JAKOB. Prior to joining EPFL, I studied a Bachelor's degree in Computer Science and a Master's degree in Biomedical Engineering, both at UNIVERSIDAD DE ZARAGOZA. During that time and after, I have been a junior researcher in the GRAPHICS & IMAGING LAB under the supervision of Prof. ADOLFO MUÑOZ and Prof. ADRIAN JARABO.

My work revolves around the different aspects of physically-based and differentiable rendering, including light transport and reconstruction, with mention on both transient and computational imaging. Nevertheless, I’m always looking forward to learning something new!

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Resources

Useful links

Resources

Advice and guidelines

Nice tutorials / helpers

Blogs / Webpages

Links for PhDs

Rendering

Projects

Citation File Format (CFF) Online Editor

Want to quickly add a citation to the Github repo of your paper's public implementation? Using my tool, you only need to enter the DOI/arXiv-ID, and it will automatically generate all the necessary fields.

Link

Blender Exporter for Mitsuba 1

Fully fledged Blender exporter with extended support of cycle materials, participating media and editor of curves to export motion blur for both geometry and camera. Also, added support for true Point Lights.

Code

ANZEIGE: Interactive Results Suite

Automatic generator of a webpage with comparisons of renders with support of visualizer (including insets), runtime-generated several error metrics, video player with slider and error metric table.

LIGHTNING: Physically-based Renderer on CPU

Fully CPU-parallel Physically-based renderer featuring both unidireccional Path Tracing and Photon Mapping. As additional features, next event estimation, acceleration structures, participating media and several BRDF. This project was awarded with a honor mention and was the winner of the best looking render competition.

MOVBOT: Zaragoza Public Transport Telegram Assistant

Telegram bot that allows to direct query, fuzzy search or GPS-locate stops of both bus and tram in Zaragoza. Allows to track easily times than the original webpage of the city council.

J.A.R.V.I.S: Discord Bot based in NLP and Voice Control

Fully-fledge Discord bot with support for answer queries both writen and speaked that can run in low-tier cloud systems. Added voice control is a marvellous when you are ingame and need to manage something from the server (or change the playlist).

CRISTOBAL: Mindstorm-based fully fledge robot OS

The system features dynamic path planning and awareness of the surrounding world by combining odometry of the wheels, gyroscope, compass and sonar. To reduce shift in data, it features a sensor-fusion approach using Extended Kalman Filter, allowing to increase the accuraty of the position. This project was awarded with the mention of honor as the best approach.

LITTLE-LENG: Full AST Compiler for Custom Language

Full compiler using JavaCC with a custom-made abastract syntax tree. Compiler features constant-time aggregation of operations, strong typing, usefull error/warning messages (including suggestions of misspell names), removal of unused parameters, optimization of math operators and emojis.

VERWEISE: Next-gen Bibliography Manager

Cross-platform bibliography manager with a focus in usability and management of larger libraries. Future features will support sharing between users and tentative ML approach to discover and extract information.

BASKET-VR: Assignment for VR Course

Assignment for the VR Course where the students learn about movement in VR enviorements and how to interact with the world using controllers. To make it fun, students end playing virtual basketball.

Fourier Classifier based on CNN Arquitecture

Improved solution that changes the net architecture to use Convolutions, allowing the system to work with crops of the signal instead of the full data. This solution was originated as an improvement over previous solution to allow its use in realtime situations (as games livestreams).

UCODE 2019 - Fourier Classifier ML

Our project submitted to the hackathon competition where we solved the Adidas Advanced Division's problem about classifying movement sequences using Machine Learning applied in frequency space. We achieved a 94% accuraty.

UCODE 2018 - Indoors Beacon-based Location

Our project submitted to the hackathon competition where we designed and implemented an indoors solution for tracking users when GPS is not an option. Our solution works with Bluetooth technology and allows to guide users given their positions and preferences.

About me

Education

Ph.D. in Computer Science @ Realistic Graphics Lab
Sep. 2021 - Present
École Polytechnique Fédérale de Lausanne
Lausanne, Switzerland
Advisor: Wenzel Jakob
M.S. in Biomedical Engineering
Sep. 2018 - Dec 2019
Universidad de Zaragoza
Zaragoza, Spain
Advisor: Adrian Jarabo
Thesis: Vision through Turbid Media using Phasor Fields (10 / 10)
B.S. in Computer Science
Sep. 2014 - Dec 2018
Universidad de Zaragoza
Zaragoza, Spain
Advisor: Adolfo Muñoz
Thesis: Adaptative Rendering using Quadrature Techniques (9 / 10)

Experience

Graphics & Imaging Lab
2018 - 2020
Junior Researcher
Zaragoza, Spain
Academic research lab
Supervisors: Adolfo Muñoz & Adrian Jarabo

Teaching

Numerical Methods for Visual Computing and Machine Learning (CS-328)
Teaching assistant
Fall 2022
Advanced Computer Graphics (CS-440)
Teaching assistant
Spring 2022

Supervised Students

Alternative Optimization Methods for Differential Rendering
David Neill
Spring 2022
Semester project
Differentiable Mipmapping in Mitsuba 2
Haley Owsianko
Fall 2021
Semester project

Awards & Grants

Scholarship for Strategic Masters
Gobierno de Aragón
2018
4,770 EUR
Honor mention in M.S.
Universidad de Zaragoza
2019
Mention for outstanding performance in MSc Final Thesis
Honor mentions in B.S.
Universidad de Zaragoza
2018
Mentions for outstanding performance in Computer Graphics, Robotics, Hardware Project, and Operating Systems

Talks

Primary-Space Adaptive Control Variates using Piecewise-Polynomial Approximations
Technical paper presentation
Aug. 2021
Virtual (originally scheduled in Los Angeles, U.S.)
Vision through Turbid Media using Phasor Fields
MSc thesis defense
Dec. 2019
Universidad de Zaragoza - Spain
Adaptative Rendering using Quadrature Techniques
BSc thesis defense
Jun. 2018
Universidad de Zaragoza - Spain

Competitions

UCODE - 2019
Hackathon
22, 23 & 24 Mar. 2019
We solved the Adidas Advanced Division's problem about classifying movement sequences using Machine Learning applied in frequency space (94% accuracy)
UCODE - 2018
Hackathon
9, 10 & 11 Mar. 2018
We proposed a solution to solve the challenge of GPS indoors using location-based Bluetooth beacons and later smart guidance of users in stores based on a recommendation system to optimize user engagement with products
UCODE - 2017
Hackathon
10, 11 & 12 Mar. 2017
We developed a Deep Learning system that extracted semantic content from videos, allowing them to be searched and clipped intelligently

Miguel Crespo

Publications

Non-line-of-sight imaging in the presence of scattering media using Phasor Fields

Primary-Space Adaptive Control Variates using Piecewise-Polynomial Approximations

Vision through Turbid Media using Phasor Fields

Adaptive Rendering using Quadrature Techniques