Robust tracking with particle filtering for fluorescent cardiac imaging

Intraoperative fluorescent cardiac imaging enables quality control following coronary bypass grafting surgery.We can estimate local quantitative indicators, such as cardiac perfusion, by tracking local feature points. However, heart motion and significant fluctuations in image characteristics caused by vessel structural enrichment limit traditional tracking methods. We propose a particle filtering tracker based on cyclicconsistency checks to robustly track particles sampled to follow target landmarks. Our method tracks 117 targets simultaneously at 25.4 fps, allowing real-time estimates during interventions. It achieves a tracking error of (5.00 ± 0.22 px) and outperforms other deep learning trackers (22.3 ± 1.1 px) and conventional trackers (58.1 ± 27.1 px).

DDC Class

616.07: Pathology

617.9: Operative Surgery and Special Fields of Surgery

621.3: Electrical Engineering, Electronic Engineering

Funding(s)

Präzise, markerlose semantische Lageverfolgung von Weichgeweben

Lizenz

https://creativecommons.org/licenses/by/4.0/

Publication version

publishedVersion

Name

10.1515_cdbme-2025-0315.pdf

Type

Main Article

Size

2.36 MB

Format

Adobe PDF

Options

Robust tracking with particle filtering for fluorescent cardiac imaging