We demonstrated that it is possible to perform optical mapping with contracting cardiac tissues in real-time and with large video images using GPU-accelerated numerical motion tracking and motion …

Nov 7, 2023 · Recent developments in motion artifact mitigation techniques have made it possible to optically map beating ex vivo hearts, enabling the study of cardiac electromechanics using optical …

Jan 16, 2024 · This review provides a comprehensive overview of recent advances in optical mapping and optogenetics and outlines the promising future of optics in reshaping cardiac electrophysiology …

Jul 16, 2023 · Here, we introduce a high-resolution multi-camera optical mapping system with which we image action potential waves at high resolutions across the entire ventricular surface of the beating …

Mar 31, 2022 · Optical mapping of animal models is a widely used technique in pre-clinical cardiac research. It has several advantages over other methods, including higher spatial resolution, …

Apr 4, 2026 · Compute local activation times and activation maps. Plot and compare optical traces from selected locations in multiple videos (e.g. before vs. after or dual-channel mode).

Jul 5, 2025 · First, the video is smoothed in space and time using a Gaussian kernel. Then, local contrast is enhanced to remove fluorescence signal. Finally, optical flow is estimated between every …

Mar 8, 2026 · Recent developments in computer vision algorithms and ratiometric techniques have opened the possibility of performing optical mapping studies on isolated contracting hearts. In this …

Nov 11, 2014 · In this paper, we describe a novel, post-experiment image processing method that corrects dynamic optical electrical maps for heart wall motion and reduces artifact associated with …

We evaluated the tracking accuracies and motion-stabilization capabilities of the GPU-based algorithms on synthetic optical mapping videos, determined their sensitivity to fluorescence signals and noise, …