collaborators

6 papers

cs.RO2026

OptiSight: Bridging Semantic Reasoning and Geometric Control for Embodied Navigation

Alperen Avan, Jordi Sanchez-Riera

Autonomous indoor navigation requires both semantic understanding and precise geometric control. We propose OptiSight, a hybrid framework that combines Vision-Language Model reason…

cs.CV2026

Spotter: Efficient Urban Visual Localization via Geo-Referenced Facade Landmarks in GPS-Degraded Environments

Antoni Valls, Jordi Sanchez-Riera

Accurate visual localization on robotic and wearable platforms remains challenging in dense urban environments. Existing methodologies typically rely on GPS for absolute positionin…

cs.CV2026

VisionAssist: An Open-Source Smartphone Assistant for AI-Based Visual Accessibility

Ayşe Özlem Çalışkan, Jordi Sanchez-Riera

People with low vision often face challenges in performing everyday tasks that require interpreting visual information. We present \textbf{VisionAssist}, an open-source mobile appl…

cs.CV2026

Urban Risk-Aware Navigation via VQA-Based Event Maps for People with Low Vision

Antoni Valls, Jordi Sanchez-Riera

Visual impairment affects hundreds of millions of people worldwide, severely limiting their ability to navigate urban environments safely and independently. While wearable assistiv…

cs.CV2026

BEA-GS: BEyond RAdiance Supervision in 3DGS for Precise Object Extraction

Alessio Mazzucchelli, Maria Naranjo-Almeida, Jorge Bustos-Sanchez +4

Most Gaussian Splatting techniques that provide a 3D semantic representation of the scene do not optimize the underlying 3D geometry, making object-level editing or asset extractio…

cs.CV2024

MultiPhys: Multi-Person Physics-aware 3D Motion Estimation

Nicolas Ugrinovic, Boxiao Pan, Georgios Pavlakos +5

We introduce MultiPhys, a method designed for recovering multi-person motion from monocular videos. Our focus lies in capturing coherent spatial placement between pairs of individu…