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Key Parameters for Performance and Resilience Modeling of 3D Time-of-Flight Cameras Under Consideration of Signal-to-Noise Ratio and Phase Noise Wiggling.
Sensors (Basel)
December 2024
Department of Electrical Engineering and Information Technology, University of Applied Sciences Mittelhessen, 35390 Giessen, Germany.
Because of their resilience, Time-of-Flight (ToF) cameras are now essential components in scientific and industrial settings. This paper outlines the essential factors for modeling 3D ToF cameras, with specific emphasis on analyzing the phenomenon known as "wiggling". Through our investigation, we demonstrate that wiggling not only causes systematic errors in distance measurements, but also introduces periodic fluctuations in statistical measurement uncertainty, which compounds the dependence on the signal-to-noise ratio (SNR).
View Article and Find Full Text PDFIGAF: Incremental Guided Attention Fusion for Depth Super-Resolution.
Sensors (Basel)
December 2024
School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK.
Accurate depth estimation is crucial for many fields, including robotics, navigation, and medical imaging. However, conventional depth sensors often produce low-resolution (LR) depth maps, making detailed scene perception challenging. To address this, enhancing LR depth maps to high-resolution (HR) ones has become essential, guided by HR-structured inputs like RGB or grayscale images.
View Article and Find Full Text PDFBackground: National response time targets for ambulance services are known to be more strongly maintained in urban areas compared to rural. That may mean that responses in rural areas could be less immediate which can in turn affect survival of those experiencing cardiac arrest. Thus, analysis of variation in response times using routinely collected data can be used to understand which rural areas have the highest need for emergency intervention.
View Article and Find Full Text PDFNeural Radiance Fields (NeRF) for 3D Reconstruction of Monocular Endoscopic Video in Sinus Surgery.
Otolaryngol Head Neck Surg
January 2025
Department of Otolaryngology-Head and Neck Surgery, University of Washington, Seattle, Washington, USA.
Objective: To validate the use of neural radiance fields (NeRF), a state-of-the-art computer vision technique, for rapid, high-fidelity 3-dimensional (3D) reconstruction in endoscopic sinus surgery (ESS).
Study Design: An experimental cadaveric pilot study.
Setting: Academic medical center.
Evaluation of Health Education Based on Pictograms and Video Sequences in the Prevention of Hand Eczema Among Hospital Cleaners: A Cluster-Randomised Controlled Trial With 24 Weeks Follow-Up.
Contact Dermatitis
January 2025
Department of Dermatology, Bispebjerg Hospital, Copenhagen, Denmark.
Background: Hand eczema (HE) is common among hospital cleaners, yet no specific prevention programme exists for this group in Denmark.
Objectives: To evaluate the effectiveness of visual aids (pictograms and video scenes) based on evidence-based skin care and protection recommendations on HE outcomes, focusing on disease severity, point prevalence and skin care and protection knowledge.
Methods: A cluster-randomised controlled trial was conducted in professional cleaners from three Danish hospitals.
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