Search Results for author: Nicolás Ayobi

Found 5 papers, 5 papers with code

MuST: Multi-Scale Transformers for Surgical Phase Recognition

1 code implementation24 Jul 2024 Alejandra Pérez, Santiago Rodríguez, Nicolás Ayobi, Nicolás Aparicio, Eugénie Dessevres, Pablo Arbeláez

Phase recognition in surgical videos is crucial for enhancing computer-aided surgical systems as it enables automated understanding of sequential procedural stages.

Online surgical phase recognition

Pixel-Wise Recognition for Holistic Surgical Scene Understanding

3 code implementations20 Jan 2024 Nicolás Ayobi, Santiago Rodríguez, Alejandra Pérez, Isabela Hernández, Nicolás Aparicio, Eugénie Dessevres, Sebastián Peña, Jessica Santander, Juan Ignacio Caicedo, Nicolás Fernández, Pablo Arbeláez

To exploit our proposed benchmark, we introduce the Transformers for Actions, Phases, Steps, and Instrument Segmentation (TAPIS) model, a general architecture that combines a global video feature extractor with localized region proposals from an instrument segmentation model to tackle the multi-granularity of our benchmark.

Scene Understanding Segmentation +1

STRIDE: Street View-based Environmental Feature Detection and Pedestrian Collision Prediction

1 code implementation25 Aug 2023 Cristina González, Nicolás Ayobi, Felipe Escallón, Laura Baldovino-Chiquillo, Maria Wilches-Mogollón, Donny Pasos, Nicole Ramírez, Jose Pinzón, Olga Sarmiento, D Alex Quistberg, Pablo Arbeláez

This paper introduces a novel benchmark to study the impact and relationship of built environment elements on pedestrian collision prediction, intending to enhance environmental awareness in autonomous driving systems to prevent pedestrian injuries actively.

Autonomous Driving object-detection +2

MATIS: Masked-Attention Transformers for Surgical Instrument Segmentation

1 code implementation16 Mar 2023 Nicolás Ayobi, Alejandra Pérez-Rondón, Santiago Rodríguez, Pablo Arbeláez

We propose Masked-Attention Transformers for Surgical Instrument Segmentation (MATIS), a two-stage, fully transformer-based method that leverages modern pixel-wise attention mechanisms for instrument segmentation.

Segmentation

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