Publications

2026

Local Surface Approximation Contours for Virtual Reality Stylisation

Amir Zaidi, Ricardo Marroquim, Elmar Eisemann
to appear at IEEE Transactions on Visualization and Computer Graphics (TVCG)
presented at: IEEE VR'26

2025

Manual Registration in AR-Assisted Surgical Navigation: A Comparative Evaluation

Jiaqi Tang, Abdullah Thabit, Theo van Walsum, Ricardo Marroquim, Mohamed Benmahdjoub
International Journal of Computer Assisted Radiology and Surgery

Puzzle Playground -- Teaching VR Interactions Through a Puzzle Game

Vincent Albertsson, Patrick Hibbs, Csanad Farkas, Qinxin Ren, Amir Zaidi, Ricardo Marroquim, Elmar Eisemann, Rafael Bidarra
Games and Learning Alliance (GALA)

2024

Importance of Multi-modal Reflection Data for Predictive Rendering

Olaf Clausen, Yang Chen, Arnulph Fuhrmann, Ricardo Marroquim
Workshop on Material Appearance Modeling

Retinal pre-filtering for light field displays

Rafael Romeiro, Elmar Eisemann, Ricardo Marroquim
Computers & Graphics , Vol 123

A Practical Real-Time Model for Diffraction on Rough Surfaces

Olaf Clausen, Martin Mišiak, Arnulph Fuhrmann, Ricardo Marroquim, Marc Erich Latoschik
Journal of Computer Graphics Techniques , Vol 13 (1), pages 1-27

3D magnetic seed localization for augmented reality in surgery

Pierre Ambrosini, Sara Azizian Amiri, Eliane Zeestraten, Tessa van Ginhoven, Ricardo Marroquim, Theo van Walsum
International Journal of Computer Assisted Radiology and Surgery , Vol 19, pages 723-733

2023

Investigation and Simulation of Diffraction on Rough Surfaces

Olaf Clausen, Yang Chen, Arnulph Fuhrmann, Ricardo Marroquim
Computer Graphics Forum , vol 42 (1), pages 245-260

ComVis-Sail: Comparative Sailing Performance Visualization for Coaching

Marcos Pieras, Ricardo Marroquim, Douwe Broekens, Elmar Eisemann, Anna Vilanova
Computer Graphics Forum , vol 42 (1), pages 86-100

Laplacian face blending

Diego Mazala, Claudio Esperança, Ricardo Marroquim
Computer Animation and Virtual Worlds , Vol 34 (2)

Exploring Value and Ethical Dimensions of Disruptive Technologies for Learning and Teaching

Terge Väljataga and Kai Pata and Andrea Annus and Michelle Andrade Calisto and Agueda Gomez Cambronero and Elmar Eisemann and Athina Kasini and Ricardo Marroquim and Inmaculada Remolar and László Szécsi and Amir Zaidi and Rúben Gárcia Vidal
13th International Conference on Methodologies and Intelligent Systems for Technology Enhanced Learning

2022

A New Baseline for Feature Description on Multimodal Scans of Paintings

Jules van der Toorn, Ruben Wiersma, Abbie Vandivere, Ricardo Marroquim, Elmar Eisemann
EG Workshop on Graphics and Cultural Heritage , Best Paper Award

Semi-Automatic Perspective Lines from Paintings

Yoann Coudert-Osmont, Elmar Eisemann, Ricardo Marroquim
EG Workshop on Graphics and Cultural Heritage

Real-Time Relighting of Human Faces with a Low-Cost Setup

Nejc Maček, Baran Usta, Elmar Eisemann, Ricardo Marroquim
Proceedings of the ACM on Computer Graphics and Interactive Techniques , Vol 5 (1), pages 1-19,
presented at: i3D 2022 - ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games

2021

Stabilization and Visual Analysis of Video-Recorded Sailing Sessions

Gijs Reichert, Marcos Pieras, Ricardo Marroquim, Anna Vilanova
Visual Computing for Industry, Biomedicine, and Art , Vol 4(1)

AR-Assisted Craniotomy Planning for Tumour Resection

Joost Wooning, Mohamed Benmahdjoub, Theo van Walsum, Ricardo Marroquim
VCBM - Eurographics Workshop on Visual Computing for Biology and Medicine

SailVis: Reconstruction and Multifaceted Visualization of Sail Shape

Danfeng Mu, Marcos Pieras, Douwe Broekens Ricardo Marroquim
EuroVis 2021 - Short Papers

Monocular 3D reconstruction of sail flying shape using passive markers

Luiz Maciel, Ricardo Marroquim, Marcelos Vieira, Kevyn Ribeiro, Alexandre Alho
Machine Vision and Applications , Vol 32 (1), pages 1-21

2020

Visual analysis of video recorded dinghy sailing sessions

Gijs Reichert, Marcos Pieras, Ricardo Marroquim, Anna Vilanova
VINCI 2020

2019

Towards Predictive Virtual Prototyping: Color Calibration of Consumer VR HMDs

Olaf Clausen, Gregor Fischer, Arnulph Fuhrmann, Ricardo Marroquim
16th GI AR/VR Workshop , Best Paper Award

Accessible Digitisation and Visualisation of Open Cultural Heritage Assets

Asla Sá, Karina Rodriguez, Ricardo Marroquim, Adolfo Ibañez, Vivian Fonseca
EG Workshop on Graphics and Cultural Heritage

OMiCroN - Oblique Multipass Hierarchy Creation while Navigating

Vinicius da Silva, Claudio Esperança, Ricardo Marroquim
Computers & Graphics , Vol 84, pages 42-54, November
presented at: Sibgrapi'19 (October)

Open cultural heritage: The modern Rio

Asla Sá, Vivian Fonseca, Adolfo Ibañez, Ricardo Marroquim, Karina Rodriguez, Daniel Reis, Marília Alves
Seen Unseen: 3D Visualization , ISBN 978-85-9497-044-2

A Practical and Efficient Approach for Correct Z-Pass Stencil Shadow Volumes

Baran Usta, Leonardo Scandolo, Markus Billeter, Ricardo Marroquim, Elmar Eisemann
High-Performance Graphics 2019 (short papers) , Strasbourg, July 2019

What is the Reddening Effect and does it really exist?

Olaf Clausen, Ricardo Marroquim, Arnulph Fuhrmann, Holger Weigand
The 7th Annual Eurographics Workshop on Material Appearance Modeling , Strasbourg, July 2019

A Systematic Evaluation of Connected Component Labeling Algorithms and their Extension for Property Extraction

Pedro Asad, Ricardo Marroquim, Andréa Lins
IEEE Transactions on Image Processing , vol 28 (1), pages 17-31, January 2019

2018

Acquisition and Validation of Spectral Ground Truth Data for Predictive Rendering of Rough Surfaces

Olaf Clausen, Ricardo Marroquim, Arnulph Fuhrmann
Computer Graphics Forum , vol 37 (4), pages 1-12, July 2018
presented at: EG Symposium on Rendering'18

2017

Digitising Ivory Artefacts at the National History Museum in Brazil

Ricardo Marroquim, Asla Sá, Karina Rodriguez, Vitor Balbio, Rafael Zamorano
EG Workshop on Graphics and Cultural Heritage , Graz, September 2017

Assisted Color Acquisition for 3D Models

Daniel Coutinho, Ricardo Marroquim, Matteo Dellepiane, Roberto Scopigno
Computer & Graphics , vol 68, pages 119-128, November 2017
presented at: Sibgrapi'17

DiLight: Digital Light Table - Inbetweening for 2D Animations Using Guidelines

Leonardo Carvalho, Ricardo Marroquim, Emilio Vital Brazil
Computer & Graphics , vol 65, pages 31-44, June 2017
presented at: Shape Modelling International (SMI'18)

2016

Digitizing 3D Historical Scientific Instruments with Laser and Photographic Technologies

Ricardo Marroquim, Daniel Coutinho, Marcus Granato
Lights on? Cultural Heritage and Museums! , Porto: LabCR | FLUP, 1st ed, pages 193-211, ISBN 978-989-8648-98-3, December 2016

Graph-based Interactive Volume Exploration

Daniel Ponciano, Marcos Seefelder, Ricardo Marroquim
Computers & Graphics , vol 60, pages 55-65, November 2016
presented at: Sibgrapi'16

Interactive Cutaways of Oil Reservoirs

Felipe de Carvalho, Emilio Brazil, Ricardo Marroquim, Mario Souza, Antonio Oliveira
Graphical Models , vol 84, pages 1-14, March 2016

2015

Generation of 3D ultrasound biomicroscopic images: technique validation and in vivo volumetric imaging of rat lateral gastrocnemius

Natália S. da Fonseca Martins, Luisa Tinoco Carneiro, Hugo de Mello Dantas, Claudio Esperança, Ricardo Marroquim, Liliam Fernandes de Oliveira, João Carlos Machado
Research on Biomedical Engineering , vol 31, pages 85-96, June 2015

Research on Metal Objects Conservation in MAST: A Strategic Area for Musuems in Brazil

Marcus Granato, Guadalupe Campos, Ricardo Marroquim
Proceedings of the XVI ENANCIB , João Pessoa, October 2014

2014

Image Space Rendering of Point Clouds Using the HPR Operator

Renan Machado e Silva, Claudio Esperança, Ricardo Marroquim, Antonio Oliveira
Computer Graphics Forum , vol 33, Issue 1, pages 178-189, February 2014

WebcamPaperPen: A Low-Cost Graphics Tablet

Gustavo Pfeiffer, Ricardo Marroquim, Antonio Oliveira
Proceedings of the XXVII SIBGRAPI , Rio de Janeiro, August 2014

Forensic Facial Reconstruction Using Mesh Template Deformation with Detail Transfer over HRBF

Rafael Romeiro, Ricardo Marroquim, Claudio Esperança, Andreia Breda, Carlos Marcelo Figueredo
Proceedings of the XXVII SIBGRAPI , Rio de Janeiro, August 2014

Lazy Work Stealing for Continuous Hierarchy Traversal on Deformable Bodies

Vinícius da Silva, Claudio Esperança, Ricardo Marroquim
Proceedings of the 9th GRAPP , Lisbon, January 2014

2013

Parallel Image Segmentation Using Reduction-Sweeps On Multicore Processors and GPUs

Renato Farias, Ricardo Farias, Ricardo Marroquim, Esteban Clua
Proceedings of the XXVI SIBGRAPI , Arequipa, Peru, August 2013

2012

Flow-based local optimization for image-to-geometry projection

Matteo Dellepiane, Ricardo Marroquim, Marco Callieri, Paolo Cignoni, Roberto Scopigno
IEEE Transactions on Visualization and Computer Graphics (TVCG) , vol 18(3), pages 463-474, March 2012

Texturing 3D models from sequential photos

Ricardo Marroquim, Gustavo Pfeiffer, Felipe Carvalho, Antonio Oliveira
The Visual Computer , vol 28(10), pages 983-993

Enhanced Target Driven Smoke Morphing

Marcelo Caniato Renhe, Antonio Oliveira, Claudio Esperança, Ricardo Marroquim
Proceedings of the XXV SIBGRAPI , Ouro Preto, Aug-2012

2011

Texturing 3D objects with low geometric features

Ricardo Marroquim, Gustavo Pfeiffer, Felipe Carvalho, Antonio Oliveira
Proceedings of the XXIV SIBGRAPI , Maceió, Aug-2011

2010

Hardware-Assisted Projected Tetrahedra

André Maximo, Ricardo Marroquim, Ricardo Farias
Computer Graphics Forum , vol 29(3), pages 903-912
presented at: EuroVis'10

2009

Introduction to GPU Programming with GLSL

Ricardo Marroquim, André Maximo
IEEE Tutorials of SIBGRAPI 2009

2008

Point-based level-of-detail with object textures

André Maximo, Ricardo Marroquim, Claudio Esperança
ACM SIGGRAPH posters , Article No. 55

Efficient Image Reconstruction for Point-Based and Line-Based Rendering

Ricardo Marroquim, Martin Kraus, Paulo Roma Cavalcanti
Computer & Graphics , v. 32(2), p. 189-203

High Quality Image Reconstruction of Point Models

Ricardo Marroquim, Antonio Oliveira, Paulo Roma Cavalcanti
Proceedings of the XXI SIBGRAPI , Campo Grande

Volume and Isosurface Rendering with GPU-Accelerated Cell Projection

Ricardo Marroquim, André Maximo, Ricardo Farias, Claudio Esperança
Computer Graphics Forum , v. 27(1), p. 24-35

2007

Efficient Point-Based Rendering Using Image Reconstruction

Ricardo Marroquim, Martin Kraus, Paulo Roma Cavalcanti
IEEE/Eurographics Symposium on Point-Based Graphics (PBG) , Prague

GPU-Based Cell Projection for Large Structured Data Sets

André Maximo, Ricardo Marroquim, Ricardo Farias, Claudio Esperança
Proceedings of the II GRAPP , Barcelona

2006

Triangulações Adaptativas em Multirresolução para Objetos Heterogêneos

Ricardo Marroquim, Paulo Roma Cavalcanti
Boletim de Geociências da Petrobrás , v. 14(2), p. 327-345

High-Performance Volume Rendering for 3D Heart Visualization

André Maximo, Ricardo Marroquim, Claudio Esperança, Rodrigo Weber dos Santos, Cristiana Bentes, Ricardo Farias
Workshop on High Performance Computing in the Life Sciences - HPCLife , Ouro Preto-MG

GPU-Based Cell Projection for Interactive Volume Rendering

Ricardo Marroquim, André Maximo, Ricardo Farias, Claudio Esperança
Proceedings of the XIX SIBGRAPI , Manaus-AM

2005

Adaptive Multi-Resolution Triangulations Based on Physical Compression

Ricardo Marroquim, Paulo Roma Cavalcanti, Claudio Esperança, Luiz Velho
Communications in Numerical Methods in Engineering , volume 21, p. 571-580

2004

3D Adaptive Multi-Resolution Triangulations Based on Physical Compression

Ricardo Marroquim, Paulo Roma Cavalcanti, Claudio Esperança
Proceedings of the XXV CILAMCE , Recife-PE, Best Paper Award

Multi-Resolution Triangulations with Adaptation to the Domain Based on Physical Compression

Ricardo Marroquim, Paulo Roma Cavalcanti, Claudio Esperança, Luiz Velho
Proceedings of the XVII SIBGRAPI , Curitiba-PR, p.226-233