Results 31 to 40 of about 1,134,173 (194)

High Contrast Allows the Retina to Compute More Than Just Contrast

Frontiers in Cellular Neuroscience, 2021
The goal of sensory processing is to represent the environment of an animal. All sensory systems share a similar constraint: they need to encode a wide range of stimulus magnitudes within their narrow neuronal response range.
Matthew Yedutenko, Marcus H. C. Howlett, Maarten Kamermans, Maarten Kamermans   +3 more
doaj   +1 more source

Sensors, Medical Images and Signal Processing: [PDF]

Yearbook of Medical Informatics, 2010
Summary Objectives To summarize current excellent research in the field of medical sensor, signal and imaging informatics. Method: Synopsis of the articles selected for the IMIA (International Medical Informatics Association) Yearbook 2010.
A, Depeursinge, H, Müller
openaire   +2 more sources

Computer Aided ECG Analysis - State of the Art and Upcoming Challenges

, 2013
In this paper we present current achievements in computer aided ECG analysis and their applicability in real world medical diagnosis process. Most of the current work is covering problems of removing noise, detecting heartbeats and rhythm-based analysis.
Car, Sinisa, Padavic, Ivan, Velic, Marko
core   +1 more source

Medical image colorization for better visualization and segmentation [PDF]

, 2017
Medical images contain precious anatomical information for clinical procedures. Improved understanding of medical modality may contribute significantly in arena of medical image analysis.
A Ahmad, A Mustaqeem, A Popowicz, A Rosset, AK Kar, C Hutton, D Dinsha, D Peruzzo, F Li, FL Giesel, GI Barbash, H Noda, J Shiraishi, K Clark, K Suzuki, K-W Ko, M Attique, M Martinez-Escobar, M Tofangchiha, MA Talamini, MN Wernick, T Horiuchi, TH Khan, U Lipowezky, YK Kumar   +24 more
core   +1 more source

Computer-aided detection of arrhythmogenic sites in post-ischemic ventricular tachycardia

Scientific Reports, 2023
Nowadays, catheter-based ablation in patients with post-ischemic ventricular tachycardia (VT) is performed in arrhythmogenic sites identified by electrophysiologists by visual inspection during electroanatomic mapping.
Giulia Baldazzi, Marco Orrù, Graziana Viola, Danilo Pani   +3 more
doaj   +1 more source

Compressive Sensing Using Iterative Hard Thresholding with Low Precision Data Representation: Theory and Applications

, 2020
Modern scientific instruments produce vast amounts of data, which can overwhelm the processing ability of computer systems. Lossy compression of data is an intriguing solution, but comes with its own drawbacks, such as potential signal loss, and the need
Alistarh, Dan, Gürel, Nezihe Merve, Kara, Kaan, Lemmin, Thomas, Püschel, Markus, Smith, Tyler, Stojanov, Alen, Zhang, Ce   +7 more
core   +1 more source

Advances on CMOS image sensors [PDF]

, 2016
This paper offers an introduction to the technological advances of image sensors designed using complementary metal–oxide–semiconductor (CMOS) processes along the last decades.
Gouveia, Luiz
core   +1 more source

Dynamic Time Warping of Pulse Wave Curves

Current Directions in Biomedical Engineering, 2018
Being able to non-obtrusively and continuously monitor arterial blood pressure is of great interest, particularly in the context of wearable sensors. A common limitation is the need for dedicated hardware, which is either obtrusive or expensive.
Pielmuş Alexandru-Gabriel, Osterland Dennis, Tigges Timo, Klum Michael, Orglmeister Reinhold, Feldheiser Aarne, Hunsicker Oliver   +6 more
doaj   +1 more source

Directional analysis of intensity changes for determining the existence of cyst in optical coherence tomography images

Scientific Reports, 2022
Diabetic retinopathy (DR) is an important cause of blindness in people with the long history of diabetes. DR is caused due to the damage to blood vessels in the retina.
Maryam Monemian, Hossein Rabbani
doaj   +1 more source

Dual-Tree Complex Wavelet Input Transform for Cyst Segmentation in OCT Images Based on a Deep Learning Framework

Photonics, 2022
Optical coherence tomography (OCT) represents a non-invasive, high-resolution cross-sectional imaging modality. Macular edema is the swelling of the macular region.
Reza Darooei, Milad Nazari, Rahele Kafieh, Hossein Rabbani   +3 more
doaj   +1 more source