Dr. Dan A. Calian

Contact e-mail


I hold a Doctor of Engineering (EngD) degree in Computer Graphics and Vision from University College London. I was supervised by Prof. Jan Kautz (UCL/NVIDIA) and Prof. Kenny Mitchell (Disney Research).

I've also had the pleasure of working with Prof. Tim Weyrich (UCL), Dr. Derek Nowrouzezahrai (McGill University), Dr. Jean-François Lalonde (Université Laval), Dr. Paulo Gotardo (Disney Research) and Dr. Iain Matthews (Oculus Research).

Before coming to UCL I completed my undergraduate degree in Computer Science with AI at the University of Nottingham, graduating first in my year.


From Faces to Outdoor Light Probes

Dan Andrei Calian, Jean-François Lalonde, Paulo Gotardo, Tomas Simon, Iain Matthews, Kenny Mitchell

Computer Graphics Forum (Proceedings of Eurographics 2018), 37 (2), 2018

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The Shading Probe: Fast Appearance Acquisition for Mobile AR

Dan Andrei Calian, Kenny Mitchell, Derek Nowrouzezahrai, Jan Kautz

Proceedings of SIGGRAPH Asia 2013 Technical Briefs (SA '13). ACM, New York, NY, USA, Article 20

Abstract Preprint PDF BibTeX Other Project Page Official PDF Access Presentation Slides (PDF) Acquisition Video Rendering Video

3D-Printing of Non-Assembly, Articulated Models

Jacques Calì, Dan Andrei Calian, Cristina Amati, Rebecca Kleinberger, Anthony Steed, Jan Kautz, Tim Weyrich

ACM Transaction on Graphics (Proceedings SIGGRAPH Asia 2012), 31(6), November 2012, pages 130:1-130:8

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Integrating memetic search into the BioHEL evolutionary learning system for large-scale datasets

Dan Andrei Calian, Jaume Bacardit

Memetic Computing, June 2013, Volume 5, Issue 2, pages 95-130

Abstract Preprint PDF BibTeX Official PDF Access


During my doctorate I've investigated customised light probes and inverse lighting methods for relighting.

I completed various research internships at Disney Research, in their Edinburgh, Pittsburgh and Los Angeles labs. There I had the pleasure of working with Iain Matthews, Jean-François Lalonde, Paulo Gotardo and Tomas Simon Kreuz.

During my MRes at UCL, I worked on the Automatic Joint Modelling for Printing Articulated Models group project. We looked at embedding functional joints in 3D models such that they can be 3D printed without requiring any assembly, with our paper being accepted at SIGGRAPH Asia 2012.

Previously, as part of a 2nd year undergraduate research internship and my final year dissertation, I have worked on developing, integrating and analysing the performance of memetic algorithms for the BioHEL evolutionary learning system, while being supervised by Dr. Jaume Bacardit. Our resulting paper has been published in the Memetic Computing journal.


I have been a teaching assistant for the following courses:

3D Computer Graphics (3080/GV10, Autumn 2012/2013)

VEIV Summer School on 3D Design & Fabrication (10-14th June 2013)

Other Projects

I used to spend my free time developing PC/Android games. Previously, I have developed a Rubik's cube game, a Backgammon game with AI, a reverse space invader game, a "circling rabbit" game, etc. These games, and some other potentially useful small pieces of software were available at my old website, before the webhost got hacked. If you would like the binaries, let me know.

I have also enjoyed helping Dr. Tolga Zafer Ozdemir, a composer/professor with coding his "Tritonet" virtual MIDI instrument in Processing.