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Zhihao Zhao

6 accepted papers

2026

Augmenting the Reach: Visualizing Robotic Working Volume at the Tool Tip for Intuitive Retinal Access in Eye Surgery

ICRA 2026poster

Retinal Surgery Robotics is a rapidly emerging field that offers enhanced precision by overcoming human tremors. A key trend of these robotic designs is toward more compact and lightweight structures for improved positioning accuracy and precise force delivery. However, this compactness sacrifices t…

Cited by 0Scholar
2025

Intraoperative Trocar-Based Eyeball Rotation Estimation Using Only 2D Microscope Images

ICRA 2025

In ophthalmic surgery, surgeons or robots manipulate a light probe and an instrument around two separated trocars following sclerotomy to achieve orbital control for eyeball pose adjustment and subsequent surgical tasks referring to microscope frames. However, current methods face significant challe

Cited by 0SourceScholar
2024

EyeLS: Shadow-Guided Instrument Landing System for Target Approaching in Robotic Eye Surgery

RA-L 2024

Robotic ophthalmic surgery is an emerging technology to facilitate high-precision interventions such as subretinal injection and removing swinging tissues in retinal detachment using microscopy and iOCT. However, locating the instrument tip outside iOCT's range-limited ROI is challenging, especially

Cited by 3SourceScholar
2024

Intraocular Reflection Modeling and Avoidance Planning in Image-Guided Ophthalmic Surgeries

IROS 2024

Intuitive enhancement of surgical precision in robotic retinal surgery highly depends on the stable acquisition of intraocular imaging data. Such acquisition requires segmenting intraocular components, especially instrument-tip positions, to achieve state estimation and subsequent navigation and mot

Cited by 0SourceScholar
2024

Shadow Maintenance for Automatic Light-Probe Control in Ophthalmic Surgeries Using Only 2D information

IROS 2024poster

In ophthalmic surgeries, the light probe is responsible for providing safe intraocular illumination and ensuring the visibility of the instrument and its shadow as the only available reference for qualitative depth estimation and landing point prediction in fundus microscopic images. To achieve sust…

Cited by 0SourceScholar
2024

Shadow-Based 3D Pose Estimation of Intraocular Instrument Using Only 2D Images

ICRA 2024poster

In ophthalmic surgeries, such as vitreoretinal operations, surgeons rely on imaging systems, primarily microscopes, for real-time instrument monitoring and motion planning. However, novice surgeons struggle to extract 3D instrument positions from 2D microscope frames, necessitating extensive trial-a…

Cited by 0SourceScholar