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Walter Simson

4 accepted papers

2024

Implicit Neural Representations for Breathing-compensated Volume Reconstruction in Robotic Ultrasound

ICRA 2024poster

Ultrasound (US) imaging is widely used in diagnosing and staging abdominal diseases due to its lack of non-ionizing radiation and prevalent availability. However, significant inter-operator variability and inconsistent image acquisition hinder the widespread adoption of extensive screening programs.…

Cited by 4SourceScholar
2022

Acoustic Shadowing Aware Robotic Ultrasound: Lighting up the Dark

RA-L 2022

Ultrasound imaging is becoming more prevalent in clinical practice and research. To counteract the drawbacks of high user-dependency and difficult interpretability, ultrasound probes can be attached to robotic arms, enabling an increase in accuracy and repeatability. Currently, robotic ultrasound sc

Cited by 9SourceScholar
2020

Automatic Normal Positioning of Robotic Ultrasound Probe Based Only on Confidence Map Optimization and Force Measurement

RA-L 2020

Acquiring good image quality is one of the main challenges for fully-automatic robot-assisted ultrasound systems (RUSS). The presented method aims at overcoming this challenge for orthopaedic applications by optimizing the orientation of the robotic ultrasound (US) probe, i.e. aligning the central a

Cited by 83SourceScholar
2020

Ultrasound-Guided Robotic Navigation with Deep Reinforcement Learning

IROS 2020poster

In this paper we introduce the first reinforcement learning (RL) based robotic navigation method which utilizes ultrasound (US) images as an input. Our approach combines state-of-the-art RL techniques, specifically deep Q-networks (DQN) with memory buffers and a binary classifier for deciding when t…

Cited by 57SourceScholar