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Yancy Diaz-Mercado

9 accepted papers

2026

Fluoroscopy-Constrained Magnetic Robot Control Via Zernike-Based Field Modeling and Nonlinear MPC

ICRA 2026poster

Magnetic actuation enables surgical robots to navigate complex anatomical pathways while reducing tissue trauma and improving surgical precision. However, clinical deployment is limited by the challenges of controlling such systems under fluoroscopic imaging, which provides low framerate and noisy p…

2025

Suture Thread Modeling Using Control Barrier Functions for Autonomous Surgery

ICRA 2025

Automating surgical systems enhances precision and safety while reducing human involvement in high-risk environments. A major challenge in automating surgical procedures like suturing is accurately modeling the suture thread, a highly flexible and compliant component. Existing models either lack the

Cited by 1SourceScholar
2022

Effectiveness of Augmented Reality for Human Swarm Interactions

ICRA 2022poster

Human-Swarm Interaction (HSI) is a fast-growing research area in swarm robotics. One challenging aspect of HSI is facilitating effective handling of the many degrees-of-freedom present in robot swarms by humans. One emergent option is the use of Augmented Reality (AR) systems to encode information.…

Cited by 8SourceScholar
2022

Enhanced Accuracy in Magnetic Actuation: Closed-Loop Control of a Magnetic Agent With Low-Error Numerical Magnetic Model Estimation

RA-L 2022

Magnetic actuation holds promise for wirelessly controlling small, magnetic surgical tools and may enable the next generation of ultra minimally invasive surgical robotic systems. Precise torque and force exertion are required for safe surgical operations and accurate state control. Dipole field est

Cited by 10SourceScholar
2022

Interactive Multi-Robot Aerial Cinematography Through Hemispherical Manifold Coverage

IROS 2022poster

This paper presents a distributed interactive framework to provide high-level position instructions for multi-robot aerial cinematography based on coverage over a hemisphere. The control strategy based on optimization of the coverage functional and geometric relationships over a hemisphere is presen…

Cited by 6SourceScholar
2021

Localization and Control of Magnetic Suture Needles in Cluttered Surgical Site with Blood and Tissue

IROS 2021poster

Real-time visual localization of needles is necessary for various surgical applications, including surgical automation and visual feedback. In this study we investigate localization and autonomous robotic control of needles in the context of our magneto-suturing system. Our system holds the potentia…

Cited by 8SourceScholar
2020

Towards Autonomous Control of Magnetic Suture Needles

IROS 2020poster

This paper proposes a magnetic needle steering controller to manipulate mesoscale magnetic suture needles for executing planned suturing motion. This is an initial step towards our research objective: enabling autonomous control of magnetic suture needles for suturing tasks in minimally invasive sur…

Cited by 12SourceScholar
2018

Coverage Control for Multirobot Teams With Heterogeneous Sensing Capabilities

RA-L 2018

This letter investigates how mobile agents with qualitatively different sensing capabilities should be organized in order to effectively cover an area. In particular, by encoding the different capabilities as different density functions in the locational cost, the result is a heterogeneous coverage

Cited by 107SourceScholar