Daniel Simões Lopes, PhD




research overview

selected publications

Medical Interfaces
vr education


A new haptic operative dentistry virtual reality simulator
Computer Methods and Programs in Biomedicine, 2022

pdf

P. Rodrigues, A. Esteves, J. Botelho, V. Machado, C. Zagalo, E.R. Zorzal, J.J. Mendes, D.S. Lopes, Usability, acceptance, and educational usefulness study of a new haptic operative dentistry virtual reality simulator, Computer Methods and Programs in Biomedicine, Volume 221, June 2022, 106831, DOI: 10.1016/j.cmpb.2022.106831

VR Shape Modeling Interfaces
design in virtual reality


Exploring and Selecting Supershapes in Virtual Reality with Line, Quad, and Cube Shaped Widgets
IEEE VR 2022

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F. Nicolau, J. Gielis, A.L. Simeone, D.S. Lopes, Exploring and Selecting Supershapes in Virtual Reality with Line, Quad, and Cube Shaped Widgets, IEEE Conference on Virtual Reality and 3D User Interfaces, 2022, pp. 21-28, DOI: 10.1109/VR51125.2022.00019

video

Empathic Computing
augmented emotional sharing


Exploring the Effects of an Augmented Reality Cue for Emotional Sharing Across Three Face-to-Face Tasks
IEEE VR 2022

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A. Valente, D.S. Lopes, N. Nunes, A. Esteves, Empathic AuRea: Exploring the Effects of an Augmented Reality Cue for Emotional Sharing Across Three Face-to-Face Tasks, IEEE Conference on Virtual Reality and 3D User Interfaces, 2022. DOI: 10.1109/VR51125.2022.00034

video

Medical Interfaces
immersive radiology


Controlling camera movement in VR colonography
Virtual Reality, 2022

pdf

S.F. Paulo, D. Medeiros, D.S. Lopes, J. Jorge, Controlling camera movement in VR colonography, Virtual Reality, 2022. DOI: 10.1007/s10055-021-00620-4

Motion Processing
motion envelopes


Motion Envelopes: Unfolding Longitudinal Rotation Data from Walking Stick-Figures
Computer Methods in Biomechanics and Biomedical Engineering, 2021

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I.F. Roupa, S.B. Gonçalves, M.T. da Silva, R.R. Neptune, D.S. Lopes, Motion Envelopes: Unfolding Longitudinal Rotation Data from Walking Stick-Figures, Computer Methods in Biomechanics and Biomedical Engineering, 2021. DOI: 10.1080/10255842.2021.2016722

Medical Interfaces
augmented training


Augmenting the Training Space of an Epidural Needle Insertion Simulator with HoloLens
Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, 2021

pdf

D. da Silva, C. Costa, N. da Silva, I. Ventura, F. Leite, D.S. Lopes, Augmenting the Training Space of an Epidural Needle Insertion Simulator with HoloLens, Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, 2021. DOI: 10.1080/21681163.2021.2012833

video

Mobile AR
character posing


From A-Pose to AR-Pose: Animating Characters in Mobile AR
SIGGRAPH 2021 - Appy Hour

pdf

A. Valente, A. Esteves, D.S. Lopes, From A-Pose to AR-Pose: Animating Characters in Mobile AR. In Special Interest Group on Computer Graphics and Interactive Techniques Conference Appy Hour (SIGGRAPH '21 Appy Hour), August 09-13, 2021, Virtual Event, USA. ACM, New York, NY, USA 2 Pages. https://doi.org/10.1145/3450415.3464401

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Computer Graphics
non-photorealistic rendering


To Splat Straight with Crooked Points
Eurographics 2021 - Posters

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R.K. dos Anjos, D.S. Lopes, To Splat Straight with Crooked Points: Rendering Noisy Meshes and Point Clouds using Coherent Tangent Vector Fields, In Eurographics 2021 - Posters, Virtual Event, Vienna, Austria, 2021, 2 Pages. DOI:10.2312/egp.20211028

video

Cross-Reality
pinpointing


Exploring Bi-Directional Pinpointing Techniques for Cross-Reality Collaboration
IEEE VR 2021 - WEVR Workshop

pdf

P. Pazhayedath, P. Belchior, R. Prates, F. Silveira, D.S. Lopes, R. Cools, A. Esteves, A.L. Simeone, Exploring Bi-Directional Pinpointing Techniques for Cross-Reality Collaboration, 2021 IEEE Conference on Virtual Reality and 3D User Interfaces Abstracts and Workshops (VRW), 2021, pp. 264-270, doi: 10.1109/VRW52623.2021.00055

video

Medical Interfaces
augmented surgery


Breast cancer surgery with augmented reality
The Breast, 2021

pdf

P.F. Gouveia, J. Costa, P. Morgado, R. Kates, D. Pinto, C. Mavioso, J. Anacleto, M. Martinho, D.S. Lopes, A.R. Ferreira, V. Vavourakis, M. Hadjicharalambous, M.A. Silva, N. Papanikolaou, C. Alves, F. Cardoso, M.J. Cardoso, Breast cancer surgery with augmented reality, The Breast, Volume 56, P14-17, April 01, 2021. DOI: 10.1016/j.breast.2021.01.004

Medical Interfaces
vr education


An immersive educational tool for dental implant placement: A study on user acceptance
International Journal of Medical Informatics, 2021

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E.R. Zorzal, S.F. Paulo, P. Rodrigues, J.J. Mendes, D.S. Lopes, An immersive educational tool for dental implant placement: A study on user acceptance, International Journal of Medical Informatics, Volume 146, February 2021, 104342. DOI: 10.1016/j.ijmedinf.2020.104342

video

Medical Interfaces
interactive rehab


Winning compensations: Adaptable gaming approach for upper limb rehabilitation sessions
Journal of Biomedical Informatics, 2020

pdf

T. Alves, H. Carvalho, D.S. Lopes, Winning compensations: Adaptable gaming approach for upper limb rehabilitation sessions based on compensatory movements, Journal of Biomedical Informatics, 108, 1035018:4, 2020. DOI: 10.1016/j.jbi.2020.103501

Medical Interfaces
augmented training


PIÑATA: Pinpoint insertion of intravenous needles via augmented reality training assistance
Computerized Medical Imaging and Graphics, 2020

pdf

H.C.M. Mendes, C.I.A.B. Costa, N.A. da Silva, F.P. Leite, A. Esteves, D.S. Lopes, PIÑATA: Pinpoint insertion of intravenous needles via augmented reality training assistance, Computerized Medical Imaging and Graphics, 82, 101731, 2020. DOI: 10.1016/j.compmedimag.2020.101731

video

Medical Interfaces
augmented surgery


Laparoscopy with augmented reality adaptations
Journal of Biomedical Informatics, 2020

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E.R. Zorzal, J.M.C. Gomes, M. Sousa, P. Belchior, P.G. da Silva, N. Figueiredo, D.S. Lopes, J. Jorge, Laparoscopy with augmented reality adaptations, Journal of Biomedical Informatics, 107, 103463, 2020. DOI: 10.1016/j.jbi.2020.103463

video

Computational Design
shape analysis


The Hip Joint as an Egg Shape: A Comprehensive Study of Femoral and Acetabular Morphologies
Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, 2020

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D.S. Lopes, S.M. Pires, C.D. Barata, V.V. Mascarenhas, J.A. Jorge, The Hip Joint as an Egg Shape: A Comprehensive Study of Femoral and Acetabular Morphologies, Computer Methods in Biomechanics and Biomedical Engineering: Imaging & Visualization, 8:4, Pages 411–425, 2020. DOI: 10.1080/21681163.2019.1709902

Information Visualization
motion visualization


Visual Biofeedback for Upper Limb Compensatory Movements
EuroVis 2019 - Posters

pdf

D.S. Lopes, A. Faria, A. Barriga, S. Caneira, F. Baptista, C. Matos, A.F. Neves, L. Prates, A.M Pereira, H. Nicolau, Visual Biofeedback for Upper Limb Compensatory Movements: A Preliminary Study Next to Rehabilitation Professionals, In Eurographics 2019 - Posters Track, DOI: 10.2312/eurp.20191139

Medical Interfaces
digital anatomy


Anatomy Studio: a Tool for Virtual Dissection Through Augmented 3D Reconstruction
Computers & Graphics, 2019

pdf

E.R. Zorzal, M. Sousa, D. Mendes, R.F. dos Anjos, D. Medeiros, S.F. Paulo, P. Rodrigues, J.J. Mendes, V. Delmas, J.-F. Uhl, J. Mogorrón, J.A. Jorge, D.S. Lopes, Anatomy Studio: a Tool for Virtual Dissection Through Augmented 3D Reconstruction, Computers & Graphics, 85, Pages 74–84, 2019. DOI: 10.1016/j.cag.2019.09.006

video

Medical Interfaces
touchless interface


Touchless interaction with medical images based on 3D hand cursors supported by single-foot input
Journal of Biomedical Informatics, 2019

pdf

S.F. Paulo, F. Relvas, H. Nicolau, Y. Rekik, V. Machado, J. Botelho, J.J. Mendes, L. Grisoni, J.A. Jorge, D.S. Lopes, Touchless interaction with medical images based on 3D hand cursors supported by single-foot input: A case study in dentistry, Journal of Biomedical Informatics, Volume 100, 103316, 2019. DOI: 10.1016/j.jbi.2019.103316

video

Gestural Input
touchless interface


FEETICHE: FEET Input for ContactlessHand gEsture Interaction
VRCAI 2019

pdf

D.S. Lopes, F. Relvas, S. Paulo, Y. Rekik, L. Grisoni, J.A. Jorge. 2019. FEETICHE: FEET Input for ContactlessHand gEsture Interaction. In The 17th International Conference on VirtualReality Continuum and its Applications in Industry (VRCAI '19), November 14–16, 2019, Brisbane, QLD, Australia. ACM, New York, NY, USA, 10 pages. DOI: 10.1145/3359997.3365704

video

Computational Design
design in virtual reality


Usability studies on building early stage architectural models in virtual reality
Automation in Construction, 2019

pdf

R. de Klerk, A.M. Duarte, D.P. Medeiros, J.P. Duarte, J.A. Jorge, D.S. Lopes, Usability studies on building early stage architectural models in virtual reality, Automation in Construction, 103, Pages 104–116, 2019. DOI: 10.1016/j.autcon.2019.03.009

video

Computational Design
shape analysis


On a "Columbus' Egg": Modeling the Shape of Asymptomatic, Dysplastic and Impinged Hip Joints
Medical Engineering & Physics, 2018

pdf

D.S. Lopes, S.M. Pires, V.V. Mascarenhas, M.T. Silva, J.A. Jorge, On a "Columbus' Egg": Modeling the Shape of Asymptomatic, Dysplastic and Impinged Hip Joints, Medical Engineering & Physics, 59, Pages 50–55, 2018. DOI: 10.1016/j.medengphy.2018.07.001

Computer Graphics
motion processing


Contactless monitoring of breathing patterns and respiratory rate at the pit of the neck
Journal of Sensors, 2018

pdf

C. Massaroni, D.S. Lopes, D. Lo Presti, E. Schena, S. Silvestri, Contactless monitoring of breathing patterns and respiratory rate at the pit of the neck: a single camera approach, Journal of Sensors, Volume 2018, Article ID 4567213, 13 pages, 2018. DOI: 10.1155/2018/4567213

Medical Interfaces
immersive radiology


Interaction Techniques for Immersive CT Colonography: A Professional Assessment
MICCAI 2018

pdf

D.S. Lopes, D. Medeiros, S.F. Paulo, P.B. Borges, V. Nunes, V. Mascarenhas, M. Veiga, J.A. Jorge, Interaction Techniques for Immersive CT Colonography: A Professional Assessment, In: Frangi AF, Schnabel JA, Davatzikos C, Alberola-Lopez C, Fichtinger G. (eds) Medical Image Computing and Computer Assisted Intervention - MICCAI 2018. Lecture Notes in Computer Science, 11071, Pages 629–637, Springer, Cham, 2018. DOI: 10.1007/978-3-030-00934-2_70

video

Human-Computer Interaction
graphical user interfaces


Assessing the usability of tile-based interfaces to visually navigate 3-D parameter domains
International Journal of Human-Computer Studies, 2018

pdf

D.S. Lopes, R.K. dos Anjos, J.A. Jorge, Assessing the usability of tile-based interfaces to visually navigate 3-D parameter domains, International Journal of Human-Computer Studies, 118, Pages 1–13, 2018. DOI: 10.1016/j.ijhcs.2018.05.005

video

Medical Interfaces
volume graphics


Explicit design of transfer functions for volume-rendered images
The Visual Computer, 2018

pdf

D.S. Lopes, P.F. Parreira, A.R. Mendes, V.M. Pires, S.F. Paulo, C.S. Sousa, J.A. Jorge, Explicit design of transfer functions for volume-rendered images by combining histograms, thumbnails and sketch-based interaction, The Visual Computer, 34, Pages 1713–1723, 2018. DOI: 10.1007/s00371-017-1448-8

video

Medical Interfaces
touchless interface


On the utility of 3D hand cursors to explore medical volume datasets with a touchless interface
Journal of Biomedical Informatics, 2017

pdf

D.S. Lopes, P.F. Parreira, S.F. Paulo, V. Nunes, P.A. Rego, M.C. Neves, P.S. Rodrigues, J.A. Jorge, On the utility of 3D hand cursors to explore medical volume datasets with a touchless interface, Journal of Biomedical Informatics, 72, Pages 140–149, 2017. DOI: 10.1016/j.jbi.2017.07.009

video

Computer Graphics
non-photorealistic rendering


Stroke-based splatting: an efficient multi-resolution pointcloud visualization technique
The Visual Computer, 2017

pdf

R.K. dos Anjos, C.S. Ribeiro, D.S. Lopes, J.M. Pereira, Stroke-based splatting: an efficient multi-resolution pointcloud visualization technique, The Visual Computer, 33(9), Pages 1–15, 2017. DOI: 10.1007/s00371-017-1420-7

video

Computer Graphics
collision detection


A benchmark study on accuracy-controlled distance calculation between superellipsoids and superovoids
Mechanism and Machine Theory, 2017

pdf

A.A. Gonçalves, A. Bernardino, J.A. Jorge, D.S. Lopes, A benchmark study on accuracy-controlled distance calculation between superellipsoid and superovoid contact geometries, Mechanism and Machine Theory, 115, Pages 77–96, 2017. DOI: 10.1016/j.mechmachtheory.2017.04.008

video code app

Computer Graphics
molecular graphics


Geometric detection algorithms for cavities on protein surfaces in molecular graphics: a survey
Computer Graphics Forum, 2017

pdf

T. Simões, D.S. Lopes, S. Dias, F. Fernandes, J. Pereira, J. Jorge, C. Bajaj, A. Gomes, Geometric detection algorithms for cavities on protein surfaces in molecular graphics: a survey, Computer Graphics Forum, 36, Pages 643–683, 2017. DOI: 10.1111/cgf.13158

Medical Interfaces
immersive radiology


VRRRRoom: Virtual Reality for radiologists in the reading room
CHI 2017

pdf

M. Sousa, D. Mendes, S. Paulo, N. Matela, J. Jorge, D.S. Lopes, VRRRRoom: Virtual Reality for radiologists in the reading room, Proceedings of the 35th Annual ACM Conference on Human Factors in Computing Systems (CHI 2017), New York: ACM Press, 2017. DOI: 10.1145/3025453.3025566

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Computational Design
interactive geomodeling


Expeditious Illustration of Layer-Cake Models On and Above a Tactile Surface
Computers & Geosciences, 2016

pdf

D.S. Lopes, D. Mendes, M. Sousa, J. Jorge, Expeditious Illustration of Layer-Cake Models On and Above a Tactile Surface, Computers & Geosciences, 90, Part A, Pages 1–9, 2016. DOI: 10.1016/j.cageo.2016.02.009

video

Computer Graphics
collision detection


A superellipsoid-plane model for simulating foot-ground contact during human gait
Computer Methods in Biomechanics and Biomedical Engineering, 2016

pdf

D.S. Lopes, R.R. Neptune, J.A. Ambrósio, and M.T. Silva, A superellipsoid-plane model for simulating foot-ground contact during human gait, Computer Methods in Biomechanics and Biomedical Engineering, 19 (9): 954-963, 2016. DOI: 10.1080/10255842.2015.1081181

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Computational Design
shape analysis


Shape Analysis of the Femoral Head
Journal of Biomechanical Engineering, 2015

pdf

D.S. Lopes, R.R. Neptune, A.A. Gonçalves, J.A. Ambrósio, and M.T. Silva, Shape Analysis of the Femoral Head: A Comparative Study between Spherical, (Super)Ellipsoidal and (Super)Ovoidal Shapes, Journal of Biomechanical Engineering, 137(11): 114504(1-8), 2015. DOI: 10.1115/1.4031650

Computer Graphics
implicit surfaces


A Survey on Implicit Surface Polygonization
ACM Computing Surveys, 2015

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B.R. de Araújo, D.S. Lopes, P. Jepp, J.A. Jorge, and B. Wyvill, A Survey on Implicit Surface Polygonization, ACM Computing Surveys, 47(4): Article 60, 39 pages, 2015. DOI: 10.1145/2732197

Computational Design
geometric design


A geometric tool to find orthogonal vectors based on the Householder transformation
Computer-Aided Design, 2013

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D.S. Lopes, M.T. Silva, and J.A. Ambrósio, Tangent vectors to a 3-D surface normal: A geometric tool to find orthogonal vectors based on the Householder transformation, Computer-Aided Design, 45(3): 683 - 694, 2013. DOI: 10.1016/j.cad.2012.11.003

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Computer Graphics
collision detection


A mathematical framework for contact detection between quadric and superquadric surfaces
Multibody System Dynamics, 2010

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D.S. Lopes, M.T. Silva, J.A. Ambrósio, and P. Flores, A mathematical framework for contact detection between quadric and superquadric surfaces, Multibody System Dynamics, 24(3): 255 - 280, 2010. DOI: 10.1007/s11044-010-9220-0

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Computational Design
fem/anatomical modeling


Finite element simulations of a hip joint with femoroacetabular impingement
Computer Methods in Biomechanics and Biomedical Engineering, 2012

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J.P. Jorge, F.M.F. Simões, E.B. Pires, P.A. Rego, D.G. Tavares, D.S. Lopes, and A. Gaspar, Finite element simulations of a hip joint with femoroacetabular impingement, Computer Methods in Biomechanics and Biomedical Engineering, 17(11): 1275 - 1284, 2012. DOI: 10.1080/10255842.2012.744398

tutorial

Computational Design
fem/anatomical modeling


Finite element studies of the mechanical behaviour of the diaphragm in normal and pathological cases
Computer Methods in Biomechanics and Biomedical Engineering, 2011

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M.P.M. Pato, N.G.S. Santos, E.B. Pires, P. Areias, M. de Carvalho, S. Pinto, and D.S. Lopes, Finite element studies of the mechanical behaviour of the diaphragm in normal and pathological cases, Computer Methods in Biomechanics and Biomedical Engineering, 14(6): 505-513, 2011. DOI: 10.1080/10255842.2010.483683

Computational Design
fem/anatomical modeling


Bone remodelling analysis of a bovine femur for a veterinary implant design
Computer Methods in Biomechanics and Biomedical Engineering, 2009

pdf

L. B. Rodrigues, D.S. Lopes, J. Folgado, P.R. Fernandes, E.B. Pires, E.B. Las Casas, and R.R. Faleiros, Bone remodelling analysis of a bovine femur for a veterinary implant design, Computer Methods in Biomechanics and Biomedical Engineering, 12(6): 683 - 690, 2009. DOI: 10.1080/10255840902865641

Computational Design
fem/anatomical modeling


A finite element model to simulate femoral fractures in calves
Veterinary Surgery, 2012

pdf

L.B. Rodrigues, E.B. Las Casas, D.S. Lopes, J. Folgado, P.R. Fernandes, E.B. Pires, G.E.S. Alves, and R.R. Faleiros, A finite element model to simulate femoral fractures in calves: testing different polymers for intramedullary interlocking nails, Veterinary Surgery, 41(7): 838 - 844, 2012. DOI: 10.1111/j.1532-950X.2012.01032.x

theses

PhD Thesis
Computational Engineering

D.S. Lopes, Smooth convex surfaces for modeling and simulating multibody systems with compliant contact elements, Ph.D. Thesis, Instituto Superior Técnico, Universidade de Lisboa, 2013.

MSc Thesis
Biomedical Engineering

code

D.S. Lopes, Geometric Modeling of Human Structures Based on CT Data-a Software Pipeline, Final Course Project Thesis, Instituto Superior Técnico, Universidade Técnica de Lisboa, 2006.

book

Springer
Digital Anatomy

Jean-François Uhl, Joaquim Jorge, Daniel Simões Lopes, Pedro F. Campos, Digital Anatomy: Applications of Virtual, Mixed and Augmented Reality, Human-Computer Interaction Series, Springer-Verlag London Ltd., 391 pages, March 2021, ISBN: 978-3-030-61904-6. DOI: 10.1007/978-3-030-61905-3

magazine articles & social media

International Magazine
IT-MEDEX Project

D.S. Lopes, Medical interfaces of the future, Impact, Volume 2017, Number 10, November 2017, pp. 76-77(2). DOI: 0.21820/23987073.2017.10.76

International Magazine
immersive radiology

Paden Shorey, Audrey Girouard, Sang Ho Yoon, Yunbo Zhang, Ke Huo, Karthik Ramani, Mauricio Sousa, Daniel Mendes, Soraia Paulo, Nuno Matela, Joaquim Jorge, Daniel Simões Lopes, Dirk Wenig, Johannes Schöxning, Alex Olwal, Mathias Oben, and Rainer Malaka, Demo hour, interactions 24, 6 (October 2017), 8-11. DOI: 10.1145/3143318

National Magazine
IT-MEDEX Project

D.S. Lopes, Virtualmente Real: O Futuro do Radiodiagnóstico, Entrevista concedida à Revista Frontal sobre Realidade Virtual aplicada a cenários médicos, Revista Frontal, Associação de Estudantes da NOVA Medical School, edição 47, Ano 31, Dezembro 2017.


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