ELİF HOCAOĞLU ÇETİNSOY Italian Institute of Technology (IIT), Advanced Robotic Department, Via Morego, 30 16163 Genova, Italy E-mail: [email protected] http://myweb.sabanciuniv.edu/elifhocaoglu RESEARCH INTEREST Tele-impedance control, design of hand prosthesis and variable stiffness actuators, sEMG based interface, physical human-machine interaction, design of data acquisition device for sEMG signals, feature extraction and classification problems, embedded system design. EDUCATION 2008 Spring 2014 Summer Ph.D., Mechatronics Engineering Sabancı University - Istanbul, Turkey Dissertation: Design and Tele-Impedance Control of a Variable Stiffness Transradial Hand Prosthesis Supervisor: Assoc. Prof. Volkan Patoğlu A variable stiffness transradial hand prosthesis is designed and Contributions implemented. The transradial hand prosthesis features a low cost, robust, adaptive, customizable and lightweight design. The tele-impedance control of the variable stiffness transradial hand prosthesis is performed through a natural human-machine interface based on surface electromyography (sEMG) signals. This interface enables the amputee to modulate the impedance of the prosthetic limb naturally and automatically to properly match the requirements of the task at hand and regulate the position of the hand prosthesis intentionally. A set of healthy human subject experiments is designed and conducted to investigate the efficacy of user modulated stiffness in increasing performance of amputees while performing tasks. 2005 Spring 2008 Fall M.Sc., Mechatronics Engineering Sabancı University - Istanbul, Turkey Thesis: Data Acquisition and Feature Extraction for Classification of Prehensile sEMG Signals for Control of a Multifunctional Prosthetic Hand Supervisor: Assoc. Prof. Kemalettin Erbatur Designed and fabricated an sEMG Data Acquisition Device which provides high SNR measurements Designed and conducted human subject experiments to evaluate performance of the sEMG Data Acquisition Device analyzing the measured sEMG data under classification algorithms. Implemented various category of feature extraction approaches for sEMG Signals, i.e., Temporal Approaches, Spectral Approaches (Time Domain, Frequency Domain, Time-Frequency Domain, and Multiresolution Analysis) Conducted pattern classification algorithms for the sEMG data (Artificial Neural Networks (ANN), Support Vector Machine (SVM) Algorithms) 2005 2000 B.Sc., Mechanical Engineering Yıldız Technical University - Istanbul / Turkey Thesis: PLC based control of a Pressure Test Device Page 1 of 8 HONORS AND AWARDS 2005 Ranked second in the Department of Mechanical Engineering graduating class of 2005, Yıldız Technical University (GPA:3,66/4) 2005 Awarded honors certificate for completing Bachelors of Science in Department of Mechanical Engineering 2003 Qualified for double major undergraduate program with Economics in Yıldız Technical University 2005-2008 Awarded by academic merit based Yousef Jameel Scholarship 2008-2010 Received project scholarship 2010-2012 Sabancı University Full Scholarship for Graduate Education 2012-2014 TUBITAK Project Scholarship for Graduate Education 2012 Travel Scholarships from TUBITAK for ROBIO 2012, Guangzhou, China 2012 Travel Scholarships from TUBITAK for TOK 2012, Niğde, Turkey EXPERIENCE 2008 Spring present Research Assistant Human Machine Interaction Laboratory at Sabancı University Design & Fabrication Designed variable stiffness transradial hand prosthesis. Implemented low-cost, lightweight, dexterous finger design. Designed variable stiffness actuator mechanism to be integrated in the transradial hand prosthesis. Designed and implemented sEMG data acquisition device. Designed human reflex identification experiment setup. Control Introduced and implemented tele-impedance control such that stiffness modulation takes place naturally and automatically without requiring amputees' attention and diminishing their functional capability, while position of the prosthesis is regulated intentionally. Implemented impedance/admittance control to represent various environmental conditions during the human subject experiments. Human Machine Interface Designed natural human machine interface through sEMG signals such that the position of the hand prosthesis is regulated intentionally by the amputee through the estimated position of chest and shoulder muscles, extracted from sEMG signals of the trapezius and pectoralis major muscles and impedance of the hand is modulated through the impedance measurements of the biceps and triceps antagonistic muscle groups. Executed sEMG signals as a performance metric to evaluate the finger exoskeleton under various conditions. Executed sEMG signals to emphasize and validate the estimated intention levels of subjects through EEG signals based on the performed task. Page 2 of 8 Human Subject Experiments Designed experiments to identify human reflex parameters under varying environmental conditions. Designed task activities to evaluate the subject's performance during the real-time experiments. Designed and performed human-subject experiments to observe subject’s behavior under different environmental conditions provided by the virtual and physical experimental setup. Analyzed results using statistical analysis tools (ttest, ANOVA). VR Designed and performed virtual reality simulations to define various categories of tasks to subject during the human subject experiments. TUBITAK 1002 -Researcher Completed all research studies proposed in the application of TUBITAK 1002 Grant, titled as "Performance Comparison of Feature Extraction Methods to be used in Prehensile sEMG Signals for Control of a Multifunctional Prosthetic Hand" (2009-2011). 2005 Spring 2008 Fall Research Assistant Mechatronics Research Laboratory at Sabancı University Design of sEMG Data Acquisition Device Designed and implemented sEMG data acquisition (DAQ) device with high signal to noise ratio (SNR) to be used in the further studies of hand prosthesis. It can be customized based on the size of the hand prosthesis to embed DAQ inside the prosthetic limb. Feature Extraction and Classification Problems Implemented various feature extraction methods in time, frequency and time-frequency domain to extract the best feature of sEMG signals representing hand motions responsible for different grasping types. Implemented classification algorithms, SVM and ANN, to functionalize hand prosthesis with four different types of finger movements. 2005 2012 Teaching Assistant Faculty of Engineering and Natural Sciences at Sabancı University ME 407 – Embedded Systems ME 411 – Mechanical System Design ME 301 – Mechanical Systems I ME 312 – Analysis and Synthesis of Mechanisms ENS 203 – Circuits I ENS 204 – Mechanics MATH 101 – Calculus I 08/ 2004 09/ 2004 Intern at Beko Elektronik Studied Pneumatic and Automation Systems 07/ 2004 08/ 2004 Intern at Mercedes Benz Studied Automation - Automobile Industry and Business Organization 09/ 2003 Intern at Emek Çelik Döküm San. ve Tic. Ltd. Studied Manufacturing (Moulding and Casting) Page 3 of 8 08/ 2003 Intern at NOVA Group Studied Manufacturing (Welding) 06/ 2003 08/ 2003 Intern at Ford Otosan Studied CAD and Manufacturing RELATED COURSE PROJECTS 2010 Fall EE 683 Optimal Control Lecturer: Assoc. Prof. Volkan Patoğlu Optimal Feedback Control of Biomechanical Systems 2010 Fall CS 512 Machine Learning Lecturer: Assoc. Prof. Ayşe Berrin Yanıkoğlu Feature Extraction and Classification of sEMG Signals 2009 Fall MAT 516 Biomaterials Science and Biocompatibility Lecturer: Assist. Prof. Alpay Taralp Carbon Nanotubes as a Biomaterial & Their Applications on Neurons 2009 Fall MAT 521 Tribology Lecturer: Assoc. Prof. F. Mahmut Akşit Grasp Analysis and Contact Model of Fingers 2009 Fall EE521 Kinematics and Dynamics of Machines Lecturer: Assoc. Prof. Volkan Patoğlu Mechanical Design of Prosthetic Hand Based on Grasping Capability 2009 Spring EE528 Nonlinear Systems Lecturer: Assoc. Prof. Kemalettin Erbatur Comparison of Control Methods with respect to their derivation principles, performance, disturbance rejection properties, performance under modeling uncertainties, smoothness of control signals and computational effectiveness. 2008 Fall EE561 DSP Design and Implementation Lecturer: Assoc. Prof. Ahmet Onat FIR- IIR Filter and FFT Implementation Using C31 Processori Interrupt Driven Input & Output FIR Implementation and Real Time FFT Implementation Using TMS320 C6711 2007 Spring EE 563 Digital Image Processing Lecturer: Assoc. Prof. Müjdat Çetin Image Enhancement on Mammography 2007 Spring EE 621 Sliding Mode Control Lecturer: Prof. Asif Sabanovic Hybrid Position & Force Control of Planar Elbow Manipulator on Vertical Plane 2006 Fall EE 524 Digital Control Systems Lecturer: Assoc. Prof. Kemalettin Erbatur Implementation of Servo Motor Control with dSpace1103 (PID, observer design and state feedback design) Position and Velocity Control of SCARA Robot in real time experiment Page 4 of 8 2006 Fall EE 573 Biomedical Instrumentation Lecturer: Assoc. Prof. Ayhan Bozkurt Simulation of Hodgkin-Huxley Equations for Cell Action Potentials / Characterization of an Ag-AgCl ECG Electrode / Characterization of Homebrew Instrumentation Amplifier / An Optical Isolation Amplifier 2006 Spring EE 520 Advanced Robotics Lecturer: Assoc. Prof. Kemalettin Erbatur Kinematic and Dynamic Analysis of a Seven DoF Arm 2006 Spring EE 525 Real Time System Design Lecturer: Assoc. Prof. Ahmet Onat Gain Adaptation of Networked DC Motor Controllers Based on QOS Variations PUBLICATIONS [15] Hocaoglu, E.; and Patoglu, V.," Human Based Impedance Control Improves the Capability of Hand Prosthesis ", International Journal of Robotic Research, 2015. (Manuscript is ready) [14] Hocaoglu, E.; and Patoglu, V.," Variable Stiffness Transradial Hand Prosthesis – Part II: Tele-Impedance Control", IEEE/ASME Transactions on Mechatronics, 2014. (Manuscript is ready, to be submitted in April 2015) [13] Hocaoglu, E.; and Patoglu, V.," Variable Stiffness Transradial Hand Prosthesis – Part I: Design", IEEE/ASME Transactions on Mechatronics, 2014. (Manuscript is ready, to be submitted in April, 2015) [12] Ertas, I. H.; Hocaoglu, E.; and Patoglu, V., "AssistOn-Finger: An UnderActuated Finger Exoskeleton for Robot-Assisted Tendon Therapy", Robotica, Cambridge Journal, vol. 32, no. 8, pp. 1363-1382, 2014. DISSERTATION AND MASTER THESIS [11] Hocaoglu, E.; Design and Tele-Impedance Control of a Variable Stiffness Transradial Hand Prosthesis, Ph.D. Dissertation, Sabancı University, Istanbul, TURKEY, 2014. [10] Hocaoglu, E.; "Data Acquisition and Feature Extraction for Classification of Prehensile sEMG Signals for Control of a Multifunctional Prosthetic Hand", M.Sc. Thesis, Sabancı University, Istanbul, TURKEY, 2008. INTERNATIONAL REFEREED CONFERENCE PAPERS [9] Koyas, E.; Hocaoglu, E.; Cetin, M.; Patoglu, V., "Detection of task difficulty from intention level information in the EEG features," Signal Processing and Communications Applications Conference (SIU), pp.1873-1876, April 2014. [8] Koyas, E.; Hocaoglu, E.; Patoglu, V.; Cetin, M., "Detection of intention level in response to task difficulty from EEG signals",IEEE International Workshop on Machine Learning for Signal Processing (MLSP),pp.1-6, 22-25 Sept.2013. Page 5 of 8 [7] Hocaoglu, E.; Patoglu, V., "Tele-impedance control of a variable stiffness prosthetic hand," 2012 IEEE International Conference on Robotics and Biomimetics (ROBIO), pp.1576-1582, 11-14 Dec. 2012. [6] Ertas, IH.; Hocaoglu, E.; Barkana, D.E.; Patoglu, V., "Finger exoskeleton for treatment of tendon injuries," IEEE International Conference on Rehabilitation Robotics, 2009. ICORR 2009. , pp.194-201, 23-26 June 2009. NATIONAL REFEREED CONFERENCE PAPERS [5] Hocaoglu, E.; and Patoglu, V., "Dirsek Altı El Protezlerinin Tasarımı ve Uzaktan Empedans Kontrolü", In Türkiye Otonom Robotlar Konferansı (TORK) 2014, Ankara: Orta Doğu Teknik Üniversitesi, 2014. [4] Hocaoglu, E.; and Patoglu, V., "Değişken Esnekliğe Sahip Eyleyici Kontrollü Uyarlanabilir El Protezi Tasarımı", In Otomatik Kontrol Ulusal Toplantisi (TOK 2013), Malatya: İnönü Üniversitesi, 2013. [3] Hocaoglu, E.; and Patoglu, V., "Degisken Esneklige Sahip El Protezlerinin Uzaktan Empedans Kontrolu ", In Otomatik Kontrol Ulusal Toplantisi (TOK 2012), Niğde: Niğde Üniversitesi , 2012. [2] Hocaoglu, E., "Çok Fonksiyonlu Protez Ellerde Kullanılmak Üzere yEMG Sinyalinden Öznitelik Çıkarma Metotlarının Yapay Sinir Ağı ve Destek Vektör Makinesi Algoritmalarına Göre Karşılaştırılması", In Otomatik Kontrol Ulusal Toplantisi (TOK 2011), İzmir,Türkiye: Dokuz Eylül Üniversitesi, 2011. [1] Hocaoglu, E., "Çok Fonksiyonlu Protez Ellerde Kullanılmak Üzere yEMG Sinyalinden Öznitelik Çıkarma Metotlarının Performanslarına Göre Karşılaştırılması", In Otomatik Kontrol Ulusal Toplantisi (TOK 2008) , Istanbul: Istanbul Teknik Üniversitesi, pp. 436-441, 2008. PROFESSIONAL ACTIVITIES ATTENDED WORKSHOPS & SCHOOLS SAPHARI Natural Machine Motion Initiative (NMMI) Winter School, Rome, Italy, February, 2015. REVIEWER JOURNALS IEEE Transactions on Haptics, 2015 Cambridge Journals - Robotica, 2013 CONFERENCES IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2015 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2014 IEEE International Conference on Robotics and Automation (ICRA), 2013 Page 6 of 8 MEMBERSHIPS IEEE Member (2013-present) IEEE RAS Membership INVITED TALKS Yildiz Technical University, 16/01/2015 Design and Tele-Impedance Control of a Variable Stiffness Transradial Hand Prosthesis Dogus University, 21/11/2013 Biyomimetik Teknolojisinin Ürünü: El Protezleri SKILLS COMPUTER SOFTWARE Proficient (used on a daily basis for projects) Matlab, SolidWorks, Quanser Real time Tools, Altium, Eagle, 3D Lightyear Competent (moderate-sized scripts and semester or longer projects) C++, L T X, SPSS, Autolev, AutoCAD Basic (small programs and scripts) Mathematica, MAPLE, C, C#, TOMLAB, Assembly, SolidCAM Operating Systems and Misc. Windows, MS Office, Adobe Suite, Linux LANGUAGES Turkish (Native), English (Advanced), French (Basic), Italian (Basic) Page 7 of 8 REFERENCES Volkan Patoğlu Associate Professor Mechatronics Engineering Sabancı University - İstanbul, Turkey E-mail: [email protected] Phone: +90-216-483-9604 Müjdat Çetin Associate Professor Electronics Engineering Sabancı University - İstanbul, Turkey E-mail: [email protected] Phone: +90-216-483-9594 Mahmut F. Akşit Associate Professor Mechatronics Engineering Sabancı University - Istanbul, Turkey E-mail: [email protected] Phone: +90-216-483-9598 Duygun Erol Barkana Associate Professor Electrical and Electronics Engineering Yeditepe University - İstanbul, Turkey E-mail: [email protected] Phone: +90-216-578-1741 Güllü Kızıltaş Associate Professor Mechatronics Engineering Sabancı University - Istanbul, Turkey E-mail: [email protected] Phone: +90-216-483-9584 Page 8 of 8
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