About

Engineer and data scientist focused on machine learning and computer vision. Since 2016, working on R&D with publications and collaborations with Samsung, Petrobras, Google and iFood.

Vision Transformers Self-Supervised Learning MLOps / Big Data RAG · LLM
Samsung · Petrobras · Google · iFood · C&A

Selected Projects

VESSA — Efficient Adaptation of Visual Foundation Models

2023–2025 · MSc Research with Google Support

Self-supervised efficient adaptation of DINO/DINOv2 for specific domains using multi-view video snippets.

PyTorchViTSSL

GODeep — Seismic Interpretation (Petrobras)

2025 · Deep Learning R&D

End-to-end subsurface ML: Seismic segmentation, facies classification, and well-log regression fusing 3D data.

UNet3DSegFormerGeophysics

HAR-HEALTH — Wearable Sensors (Samsung)

2017–2018 · Mobile AI

Human Activity Recognition using IMU signals (accelerometer/gyroscope) with on-device optimization.

TensorFlow LiteIoTEdge AI

Publications

Object-Based Temporal Segment Relational Network for Activity Recognition

2024 · Computer Vision Conference (Example Venue)

J. Barreto, et al.

PDF

Patents

System and method for detecting food ingestion events from wearables

Pending 2025 · Samsung Electronics

Inventors: Barreto, J., et al.