Tiago Novello

I 'm a researcher at IMPA and member of the Visgraf laboratory. My current research is in the intersection of Computer Graphics and Machine Learning.

Before coming to IMPA, I obtained my Ph.D. in applied mathematics at  Pontifical Catholic University of Rio de Janeiro, advised by Carlos Tomei and João Paixão. My thesis introduced the discrete line fields as an extension of Forman's discrete Morse theory.

I received my M.Sc. degree in Mathematics at Universidade Federal de Alagoas, supervised by Thales Miranda and Dimas Martínez with an emphasis on discrete differential geometry. 

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Projects

Neural Implicit representations

Vinícius da Silva, Hélio Lopes, Guilherme Shardong, Luiz Schirmer, and Luiz Velho.

IMPA, PUC-Rio, U Coimbra, 2021.

Ray VR 

Luiz Velho and Vinícius da Silva, 

IMPA, 2019.

Publications

Neural Implicit Morphing of Face Images

Guilherme Schardong,* Tiago Novello*, Vinicius da Silva, Hallison Paz, Iurii Medvedev, Luiz Velho, Nuno Gonçalves

CVPR,  2024

[paper][page][tweet][code]

Implicit Neural Representation of Tileable Material Textures

Hallison Paz, Tiago Novello, Luiz Velho

arXiv,  2024

[arXiv]

Neural Implicit Surface Evolution

Tiago Novello, Vinicius da Silva, Guilherme Schardong, Luiz Schirmer, Helio Lopes, Luiz Velho

ICCV,  2023

[paper][page][arXiv]

How to train your (neural) dragon

Luiz Schirmer, Tiago Novello, Vinicius da Silva, Guilherme Schardong, Helio Lopes, Luiz Velho

Tutorial, SIBGRAPI, 2023.

[paper][page]

Multiresolution Neural Networks for Imaging

Hallison Paz, Daniel Perazzo, Tiago Novello, Guilherme Schardong, Luiz Schirmer, Vinicius da Silva, Daniel Yukimura, Fabio Chagas, Helio Lopes, Luiz Velho

Technical paper, SIBGRAPI, 2022

[paper][arXiv][page]

Extension to Computer & Graphics, 2023

[paper]

Neural Implicit Mapping via Nested Neighborhoods

Vinícius da Silva, Tiago Novello, Guilherme Schardong, Luiz Schirmer, Hélio Lopes, Luiz Velho

arXiv2022

[arXiv]

Exploring Differential Geometry in Neural Implicits

Tiago Novello, Guilherme Schardong, Luiz Schirmer, Vinicius da Silva, Helio Lopes, Luiz Velho

Computer & Graphics, 2022

[paper][published version][arXiv][page]

GPU Ray Tracing in Non-Euclidean Spaces

Tiago Novello, Vinícius da Silva, Luiz Velho

Morgan and Claypool, 2022.

[book]

How to see the eight Thurston geometries

Tiago Novello, Vinícius da Silva, Luiz Velho, Mikhail Belolipetsky

Ensaios Matemáticos, 2021.

[paper in arXiv][published version]

Neural Networks for Implicit Representations of 3D Geometry

Luiz Schirmer, Guilherme Schardong, Vinícius da Silva, Tiago Novello, Daniel Yukimura, Thales Magalhaes, Hallison Paz, Hélio Lopes, Luiz Velho

Tutorial, SIBGRAPI, 2021.

[paper][youtube]

Visualizing Thurston’s Geometries

Tiago Novello, Vinícius da Silva, Luiz Velho

Editora do IMPA, 2021.

[book][course]

Real-time rendering of complex fractals

Vinícius da Silva, Tiago Novello, Hélio Lopes, Luiz Velho

Ray Tracing Gems II, chapter 33,  2021.

[paper][website]

Discrete line fields on surface 

Tiago Novello, João Paixão, Carlos Tomei, Thomas Lewiner

Topology and its Applications, 2021.

[paper in arXiv][published version]

Proceduray -- A light-weight engine for procedural primitive ray tracing

Vinícius da Silva, Tiago Novello, Hélio Lopes, Luiz Velho

arXiv, 2020.

[paper][website]

Visualization of Nil, Sol, and SL2 Geometries

Tiago Novello, Vinícius da Silva, Luiz Velho

Computers & Graphics, 2020.

[paper][website]

Design and visualization of Riemannian metrics

Tiago Novello, Vinícius da Silva, Luiz Velho

arXiv, 2020.

Illustrating Mathematics, chapter Video and Virtual Reality, Pg 71, AMS

Tiago Novello, Vinícius da Silva, Luiz Velho

Discrete line fields on surface 

 PhD Thesis, advised by Carlos Tomei and João Paixão, 

PUC-Rio, 2018.

[thesis][paper in arXiv][published version]

Discrete gradient line fields on surfaces

Tiago Novello, Thomas Lewiner, João Paixão, Carlos Tomei

arXiv, 2017

Greedy Morse matchings and discrete smoothness

Joao Lagoas, Thomas Lewiner,  Tiago Novello, Joao Paixao

arXiv, 2017

Computing ridges lines on GPU

Tiago Novello, Thiago Gomes, Thales Vieira, Rodrigo de Toledo, Thomas Lewiner

Researchgate, 2018

Computing the lines of curvature on mesh of triangles without parametrization using discrete geodesics

Masters Thesis, advised by Thales Miranda and Dimas Martínez, 

UFAL , 2014

Application of differential equation of first order with geometric approach in mathematics course at FECILCAM 

Graduation Thesis, advised by Valdete Coqueiro and Rosangela Teixeira

FECILCAM, 2011


Differential equations applied in compartiment models

Tiago Novello, Valdete Coqueiro, Rosangela Teixeira

Encontro de Produção  Científica e Tecnológica, 2011

Research interests

Collaborators

Mentoring

Teaching

2018.2

Introduction to computer graphics at Universidade Federal do Rio de Janeiro,  Brazil

Calculus at Universidade Federal do Rio de Janeiro,  Brazil


2018.1

Introduction to computer graphics at Universidade Federal do Rio de Janeiro,  Brazil

Combinatorics at Universidade Federal do Rio de Janeiro,  Brazil


2014.1

Multivariable calculus (laboratory) at Pontifícia Universidade Católica, Rio de Janeiro, Brazil

Contact

E-mail: tiago.novello@impa.br

Mailing Address:

IMPA

Estrada Dona Castorina, 110

Jardim Botânico | CEP 22460-320

Rio de Janeiro, RJ - Brasil