Proceedings of the Conference on Graphics, Patterns and Images (SIBGRAPI)

Current Issue

2025: Proceedings of the 38th Conference on Graphics, Patterns and Images

The Proceedings of the 38th Conference on Graphics, Patterns, and Images (SIBGRAPI 2025) bring the papers selected and presented in the edition of the event held in Salvador/BA, Brazil, from September 30th to October 3rd, 2025. This volume includes 8 tutorial papers and 80 full papers from the main track. All submitted papers were selected through a double-blind peer-review process. The SIBGRAPI 2025 Program Committee was coordinated by Manuel M. Oliveira (UFRGS, Brazil), João Paulo Papa (UNESP, Brazil), Greg Welch (UCF, USA), and Gustavo Carneiro (University of Surrey, UK). This volume was organized by Felipe Belém (PUC Minas, Brazil), the publications chair. The tutorial track was coordinated by Nina Hirata (USP, Brazil) and Thales Miranda de Almeida Vieira (UFAL, Brazil).

To access the Companion Proceedings, visit the SIBGRAPI 2025 Companion Proceedings series.

You can find more information about SIBGRAPI 2025 by visiting the website of the event.

Published: 2025-09-30

Tutorials

Regularization for Inverse Problems and Machine Learning: A Tutorial

Roberto Gutierrez Beraldo, Leonardo Alves Ferreira, Ricardo Suyama

474-479
- IEEE Xplore
Tiny Titans: Efficient Large Vision, Language and Multimodal Models Through Pruning

Carolina Tavares, Leandro Mugnaini, Gustavo Henrique do Nascimento, Ian Pons, Keith Ogawa, Guilherme Stern, Lucas Libanio, Aline Paes, Anna Helena Reali Costa, Artur Jordao

480-485
- IEEE Xplore
From Volume Rendering to 3D Gaussian Splatting: Theory and Applications

Vitor Pereira Matias, Daniel Perazzo, Vinicius Silva, Alberto Raposo, Luiz Velho, Afonso Paiva, Tiago Novello

486-491
- IEEE Xplore
The Flow of Creation: A Tour of Flow Matching for Visuals

Manolo Canales Cuba, Vinícius do Carmo Melício, João Paulo Gois

492-497
- IEEE Xplore
Symmetry Shape Analysis

Ivan Sipiran

498-503
- IEEE Xplore
Getting Started with Semantic Segmentation in PyTorch Using SMP

João Fernando Mari, Leandro Henrique Furtado Pinto Silva, Mauricio Cunha Escarpinati, André Ricardo Backes

504-509
- IEEE Xplore
Rank-Based Unsupervised Similarity Learning: Framework and Applications

Italo De Matos Saldanha, Vinicius Atsushi Sato Kawai, Bionda Rozin, Gustavo Rosseto Leticio, Lucas Pascotti Valem, Daniel Carlos Guimarães Pedronette

510-515
- IEEE Xplore
Strategies for Deep Learning in Volumetric Medical Imaging: A Survey

João Vitor S. de Oliveira, Danilo F. Vieira, Mateus P. da Silva, Daniel L. Fernandes, Marcos H. F. Ribeiro, Hugo N. Oliveira

516-521
- IEEE Xplore

Main Track Papers

Facial Animation with GANs: Enhancing Temporal Coherence in Emotion Synthesis

Diego Addan Gonçalves, Eduardo Todt

1-6
- IEEE Xplore
SkimCap: A Transformer-Based Video Captioning Method with Adaptive Attention and Hierarchical Skimming Features

Leonardo V. Cardoso, Bernardo P. B. V. da C. Azevedo, Silvio Jamil F. Guimarães, Zenilton K. G. Patrocínio

7-12
- IEEE Xplore
Saliency-Guided Model with Cross and Channel Attention for Few-Shot Semantic Segmentation

Matheus Eduardo dos Santos, Silvio Jamil F. Guimarães, Zenilton K. G. Patrocínio

13-18
- IEEE Xplore
Curriculum-Based Meta-Pseudo-Labeling on 2D Projections for Active Semi-Supervised Learning

David Aparco-Cardenas, Jancarlo F. Gomes, Alexandre X. Falcão, Pedro J. de Rezende

19-24
- IEEE Xplore
Isolating Vocalizations Beats Denoising: Spectrogram Granularity and Preprocessing in Ecoacoustic Classification

Gustavo L. Lopes, Moacir A. Ponti, Maria Cristina F. Oliveira

25-30
- IEEE Xplore
Graph-Based Indexing for Fingerprint Identification Systems

João Contreras, André Nóbrega, Pascual Figueroa, Alexandre Falcão

31-36
- IEEE Xplore
A Parameter Estimation-Inspired Convolutional Block for SAR Data

Cassandra Goldberg, Jeova Farias Sales Rocha Neto

37-41
- IEEE Xplore
A Deep Learning Framework for Pulmonary Disease Classification Using Volume-Rendered CTs

Noemi Maritza L. Romero, Ricco V. C. Soares, Mariana Recamonde-Mendoza, João L. D. Comba

42-47
- IEEE Xplore
Uncertainty-Aware Chemical Analyses via Monte Carlo Deep Model Inference

Leandro Pereira Bernardo, Andre Luiz da S. Pereira, David Neves Dias, Helida Vieira, Renato Malbar, Aline Machado de Azevedo Novaes, Rafaella Magliano Balbi de Faria, Rogerio Mesquita de Carvalho, Maria Luisa Aleixo Gonçalves, Ana Mehl, Leandro A. F. Fernandes

48-53
- IEEE Xplore
Data Augmentation Improves Machine Unlearning

Andreza M. C. Falcao, Filipe R. Cordeiro

54-55
- IEEE Xplore
Baking Reflections with 3D Gaussian Splatting in Real Time Ray-Tracing Rendering

Alan Lenk, Anselmo Antunes, Horácio Macêdo, Esteban Clua

56-61
- IEEE Xplore
A Novel Method for Detecting 3D Steel Structures in As-Built Point Clouds

Rogério Pinheiro de Souza, Jan Hurtado, Cesar A. Sierra-Franco, Romeu Oliveira, Alberto Raposo

62-67
- IEEE Xplore
ResUNet: A Lightweight Residual U-Net for Scalable Fingerprint Enhancement

André Nóbrega, João Contreras, Pascual Figueroa, Alexandre Falcão

68-73
- IEEE Xplore
Optimizing Image Identification: Discriminative Keypoint Detection with Equivariant CNN and SSIM-Based Triplet Loss

Wagner L. O. Santos, Lizeth J. F. Perez, Esteban W. G. Clua, Renato Pajarola, Anselmo A. Montenegro

74-79
- IEEE Xplore
PSHDR: HDR Image Reconstruction from a Single-Exposure LDR Using Residual Features

Lucas Hildelbrano Costa Carvalho, Quefren Leher, Josue Lopez-Cabrejos, Gustavo Ferreti, Ana Beatriz Alvarez, Thuanne Paixão, Olacir Rodrigues Castro Junior

80-85
- IEEE Xplore
Simultaneous Learning Loss for Improved Cross-Domain Knowledge Transfer

Pedro Castro, Pedro H. L. Silva, David Menotti, Gladston Moreira, Eduardo Luz

86-91
- IEEE Xplore
PavicHDR: An Efficient Architecture for HDR Image Reconstruction Based on CNN and Attention Mechanisms

Josue Lopez-Cabrejos, Quefren Leher, Gustavo Ferreti, Lucas Hildelbrano Costa Carvalho, Thuanne Paixão, Ana Beatriz Alvarez, D. B. Luque

92-97
- IEEE Xplore
A Deformable Convolutional Neural Network with Dual Attention for Multi-Exposure HDR Reconstruction

Quefren Leher, Josue Lopez-Cabrejos, Gustavo Ferreti, Lucas Hildelbrano Costa Carvalho, Ana Gabriela Alvarez, Thuanne Paixão, Ana Beatriz Alvarez, Facundo Palomino-Quispe

98-103
- IEEE Xplore
Towards Zero-Shot Document Image Classification

Lucas Macedo, João Paulo Costa, João Pedro Felix De Almeida, Pedro Freitas, Li Weigang

104-109
- IEEE Xplore
Small Object Detection in Drone Captured Images for Maritime Surveillance

Alexandre R. de Mello, Murilo M. Ozol, Bruno Mingoti, Leonardo Colussi, Kaique V. C. Souza, João P. R. Storer, Carlos Duek, Filipe A. N. Verri

110-115
- IEEE Xplore
Hierarchical Vision Transformer Using Shifted Windows for Skeleton-Based Action Recognition

Luiz Carlos Cosmi Filho, Jorge Leonid Aching Samatelo, Raquel Frizera Vassallo

116-121
- IEEE Xplore
Unified-Copycat: Unifying Heterogeneous Classifiers Using Non Problem Domain Data

Gabriel Braga Ladislau, Jhonatan Machado Leão, Marlon Moratti do Amaral, Claudine Badue, Alberto Ferreira De Souza, Thiago Oliveira-Santos

122-127
- IEEE Xplore
Flowcheck: A Discrete Flow Matching Approach for Generating Chess Configurations

Vinícius do Carmo Melício, Manolo Canales Cuba, Charles Morphy D. Santos, João Paulo Gois

128-133
- IEEE Xplore
A Study of Synthetic and Cross-Domain Real-Data Pre-Training for Aerial Farm Monitoring

Juliana Ferreira, Lucas Silva, Antônio Gomes, Larissa Rodrigues, Thiago Gomes, Michel Silva

134-139
- IEEE Xplore
Enhancing Distilled Datasets Via Natural Data Mixing

Ian Pons, Guilherme B. Stern, Anna H. Reali Costa, Artur Jordao

140-145
- IEEE Xplore
PD-Loss: Proxy-Decidability for Efficient Metric Learning

Pedro H. L. Silva, Guilherme A. L. Silva, Pablo Coelho, Vander Freitas, Gladston Moreira, David Menotti, Eduardo Luz

146-151
- IEEE Xplore
A Multi-Scale Diffusion Method for Chromatic Adaptation and Halo Artifact Suppression

Fabián Concha Sifuentes, Edward Cayllahua Cahuina, Rensso Mora Colque

152-157
- IEEE Xplore
Diversity-Informed Fusion for Sclerotinia Sclerotiorum and White Mold Detection

Rubens de C. Pereira, Díbio L. Borges, Murillo Lobo, Ricardo da S. Torres, Helio Pedrini

158-163
- IEEE Xplore
VideoFakeD: Video-Based Deepfake Detection

Igor L. O. Bastos, Anderson R. Rocha, William Robson Schwartz

164-169
- IEEE Xplore
Controllable Low-Light Image Enhancement with Restoration Level Estimator

Gabriel Tadiello, Bernardo Henz, Manuel M. Oliveira

170-175
- IEEE Xplore
Mobile Solution for Alkalinity Estimation from Colorimetric Analysis via CNNs

Andre Luiz da S. Pereira, Gustavo L. Silva, Leandro P. Bernardo, Luca M. Mendonça, Paulo H. B. Lopes, Raphael dos S. Evangelista, Caroline dos S. Silva, Helida Vieira, Mariana Dias, Renata Recker, Renato Malbar, Bruna N. Teixeira, Thiago G. Correia, Aline Machado de Azevedo Novaes, Rafaella Magliano Balbi de Faria, Rogerio Mesquita de Carvalho, Helena C. G. Leitão, Rossana Mara S. M. Thiré, Maria Luisa A. Gonçalves, Ana Mehl, Marco Antonio Gomes Teixeira, Leandro A. F. Fernandes

176-181
- IEEE Xplore
Visualizing Communities in Dynamic Multivariate Networks

Karen Larkina, Oksana Holomsha, Lucas Lemos, Amilcar Soares, Rafael M. Martins, Andreas Kerren, Vinícius R. P. Borges, Célia G. Ralha, Jean R. Ponciano, Claudio D. G. Linhares

182-187
- IEEE Xplore
A Comparative Study on Few-Shot Learning for Retinal Disease Classification

Victor N. Ribeiro, Fernando G. Lima, Rodrigo de C. Michelassi, Carlos A. M. Rabelo, Nina S. T. Hirata

188-193
- IEEE Xplore
A Deep Metric Learning Approach for Content Based Image Retrieval in Rock Tomography: A Triplet Loss Study

Anderson Silva, Marcos Farias, João Souza, Daniel Pinto, Filipe Belfort, Mario Freitas, Alexandre Araújo, Alexandre Pessoa, Aristófanes Silva, Andrey Rodrigues, Marcelo Albuquerque

194-199
- IEEE Xplore
Quo Vadis Pathology? Advancing Glomerular Lesion Classification with Foundation Models

David Lima, Grinaldo Oliveira, Ângelo Duarte, Washington Santos, Luciano Oliveira

200-205
- IEEE Xplore
When Text and Image Meet Face Emotion Retrieval: Benchmark and a Variegated Dataset

Fillipe Andrade, Rui Carigé, Arthur Schineider, Luciano Oliveira

206-211
- IEEE Xplore
Density-Guided Rank Correlation Graphs for Graph Convolutional Networks in Image Classification

Gabriel Maia Brito, Lucas Pascotti Valem

212-217
- IEEE Xplore
Exploring Light-Weight Object Recognition for Real-Time Document Detection

Lucas Wojcik, Luiz Coelho, Roger Granada, David Menotti

218-223
- IEEE Xplore
Deep Learning for Protoplanetary Disk Classification from Hubble Images: A Comparative Study on Imbalanced Data

Marília M. Fernandez, Alexandre L. M. Levada, Pedro H. Bugatti

224-229
- IEEE Xplore
Memory-Augmented Long Short-Term Memory for Dynamic Video Summarization

Leonardo Vilela Cardoso, Barbara H. P. Soraggi, Silvio Jamil F. Guimarães, Zenilton K. G. Patrocínio

230-235
- IEEE Xplore
Semi-Supervised Image Retrieval Through Particle Competition and Cooperation Combined with Manifold Learning

Vinicius Atsushi Sato Kawai, Gustavo Rosseto Leticio, Daniel Carlos Guimarães Pedronette

236-241
- IEEE Xplore
Automated Synthetic Data for Computer Vision: Blender-COCO Pipeline Enhancing Yolov8

Victor Roza Souza, Djonathan Caua Fritzen Christ, Igor Scaliante Wiese, Thiago França Naves, Telma Woerle de Lima Soares, Anderson da Silva Soares, Luciana de Oliverira Berretta

242-247
- IEEE Xplore
Fortifying Reversible Face Anonymization: A Secure Image Embedding Loss to Prevent Identity Leakage

Luiz Eduardo Lima Coelho, William Robson Schwartz

248-253
- IEEE Xplore
Longitudinal White Matter Hyperintensity Segmentation with LSTM-Enhanced U-Net

Kauê TN Duarte, Murilo C. Barros, Abhijot S. Sidhu, David G. Gobbi, Cheryl R. McCreary, Feryal Saad, Eric E. Smith, Mariana P. Bento, Richard Frayne

254-259
- IEEE Xplore
An Iterative Approach to Determine the Lower Bound of Depth Resolution in Stereo Vision Systems

Guilherme Toledo, Lorenzo Carrera de Oliveira, Eanes Torres Pereira

260-264
- IEEE Xplore
Toward Linear Representations of Foundation Models for Histopathology Image Retrieval

Matheus Santos, Igor Borja, David Lima, Grinaldo Oliveira, Ângelo Duarte, Washington Santos, Luciano Oliveira

265-270
- IEEE Xplore
Real-Time Monitoring and Historical Analysis of Rainfall and its Impacts on Urban Areas

Fábio Victorino da Cruz, Fabio Miranda, Aline Paes, Daniel de Oliveira, Marcos Lage

271-276
- IEEE Xplore
Dynamic Model Weighting via Stacking-Meta Learning for Multi-Class Classification

Agostinho Freire, João V. R. de Andrade, Bruno J. T. Fernandes, Leandro H. de S. Silva, Gabriel Albuquerque, Mário Guerra, Igor Balbino, Monique Suellen Tomaz, João Fausto L. de Oliveira

277-282
- IEEE Xplore
Quantitative Analysis of Visual XAI for Multiclass DeepFake Detection Based on CNN

Leandro Santiago de Araújo, Flávio Luiz Seixas, Adriano Lima e Souza, Laura Tissi Tracierra Rezende, Hugo Coutinho Dutra, Miguel D. S. Wanderley, Italo Antonio Duarte Oliveira

283-288
- IEEE Xplore
Deepfake Detection with GenConViT and DeepfakeBenchmark: A Comparative Study on the Deepspeak Dataset

Matheus Martins Batista, Isabela Neves Drummond, Bruno Guazzelli Batista

289-294
- IEEE Xplore
Detection and Segmentation of Dental Features from Tomographic Images for Age Estimation

Alexandre Vieira Pereira Pacelli, Davi Magalhães Pereira, William José Lopes Junior, Saulo Moraes Villela, Heder Soares Bernardino, Karina Lopes Devito, Marcelo Bernardes Vieira

295-300
- IEEE Xplore
A U-Net-Based Approach for Histological Tissue Segmentation Using RCAug Data Augmentation

Domingos L. L. de Oliveira, Thaína A. A. Tosta, Leandro A. Neves, Adriano B. Silva, Alessandro S. Martins, Paulo R. de Fariall, Marcelo Z. do Nascimento

301-306
- IEEE Xplore
ZEDD-G: ZEro-Shot Diffusion-Based Data Generation for Improving Classification Tasks

José D.G. Ramos, Tatiana T. Schein, Stephanie L. Brião, Felipe G. Oliveira, Paulo L. J. Drews

307-312
- IEEE Xplore
Lightweight Hybrid Ensemble for Ameloblastoma and Ameloblastic Carcinoma Classification

Domingos L. L. de Oliveira, Hanna B. C. M. F. de Castro, Thaína A. A. Tosta, Leandro A. Neves, Pedro A. A. Oliveira, Paulo R. de Fariall, Marcelo Z. do Nascimento

313-318
- IEEE Xplore
Exploring the Use of Synthetic Data to Improve Pedestrian Detection in CNN

Rubens Montanha, Soraia Musse

319-324
- IEEE Xplore
Interactive Exploration and Explanation of Spatio-Temporal Anomalies with Graph-LLM Integration

Juanpablo Heredia, Leighton Estrada-Rayme, Jeremy Matos-Cangalaya, Jorge Poco

325-330
- IEEE Xplore
Adapting Synthetic Eyes: A Study of Pixel and Feature-Level UDA for Traffic Object Detection

André N. Medeiros, Renato M. Silva, Jurandy Almeida, Tiago A. Almeida

331-336
- IEEE Xplore
Graph Convolutional Networks Based on Aggregated Multilevel kNN Graph for Image Classification

Gustavo Rosseto Leticio, Vinicius Atsushi Sato Kawai, Lucas Pascotti Valem, Daniel Carlos Guimarães Pedronette

337-342
- IEEE Xplore
Generating Urban Forest Datasets from Satellite Imagery: Application to the City of São Paulo

Normando Amazonas, Rogério Negri, Luis Gustavo Nonato

343-348
- IEEE Xplore
Circle-Based Object Counting Using Image Analysis

Altair Felipe Peiter, Bernardo Paul Lorenzoni Ávila, Leonardo Ramos Emmendörfer, Lucas Both Steinmetz Ribeiro

349-354
- IEEE Xplore
DualMatch: A Dual EMA Teacher for Underwater Semi-Supervised Pipeline Segmentation

Eduardo L. Silva, Tatiana T. Schein, Stephanie L. Brião, Gabriel L. Anastacio, Felipe G. Oliveira, Paulo L. J. Drews-Jr

355-360
- IEEE Xplore
Sonar Image Datasets: A Comprehensive Survey of Resources, Challenges, and Applications

Larissa S. Gomes, Gustavo P. Almeida, Bryan U. Moreira, Marco Quiroz, Breno Xavier, Lucas Soares, Stephanie L. Brião, Felipe G. Oliveira, Paulo L. J. Drews-Jr

361-366
- IEEE Xplore
A Curvature-Based Adaptive UMAP for Manifold Learning in Clustering and Classification

Gustavo Henrique Chavari, Alexandre Luís Magalhães Levada

367-372
- IEEE Xplore
Does Isotropy Improve 3D Deep Learning Segmentation? A Comparative Study on Cardiac MRI

Matheus A. O. Ribeiro, Marco A. Gutierrez, Fátima L. S. Nunes

373-378
- IEEE Xplore
Advancing Annotat3D with Harpia: A CUDA-Accelerated Library for Large-Scale Volumetric Data Segmentation

Camila Machado de Araujo, Egon P. B. S. Borges, Ricardo Marcelo Canteiro Grangeiro, Allan Pinto

379-384
- IEEE Xplore
Performance Assessment of Optical and SAR Imagery for Superpixel-Based Deforestation Mapping in the ForestEyes Project

Vinícius D'Lucas B. e Queiroz, Hugo Resende, Fabio A. Faria, Álvaro L. Fazenda

385-390
- IEEE Xplore
BeSIM: A Benchmark for Evaluating the Interpretation of Social Interactions in Brazil Using Multimodal Large Language Models

Mateus Souza Falcão, Francisco Paulo Magalhães Simões, Vitória Sofia Vieira dos Santos

391-396
- IEEE Xplore
Visual Similarity Search of Cattle Brands Using Deep Learning on Binary Representations

Marcos Vinicius S. Medeiros, Leandra A. Soares, Edmundo Hoyle, Aldo A. Díaz-Salazar

397-402
- IEEE Xplore
LPLC: A Dataset for License Plate Legibility Classification

Lucas Wojcik, Gabriel E. Lima, Valfride Nascimento, Eduil Nascimento, Rayson Laroca, David Menotti

403-408
- IEEE Xplore
RuleText-AD: Logical Anomaly Detection via Textual Rule Engines Generated by MLLMs

Leandro Souza da Silva, Mauricio Schiezaro, Diulhio Oliveira

409-414
- IEEE Xplore
OCEG: an Interactive Visualization System for Classifier Ensemble Generation

Mauro Diaz, Guillermo Camara-Chavez, Erick Gomez-Nieto

415-420
- IEEE Xplore
GLOF-Vulnerability Identification Based on Automatic Method for Mapping Glacial Lakes in Cordillera Blanca (Peru)

Nury Arosquipa, R. Hirata

421-426
- IEEE Xplore
Creating an Annotated Image Dataset for Wood Vessel Segmentation

Gustavo Chagas Andrade, Fabio Augusto Faria, Sérgio Ronaldo Barros dos Santos

427-432
- IEEE Xplore
MineTracker: Visual Analytics for Spatiotemporal Analysis of Mining Areas in the Brazilian Amazon

Ana Luiza Nunes, Mauro Diaz, Jorge Poco

433-438
- IEEE Xplore
AquaFeat: A Features-Based Image Enhancement Model for Underwater Object Detection

Emanuel C. Silva, Tatiana T. Schein, Stephanie L. Brião, Guilherme L. M. Costa, Felipe G. Oliveira, Gustavo P. Almeida, Eduardo L. Silva, Sam S. Devincenzi, Karina S. Machado, Paulo L. J. Drews

439-444
- IEEE Xplore
U-Net + Transformer Encoder and Lora Adaptation for Rural Sheep Segmentation

Júlio V. M. Marques, Willians S. Santos, Anthony I. M. Luz, Rafael L. Araújo, Alcilene D. de Sousa, Jose L. R. Sarmento, Romuere R. V. Silva

445-450
- IEEE Xplore
Open-Set Spatiotemporal Segmentation for Phenological Novelty Detection

Cristiano N. Rodrigues, Frederico G. Guimarães, Jefersson A. Dos Santos

451-455
- IEEE Xplore
Exploring Urban Factors with Autoencoders: Relationship Between Static and Dynamic Features

Ximena Pocco, Waqar Hassan, Karelia Salinas, Vladimir Molchanov, Luis G. Nonato

456-461
- IEEE Xplore
MeshSeg: 3D Mesh Segmentation Through Color Clustering for Controllable Texture Editing

Caetano Müller, Gustavo Lopes Tamiosso, Lucas Spagnolo Bombana, Manuel M. Oliveira

462-467
- IEEE Xplore
E-MLNet: Enhanced Mutual Learning for Universal Domain Adaptation with Sample-Specific Weighting

Samuel Felipe dos Santos, Tiago Agostinho De Almeida, Jurandy Almeida

468-473
- IEEE Xplore

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