Yazar "Osman, Onur" için listeleme
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Computer-aided detection (CADx) for plastic deformation fractures in pediatric forearm
Zhou, Yuwei; Teomete, Uygar; Dandin, Özgür; Osman, Onur; Dandinoğlu, Taner; Bağcı, Ulaş; Zhao, Weizhao (Elsevier, 2016)Bowing fractures are incomplete fractures of tubular long bones, often observed in pediatric patients, where plain radiographic film is the non-invasive imaging modality of choice in routine radiological workflow. Due to ... -
Detection of Injured Kidney in Computed Tomography
Tulum, Gökalp; Dandin, Özgür; Ergin, Tuncer; Teomete, Uygar; Cüce, Ferhat; Osman, Onur (IEEE, 2017)Timely and accurate diagnosis of intraabdominal organ injuries due to trauma is critical. Computer Assisted Detection (CAD) systems are rapidly developing techniques to segment the organs or to detect the pathologies in ... -
Determining MUAP Activity Corridor In Scanning EMG Recordings
Artug, N. Tugrul; Bolat, Bulent; Osman, Onur; Goker, Imran; Baslo, M. Baris (Institute of Electrical and Electronics Engineers Inc., 2015)In scanning EMG recordings there are more than one motor unit activity which is recorded by concentric needle electrode. Especially for determining features of a motor unit action potential (MUAP) such as phase duration ... -
Determining Phase Duration of Scanning EMG Signals
Artuğ, Tuğrul; Osman, Onur; Göker, İmran; Baslo, Barış; Bolat, Bülent (IEEE, 2015)There are more than one motor unit activities recorded simultaneously during scanning EMG recordings. It is not possible to determine the phase duration correctly by inspecting only one sweep. The other motor unit activities, ... -
Determining the Effect of Luminance on the EEG Measurement with STFT Method
Eroğlu, Kübra; Kurt, Pınar; Kayıkcıoğlu, Temel; Osman, Onur (IEEE, 2015)The aim of this study is to observe the impact on the emotional evaluation of luminance, which is a perceptual feature of visual stimuli from electroencefelography (EEG) data recorded. EEG recordings obtained from 13 healthy ... -
Effect of brightness of visual stimuli on EEG signals
Eroğlu, Kübra; Kayıkçıoğlu, Temel; Osman, Onur (Elsevier, 2020)The aim of this study was to examine brightness effect, which is the perceptual property of visual stimuli, on brain responses obtained during visual processing of these stimuli. For this purpose, brain responses of the ... -
The effect of recording site on extracted features of motor unit action potential
Artuğ, N. Tuğrul; Göker, İmran; Bolat, Bülent; Osman, Onur; Kocasoy Orhan, Elif; Baslo, M. Barış (Elsevier, 2016)Motor unit action potential (MUAP), which consists of individual muscle fiber action potentials (MFAPs), represents the electrical activity of the motor unit. The values of the MUAP features are changed by denervation and ... -
Facial Recognition in Hexagonal Domain – A Frontier Approach
Cevik, Taner; Cevik, Nazife; Rasheed, Jawad; Abu-Mahfouz, Adnan M.; Osman, Onur (Institute of Electrical and Electronics Engineers Inc., 2023)Many face-recognition (FR) methods have been proposed thus far. Although FR has achieved wisdom in square pixel-based image processing (SIP) due to many studies, this wisdom has not been transferred to Hexagonal pixel-based ... -
Feature Extraction and Classification of Neuromuscular Diseases Using Scanning EMG
Artuğ, Necdet Tuğrul; Bolat, Bülent; Osman, Onur; Göker, İmran; Tulum, Gökalp; Baslo, Mehmet Barış (IEEE, 2014)In this study a new dataset are prepared for neuromuscular diseases using scanning EMG method and four new features are extracted. These features are maximum amplitude, phase duration at the maximum amplitude, maximum ... -
Fully Automated Segmentation of Renal, Cortex and Medulla
Tulum, Gökalp; Artuğ, N. Tuğrul; Osman, Onur; Dandin, Özgür; Yılmaz, Vural Taner; Kısaoğlu, Abdullah; Demiryılmaz, İsmail; Yaprak, Muhittin; Aydınlı, Bülent; Ergin, Tuncer; Cüce, Ferhat (IEEE, 2018)It is assume that volumes of cortex and medulla are related with recovery of the kidney after transplantation. In this work, a fully automated segmentation and volume calculation method is proposed for determining renal ... -
Improved exploiting modification direction steganography for hexagonal image processing
Cevik, Nazife; Cevik, Taner; Osman, Onur; Gurhanli, Ahmet; Nematzadeh, Sajjad; Sahin, Fatih (King Saud bin Abdulaziz University, 2022)Steganography has made significant advances in the Square-pixel-based Image Processing (SIP) domain, but to our knowledge, no work has yet been done in Hexel (Hexagonal Pixel)-based Image Processing (HIP). This paper ... -
Investigation of Luminance Effect on the Emotional Assessment Using Hjorth Descriptors
Eroğlu, Kübra; Kurt, Pınar; Kayıkcıoğlu, Temel; Osman, Onur (IEEE, 2015)The aim of this study is to investigate the impact of luminance level on the emotional evaluation from electroencephalography (EEG) records. EEG recordings obtained from 31 healty partipicants were used in this study. ... -
Investigation of Luminance Effect on the Emotional Assessment Using Principle Components Analysis Method
Eroğlu, Kübra; Kurt, Pınar; Kayıkçıoğlu, Temel; Osman, Onur (IEEE, 2017)The purpose of the study is to observe the effect of the level of luminance on the emotional evaluation (positive, negative, neutral) in electroencephalography (EEG) records. EEG records of 31 healthy volunteers were used ... -
Investigation of the Effect of Luminance Level on Emotional Evaluation by P300 Waves Observed in EEG Records
Eroğlu, Kübra; Kurt, Pınar; Kayıkçıoğlu, Temel; Osman, Onur (IEEE, 2017)In this study, the effect of the luminance level on the emotional evaluation was investigated using P300 waves observed in electroencephalography (EEG) records. EEG records of 31 helathy individuals were used in this study. ... -
Investigation The Effect of Luminance Level on the Emotional Assesment in EEG Recordings Using Wavelet Transform
Eroğlu, Kübra; Kurt, Pınar; Kayıkçıoğlu, Temel; Osman, Onur (IEEE, 2016)The aim of this study is to investigate the impact of luminance level on the emotional evaluation from electroencefelography (EEG) data recorded. EEG recordings obtained from 13 healthy individuals were used in the study. ... -
Karaciğer görüntülerinin geometrik dönüşüm yöntemleri kullanılarak benzerliklerinin değerlendirilmesi
Palabaş, Tuğba; Osman, Onur; Ergin, Tuncer; Teomete, Uygar; Dandin, Özgür; Aydın, Nizamettin (Institute of Electrical and Electronics Engineers Inc., 2016)In this study, similarity rates of the liver images are determined using 3D geometric transformation methods and numerical comparisons are made. Three geometric transformation methods scaling, rotating, and translating are ... -
Linear Modeling of Multiple Sclerosis and Its Subgroubs
Karaca, Yeliz; Osman, Onur; Karabudak, Rana (Turkish Neurological Soc., 2015)Objective: In this study, 120 patients diagnosed with clinical multiple sclerosis (MS) of relapsing remitting type (RRMS), secondary progressive type (SPMS) and primary progressive type (PPMS) were examined, as well as 19 ... -
Lung segmentation algorithm for CAD system in CTA images
Özkan, H.; Osman, Onur; Şahin, S.; Atasoy, M.M.; Barutca, H.; Boz, A.F.; Olsun, A. (2011)In this study, we present a new and fast algorithm for lung segmentation using CTA images. This process is quite important especially at lung vessel segmentation, detection of pulmonary emboly, finding nodules or segmentation ... -
Modeling of gravity anomalies due to 2D geological structures using Genetic algorithm
Osman, Onur; Albora, A. Muhittin (Istanbul University, 2015)In this paper, a new modeling technique is introduced using Genetic Algorithm (GA). In this method, Genetic algorithm (GA) is modified and used as an optimization method in geophysics applications. The problem at hand is ... -
New features for scanned bioelectrical activity of motor unit in health and disease
Artuğ, Necdet Tuğrul; Göker, İmran; Bolat, Bülent; Osman, Onur; Orhan, Elif Kocasoy; Baslo, M. Barış (Elsevier, 2018-03)The present study aims to find new features that support the differential diagnosis of neuromuscular diseases. Scanning EMG is an experimental method developed for understanding the motor unit organization and for observing ...