Results 31 to 40 of about 554,094 (312)
Cyst identification in retinal optical coherence tomography images using hidden Markov model
Scientific Reports, 2023 Optical Coherence Tomography (OCT) is a useful imaging modality facilitating the capturing process from retinal layers. In the salient diseases of retina, cysts are formed in retinal layers. Therefore, the identification of cysts in the retinal layers is
Niloofarsadat Mousavi +5 more
doaj +1 more source
Memory-efficient 3D multi-resolution image enhancement and processing to increase throughput [PDF]
, 2008 Advanced signal processing such as multi-resolution decomposition and three-dimensional processing and data sets are gradually becoming a integral part of medical imaging.
With, de, P.H.N. +4 more
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Component-Based Modeling and Processing of Medical Ultrasound Signals [PDF]
IEEE Transactions on Signal Processing, 2017 Component-based modeling and processing can be found in many signal and image processing applications. In this paper, we apply this approach to cardiac medical ultrasound imaging. We show how the raw data generated in the ultrasound scanning process can be modeled as consisting of two distinct components.
Yael Yankelevsky +2 more
openaire +1 more source
Real-Time Tracking of Multiple Acoustical Sources Utilising Rao-Blackwellised Particle Filtering [PDF]
, 2021 This paper proposes a system for localising and tracking multiple simultaneous acoustical sound sources in the spherical harmonic domain, intended as a precursor for developing parametric sound-field editors and spatial audio effects.
Leo McCormack +7 more
core +1 more source
Current Directions in Biomedical Engineering, 2020 This study presents a novel method for estimating the signal quality of photoplethysmographic (PPG) signals. For this purpose a robust classifier is implemented and evaluated by using finger- and inear-PPG. A new procedure is proposed, which uses feature
Massmann Jonas +2 more
doaj +1 more source
Sensors, 2017 Automatic detection of ectopic beats has become a thoroughly researched topic, with literature providing manifold proposals typically incorporating morphological analysis of the electrocardiogram (ECG).
Maik Pflugradt +3 more
doaj +1 more source
Red-lesion extraction in retinal fundus images by directional intensity changes’ analysis
Scientific Reports, 2021 Diabetic retinopathy (DR) is an important retinal disease threatening people with the long diabetic history. Blood leakage in retina leads to the formation of red lesions in retina the analysis of which is helpful in the determination of severity of ...
Maryam Monemian, Hossein Rabbani
doaj +1 more source
From Error Probability to Information Theoretic (Multi-Modal) Signal Processing [PDF]
We propose an information theoretic model that unifies a wide range of existing information theoretic signal processing algorithms in a compact mathematical framework. It is mainly based on stochastic processes, Markov chains and error probabilities. The
Thiran, J., Butz, T.
core +1 more source
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 +3 more
doaj +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 +3 more
doaj +1 more source