Esta seção apresenta a lista das publicações resultantes de nossas atividades de pesquisa, incluindo artigos em periódicos revisados por pares e resumos de conferências e workshops. Estes trabalhos refletem o rigor científico e as contribuições intelectuais de nossa equipe, disseminando descobertas para as comunidades acadêmica e profissional. Cada item inclui um link para os textos completos ou para as páginas das editoras.
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2025
Exploring the Velocity-Spreading Factor and its Consequences Through Dynamic Ray-Tracing in General Anisotropic Media
Tiago A. A. Coimbra, Rodrigo Bloot, Jorge H. Faccipieri Jr.
Differential Equations and Dynamical Systems
A framework based on diffraction traveltime parameters for estimating the orientation of symmetry axes in transversely isotropic media
Rodrigo Bloot, Jorge H. Faccipieri Jr., Tiago A. A. Coimbra
19th International Congress of the Brazilian Geophysical Society
Prestack Diffraction Separation in the Deep Waters of Bonaire Basin, Venezuela
Dany Rueda Serrano, Tainá Souza, Jorge H. Faccipieri Jr.
19th International Congress of the Brazilian Geophysical Society
Common Reflection Point Regularization: Application in a 2D land dataset from Potiguar basin
Tainá Souza, Dany Rueda Serrano, Jorge H. Faccipieri Jr.
19th International Congress of the Brazilian Geophysical Society
Campos Synthetic Velocity Model
Dany Rueda Serrano, Alexandre W. Camargo, Jorge H. Faccipieri Jr.
19th International Congress of the Brazilian Geophysical Society
Spectrally Penalized Dynamic Time-Warping for Improved Trace Alignment in Time-Lapse Seismic Data
Alexandre W. Camargo, Tiago A. A. Coimbra, Jorge H. Faccipieri Jr.
19th International Congress of the Brazilian Geophysical Society
Improved Seismic Data Regularization in OBN Environments Using a CRP-Informed Traveltime Operator
Jorge H. Faccipieri Jr., Rodrigo Bloot, Tiago A. A. Coimbra
19th International Congress of the Brazilian Geophysical Society
2024
Quantifying anisotropy parameters in weakly anisotropic media through diffraction traveltime parameter clusters
Tiago A. A. Coimbra, Rodrigo Bloot, Alexandre W. Camargo, Jorge H. Faccipieri Junior
Brazilian Journal of Geophysics
Hybrid GDS-Cache Approach to Boost IO throughput in 3D Seismic Processing
Caian Benedicto, Nicholas T. Okita, Fabio Bronzati, João Paulo Navarro, Jorge H. Faccipieri Junior
85th EAGE Conference & Exhibition
Ultra-fast diffraction separation in the five-dimensional domain
Nicholas T. Okita, Tiago A. A. Coimbra, Jorge H. Faccipieri Junior
85th EAGE Conference & Exhibition
2023
Ultra-fast traveltime parameters search by a coevolutionary optimization approach using graphics processing units
José Ribeiro Neto, Nicholas T. Okita, Tiago A. A. Coimbra, Jorge H. Faccipieri Junior
arXiv: Geophysics
Exploring velocity-spreading factor and consequences through dynamic ray-tracing in general anisotropic media: A comprehensive tutorial
Tiago A. A. Coimbra, Rodrigo Bloot, Jorge H. Faccipieri Junior
arXiv: Geophysics
Comparisons between FO-CRS and OCT stacking operators by quality measures
Tiago A. A. Coimbra, Nicholas T. Okita, Jorge H. Faccipieri Junior
18th International Congress of the Brazilian Geophysical Society
Time-lapse analysis using the wave-equation time migration
Alexandre W. Camargo, Tiago A. A. Coimbra, Jorge H. Faccipieri Junior
18th International Congress of the Brazilian Geophysical Society
Study of anisotropy characterization in weakly anisotropic VTI media through diffraction traveltime parameter clusters
Tiago A. A. Coimbra, Rodrigo Bloot, Jorge H. Faccipieri Junior
18th International Congress of the Brazilian Geophysical Society
2022
Increasing IO throughput in seismic with NFS over RDMA and NVIDIA GPUDirect Storage
Caian Benedicto, Nicholas Torres Okita, Jorge H. Faccipieri Junior
3rd EAGE Workshop on HPC in Americas
2021
Offset-continuation-trajectory (OCT) data regularization to a 2D ocean bottom node (OBN): Full-wave inversion application
Alexandre W. Camargo, José Ribeiro Neto, Tiago A. A. Coimbra, Gustavo B. Ignácio Dias, Martin Tygel
Revista Brasileira de Geofísica
High-performance computing strategies for seismic-imaging software on the cluster and cloud-computing environments
Nicholas T. Okita, Alexandre W. Camargo, José Ribeiro Neto, Tiago A. A. Coimbra, Caian Benedicto, Jorge H. Faccipieri Junior
Geophysical Prospecting
Cloud-computing approach for an environmental, social, and corporate governance focus in universities and businesses
Nicholas T. Okita, Tiago A. A. Coimbra
First Break
Faster and cheaper: How graphics processing units on spot-market instances minimize turnaround time and budget
Nicholas T. Okita, Tiago A. A. Coimbra
Interpretation
Using adaptive differential evolution algorithm to improve parameter estimation in seismic processing: extended results
José Ribeiro Neto, Tiago A. A. Coimbra, Nicholas T. Okita, Gustavo B. Ignácio Dias, Martin Tygel
Revista Brasileira de Geofísica
Recovering elevation in seismic datasets using Google Earth: A case study of Parnaíba Basin
Dany R. Serrano, Tainá Souza, Jorge H. Faccipieri Junior, Martin Tygel
First Break
2020
Extending the usage of graphics processing units on the cloud for cost savings on seismic data regularization
Nicholas T. Okita, Tiago A. A. Coimbra, José Ribeiro, Martin Tygel
Revista Brasileira de Geofísica
Time-migration velocity estimation using Fréchet derivatives based on nonlinear kinematic migration/demigration solvers
Hao Zhao, Anders U. Waldeland, Dany Rueda Serrano, Martin Tygel, Einar Iversen
Studia Geophysica et Geodaetica
Fault-tolerant wave propagation assisted by independent checkpointing strategy
Alexandre W. Camargo, Nicholas T. Okita, José Ribeiro, Caian Benedicto, Tiago A. A. Coimbra, Jorge H. Faccipieri Junior, Martin Tygel
82nd EAGE Conference & Exhibition
Highly scalable full-waveform inversion on the cloud using graphics processing units
Nicholas T. Okita, Alexandre W. Camargo, José Ribeiro, Caian Benedicto, Tiago A. A. Coimbra, Jorge H. Faccipieri Junior, Martin Tygel
82nd EAGE Conference & Exhibition
Boundary saving and checkpointing: a hybrid memory strategy for reverse time migration
José Ribeiro, Nicholas T. Okita, Alexandre W. Camargo, Caian Benedicto, Tiago A. A. Coimbra, Jorge H. Faccipieri Junior, Martin Tygel
82nd EAGE Conference & Exhibition
2019
Stretch-free generalized normal moveout correction
Jorge H. Faccipieri Junior, Tiago A. A. Coimbra, Rodrigo Bloot
Geophysical Prospecting
Fast estimation of pre-stack Common Reflection Surface parameters
Anders U. Waldeland, Tiago A. A. Coimbra, Jorge H. Faccipieri Jr., Anne H. Schistad Solberg, Leiv-J. Gelius
Geophysical Prospecting
3D Pre-stack Fourier Mixed-Domain (FMD) depth migration for VTI media with large lateral contrasts
Hao Zhao, Leiv-J. Gelius, Martin Tygel, E. Harris Nilsen, A. Kjelsrud Evensen
Journal of Applied Geophysics
A Two-Phase Approach for Full Waveform Inversion using Constrained Optimization
Alexandre W. Camargo, Lucio Santos
16th International Congress of the Brazilian Geophysical Society
Full-wave inversion (FWI) to a 2D-ocean-bottom node (OBN) dataset after offset-continuation-trajectory (OCT) data regularization
Alexandre W. Camargo, José Ribeiro, Tiago A. A. Coimbra, Gustavo B. D. Ignacio, Martin Tygel
16th International Congress of the Brazilian Geophysical Society
Automatic detection of diffraction-apex using fully convolutional networks
Thamaris Coelho, Lucas M. Araújo, Tiago A. A. Coimbra, Martin Tygel, Sandra Ávila, Edson Borin
16th International Congress of the Brazilian Geophysical Society
An analysis of the impact of Virtual Machines allocation on the cloud – The case of Full Waveform Inversion on Amazon Web Services
Willian M. Hayashida, Alexandre W. Camargo, Charles B. Rodamilans, Tiago A. A. Coimbra, José Ribeiro, Caian Benedicto, Martin Tygel, Edson Borin
16th International Congress of the Brazilian Geophysical Society
Using graphics processing units on the cloud to accelerate and reduce processing cost of parameters estimation of seismic processing algorithm
Nicholas T. Okita, Tiago A. A. Coimbra, José Ribeiro, Martin Tygel
16th International Congress of the Brazilian Geophysical Society
A heuristic to optimize the execution cost of distributed seismic processing programs on the cloud
Nicholas T. Okita, Tiago A. A. Coimbra, Martin Tygel, Edson Borin
SEG Technical Program
Optimizing the Execution Costs of High-Performance Geophysics Software on the Cloud
Nicholas T. Okita, Tiago A. Coimbra, Charles B. Rodamilans, Martin Tygel, Edson Borin
81st EAGE Conference and Exhibition
Using Adaptive Differential Evolution algorithm to improve parameter estimation in seismic processing
José Ribeiro, Nicholas T. Okita, Tiago A. A. Coimbra, Gustavo B. Ignacio, Martin Tygel
16th International Congress of the Brazilian Geophysical Society
Accelerating seismic parameter estimation with Adaptive Differential Evolution (JADE) and graphics processing units (GPUs)
José Ribeiro, Nicholas T. Okita, Tiago A. Coimbra, Martin Tygel
4th EAGE Workshop on High Performance Computing for Upstream
Construction of 3D and 5D D-volumes in prestack domain
João H. Speglich, Jorge H. Faccipieri Jr., Nicholas T. Okita, Tiago A. Coimbra, Martin Tygel
SEG Technical Program 2019
Enriching synthetic data with real noise using Neural Style Transfer
Naomi Takemoto, Lucas M. Araújo, Tiago A. A. Coimbra, Martin Tygel, Sandra E. F. Ávila, Edson Borin
16th International Congress of the Brazilian Geophysical Society
Análise de Desempenho do Traçamento de Raios Utilizando Nuvem Computacional e o Modelo SPITS
Marcelo Vilela, Gustavo B. D. Ignacio, Nicholas T. Okita, Edson Borin
ERAD SP
2018
Common Reflection Surface method in weakly anisotropic VTI media
Rodrigo Bloot, Tiago A. A. Coimbra, Jorge H. Faccipieri Jr., Martin Tygel
Geophysics
Enhancement of diffractions in pre-stack domain by means of a finite-offset double-square-root traveltime
Tiago A. A. Coimbra, Jorge H. Faccipieri Jr., João H. Speglich, Leiv-J. Gelius, Martin Tygel
Geophysics
Detecção de estruturas em dados sísmicos com Deep Learning
Lucas M. Araujo, Fabíola M. C. Oliveira, Jorge H. Faccipieri Jr., Tiago A. A. Coimbra, Sandra Ávila, Martin Tygel, Edson Borin
Boletim SBGf
Análise de Custo da Nuvem Computacional para a Execução de Algoritmos no Processamento Sísmico
Nicholas T. Okita, Tiago A. A. Coimbra, Edson Borin
ERAD-SP
Using SPITS to optimize the cost of high-performance geophysics processing on the cloud
Nicholas T. Okita, Tiago A. A. Coimbra, Charles B. Rodamilans, Martin Tygel, Edson Borin
EAGE HPC Workshop
Otimização automática do custo de processamento de programas SPITS na AWS
Nicholas T. Okita, Charles B. Rodamilans, Tiago A. A. Coimbra, Martin Tygel, Edson Borin
XIX Simpósio em Sistemas Computacionais de Alto Desempenho
Uma análise de custo e desempenho do modelo meteorológico BRAMS na nuvem computacional Azure
Willian Hayashida, Charles B. Rodamilans, Martin Tygel, Edson Borin
WSCAD-WIC
Time-migration Tomography based on Reflection Slopes in Pre-stack Time-migrated Seismic Data
Hao Zhao, Anders U. Waldeland, Diego Rueda Serrano, Martin Tygel, Eirik Iversen
80th EAGE Conference and Exhibition
2017
Fast and robust Common Reflection Surface (CRS) parameter estimation
Anders U. Waldeland, Hao Zhao, Jorge H. Faccipieri Jr., Anne H. Solberg, Leiv-J. Gelius
Geophysics
Harvesting the computational power of heterogeneous clusters to accelerate seismic processing
Caian Benedicto, Ian L. Rodrigues, Martin Tygel, Mauricio Breternitz, Edson Borin
15th International Congress of the Brazilian Geophysical Society
The CRS Method for Weakly Anisotropic VTI Media
Rodrigo Bloot, Tiago A. A. Coimbra, Jorge H. Faccipieri Jr., Martin Tygel
15th International Congress of the Brazilian Geophysical Society
2016
Common-reflection-point time migration
Tiago A. A. Coimbra, Jorge H. Faccipieri Jr., Dany S. Rueda, Martin Tygel
Studia Geophysica et Geodaetica
Offset-continuation stacking: Theory and proof of concept
Tiago A. A. Coimbra, Amélia Novais, Jörg Schleicher
Geophysics
Stacking apertures and estimation strategies for reflection and diffraction enhancement
Jorge H. Faccipieri Jr., Tiago A. A. Coimbra, Leiv-J. Gelius, Martin Tygel
Geophysics
Migration velocity analysis using residual diffraction moveout: a real-data example
Jaime A. C. Gonzalez, José J. S. de Figueiredo, Tiago A. Coimbra, Jörg Schleicher, Amélia Novais
Journal of Geophysics and Engineering
PY-PITS: A Scalable Python Runtime System for the Computation of Partially Idempotent Tasks
Edson Borin, Caian Benedicto, Ian L. Rodrigues, F. Pisani, Martin Tygel, Mauricio Breternitz
5th Workshop on Parallel Programming Models
2015
Migration-velocity building in time and depth from 3D (2D) Common-Reflection-Surface (CRS) stacking – theoretical framework
Leiv-J. Gelius, Martin Tygel
Studia Geophysica et Geodaetica
Prestack time-migration velocity analysis using remigration trajectories
Henrique B. Santos, Tiago A. A. Coimbra, Jörg Schleicher, Amélia Novais
Geophysics
Efficient and Fault Tolerant Computation of Partially Idempotent Tasks
Edson Borin, Ian L. Rodrigues, Alber T. Novo, João D. Sacramento, Mauricio Breternitz, Martin Tygel
14th International Congress of the Brazilian Geophysical Society
2014
Implementation aspects of eigendecomposition-based high-resolution velocity spectra
Tiago Barros, Renato Lopes, Martin Tygel
Geophysical Prospecting
Parameter estimation from non-hyperbolic reflection traveltimes for large aperture common midpoint gathers
Hervé Perroud, Rafael Krummenauer, Martin Tygel, Renato Lopes
Near Surface Geophysics
True-amplitude single-stack redatuming
Matheus F. Pila, Jörg Schleicher, Amélia Novais, Tiago A. A. Coimbra
Journal of Applied Geophysics
Image-ray Tomography
Sergius Dell, Dirk Gajewski, Martin Tygel
Geophysical Prospecting
Prestack Migration Velocity Analysis Using Time-remigration Trajectories
Tiago A. A. Coimbra, Henrique B. Santos, Jörg Schleicher, Amélia Novais
76th EAGE Conference and Exhibition
A CRS-based Heterogeneity Attribute
Jorge H. Faccipieri Jr., Tiago A. A. Coimbra, Leiv-J. Gelius, Martin Tygel
76th EAGE Conference and Exhibition Workshops, 2014
Common-Refection-Surface (CRS) Stacking with Diffraction Moveouts of Varying Aperture
Jorge H. Faccipieri Jr., Tiago A. A. Coimbra, Martin Tygel, L.J. Gelius
76th EAGE Conference and Exhibition Workshops
2013
2D common-offset traveltime based diffraction enhancement and imaging
Endrias A. Asgedom, Martin Tygel, Leiv-J. Gelius
Geophysical Prospecting
Recovering diffractions in CRS stacked sections
Jorge H. Faccipieri Jr., Martin Tygel, D. Rueda, L.J. Gelius
First Break
High-resolution imaging of diffractions – A window-steered MUSIC approach
Leiv-J. Gelius, Martin Tygel, André K. Takahata, Endrias G. Asgedom, Dany R. Serrano
Geophysics