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Orcan Alpar

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2020 – today

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2024
[j19]
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Orcan Alpar:
Nakagami-fuzzy imaging for grading brain tumors by analyzing fractal complexity. Appl. Soft Comput. 165: 112097 (2024)
[j18]
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Orcan Alpar, Ondrej Soukup, Pavel Ryska, Radka Dvorakova, Jiri Jandura, Martin Valis, Ondrej Krejcar:
Nakagami imaging and morphing for multiple sclerosis lesion volume estimation. Expert Syst. Appl. 235: 121250 (2024)
[j17]
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Orcan Alpar:
Content-aware Nakagami morphing for incremental brain MRI. Knowl. Based Syst. 291: 111575 (2024)
2023
[j16]
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Orcan Alpar:
A mathematical fuzzy fusion framework for whole tumor segmentation in multimodal MRI using Nakagami imaging. Expert Syst. Appl. 216: 119462 (2023)
[c20]
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Orcan Alpar, Ondrej Krejcar:
Whole Tumor Area Estimation in Incremental Brain MRI Using Dilation and Erosion-Based Binary Morphing. IWBBIO (1) 2023: 131-142
[c19]
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Orcan Alpar, Ondrej Krejcar:
Three-Dimensional Representation and Visualization of High-Grade and Low-Grade Glioma by Nakagami Imaging. IWBBIO (1) 2023: 143-154
2022
[j15]
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Orcan Alpar, Rafael Dolezal, Pavel Ryska, Ondrej Krejcar:
Low-contrast lesion segmentation in advanced MRI experiments by time-domain Ricker-type wavelets and fuzzy 2-means. Appl. Intell. 52(13): 15237-15258 (2022)
[j14]
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Orcan Alpar:
Signature barcodes for online verification. Pattern Recognit. 124: 108426 (2022)
[j13]
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Orcan Alpar, Rafael Dolezal, Pavel Ryska, Ondrej Krejcar:
Nakagami-Fuzzy imaging framework for precise lesion segmentation in MRI. Pattern Recognit. 128: 108675 (2022)
2021
[j12]
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Orcan Alpar, Ondrej Krejcar, Rafael Dolezal:
Distribution-based imaging for multiple sclerosis lesion segmentation using specialized fuzzy 2-means powered by Nakagami transmutations. Appl. Soft Comput. 108: 107481 (2021)
[j11]
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Orcan Alpar:
Monitoring and fuzzy warning system for risk prevention of Guyon's canal syndrome. Biomed. Signal Process. Control. 64: 102228 (2021)
[j10]
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Orcan Alpar:
Biometric keystroke barcoding: A next-gen authentication framework. Expert Syst. Appl. 177: 114980 (2021)
2020
[c18]
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Orcan Alpar, Ondrej Krejcar:
Window Functions in Rhythm Based Biometric Authentication. IWBBIO 2020: 108-118
[c17]
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Orcan Alpar, Ondrej Krejcar:
Pin-Code Authentication by Local Proximity Based Touchstroke Classifier. IWBBIO 2020: 350-361

2010 – 2019

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2019
[j9]
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Orcan Alpar:
A novel fuzzy curvature method for recognition of anterior forearm subcutaneous veins by thermal imaging. Expert Syst. Appl. 120: 33-42 (2019)
[j8]
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Orcan Alpar:
TAPSTROKE: A novel intelligent authentication system using tap frequencies. Expert Syst. Appl. 136: 426-438 (2019)
2018
[j7]
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Orcan Alpar, Ondrej Krejcar:
Online signature verification by spectrogram analysis. Appl. Intell. 48(5): 1189-1199 (2018)
[j6]
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Orcan Alpar:
Online signature verification by continuous wavelet transformation of speed signals. Expert Syst. Appl. 104: 33-42 (2018)
[j5]
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Orcan Alpar:
Biometric touchstroke authentication by fuzzy proximity of touch locations. Future Gener. Comput. Syst. 86: 71-80 (2018)
[c16]
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Orcan Alpar, Ondrej Krejcar:
A Comparative Study on Chrominance Based Methods in Dorsal Hand Recognition: Single Image Case. IEA/AIE 2018: 711-721
[c15]
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Orcan Alpar, Ondrej Krejcar:
Frequency and Time Localization in Biometrics: STFT vs. CWT. IEA/AIE 2018: 722-728
[c14]
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Orcan Alpar, Ondrej Krejcar:
Thermal Imaging for Localization of Anterior Forearm Subcutaneous Veins. IWBBIO (2) 2018: 243-254
[c13]
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Orcan Alpar, Ondrej Krejcar:
Detection of Irregular Thermoregulation in Hand Thermography by Fuzzy C-Means. IWBBIO (2) 2018: 255-265
2017
[j4]
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Orcan Alpar:
Frequency spectrograms for biometric keystroke authentication using neural network based classifier. Knowl. Based Syst. 116: 163-171 (2017)
[c12]
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Orcan Alpar, Ondrej Krejcar:
A New Feature Extraction in Dorsal Hand Recognition by Chromatic Imaging. ACIIDS (2) 2017: 266-275
[c11]
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Orcan Alpar, Ondrej Krejcar:
Detection of Raynaud's Phenomenon by Thermographic Testing for Finger Thermoregulation. ACIIDS (2) 2017: 475-484
[c10]
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Orcan Alpar, Ondrej Krejcar:
Fuzzy warning system against ulnar nerve entrapment. FUZZ-IEEE 2017: 1-6
[c9]
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Orcan Alpar, Ondrej Krejcar:
Biometric Keystroke Signal Preprocessing Part I: Signalization, Digitization and Alteration. IEA/AIE (1) 2017: 267-276
[c8]
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Orcan Alpar, Ondrej Krejcar:
Biometric Keystroke Signal Preprocessing Part II: Manipulation. IEA/AIE (1) 2017: 289-294
[c7]
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Orcan Alpar, Ondrej Krejcar:
Quantization and Equalization of Pseudocolor Images in Hand Thermography. IWBBIO (1) 2017: 397-407
[c6]
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Orcan Alpar, Ondrej Krejcar:
Superficial Dorsal Hand Vein Estimation. IWBBIO (1) 2017: 408-418
2016
[j3]
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Orcan Alpar, Radoslav Stojic:
Intelligent collision warning using license plate segmentation. J. Intell. Transp. Syst. 20(6): 487-499 (2016)
[c5]
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Orcan Alpar, Ondrej Krejcar:
Dorsal Hand Recognition Through Adaptive YCbCr Imaging Technique. ICCCI (2) 2016: 262-270
[c4]
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Orcan Alpar, Ondrej Krejcar:
Virtual Road Condition Prediction Through License Plates in 3D Simulation. ICCCI (1) 2016: 269-278
[c3]
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Orcan Alpar, Ondrej Krejcar:
Hidden Frequency Feature in Electronic Signatures. IEA/AIE 2016: 145-156
2015
[j2]
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Orcan Alpar:
Intelligent biometric pattern password authentication systems for touchscreens. Expert Syst. Appl. 42(17-18): 6286-6294 (2015)
[c2]
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Orcan Alpar, Ondrej Krejcar:
Biometric Swiping on Touchscreens. CISIM 2015: 193-203
[c1]
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Orcan Alpar, Ondrej Krejcar:
Pattern Password Authentication Based on Touching Location. IDEAL 2015: 395-403
2014
[j1]
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Orcan Alpar:
Keystroke recognition in user authentication using ANN based RGB histogram technique. Eng. Appl. Artif. Intell. 32: 213-217 (2014)

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