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  1. No Access

    Article

    LARLUS: laparoscopic augmented reality from laparoscopic ultrasound

    This research endeavors to improve tumor localization in minimally invasive surgeries, a challenging task primarily attributable to the absence of tactile feedback and limited visibility. The conventional solu...

    Mohammad Mahdi Kalantari, Erol Ozgur in International Journal of Computer Assisted… (2024)

  2. Article

    Open Access

    Clinical evaluation of DIAGNOVIR SARS-CoV-2 ultra-rapid antigen test performance compared to PCR-based testing

    Coronavirus Disease-19 (COVID-19) is a highly contagious infectious disease caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The development of rapid antigen tests has contributed to...

    Ali Aytac Seymen, Ezgi Gulten, Erol Ozgur, Bülend Ortaç, Irem Akdemir in Scientific Reports (2023)

  3. No Access

    Article

    A case series study of augmented reality in laparoscopic liver resection with a deformable preoperative model

    Previous work in augmented reality (AR) guidance in monocular laparoscopic hepatectomy requires the surgeon to manually overlay a rigid preoperative model onto a laparoscopy image. This may be fairly inaccurat...

    Le Roy Bertrand, Mourad Abdallah, Yamid Espinel, Lilian Calvet in Surgical Endoscopy (2020)

  4. No Access

    Article

    Combining Visual Cues with Interactions for 3D–2D Registration in Liver Laparoscopy

    Augmented Reality (AR) in monocular liver laparoscopy requires one to register a preoperative 3D liver model to a laparoscopy image. This is a difficult problem because the preoperative shape may significantly...

    Yamid Espinel, Erol Özgür, Lilian Calvet in Annals of Biomedical Engineering (2020)

  5. No Access

    Article

    Parking objects by pushing using uncalibrated visual servoing

    Pushing is one of the strategies to perform robotic manipulation when the object is too large or too heavy. Motivated by this, we address the problem of how to push an object on a plane to a target pose with t...

    Gonzalo López-Nicolás, Erol Özgür, Youcef Mezouar in Autonomous Robots (2019)

  6. No Access

    Article

    Preoperative liver registration for augmented monocular laparoscopy using backward–forward biomechanical simulation

    Augmented reality for monocular laparoscopy from a preoperative volume such as CT is achieved in two steps. The first step is to segment the organ in the preoperative volume and reconstruct its 3D model. The s...

    Erol Özgür, Bong** Koo, Bertrand Le Roy in International Journal of Computer Assisted… (2018)

  7. No Access

    Article

    Preliminary trial of augmented reality performed on a laparoscopic left hepatectomy

    Laparoscopic liver surgery is seldom performed, mainly because of the risk of hepatic vein bleeding or incomplete resection of the tumour. This risk may be reduced by means of an augmented reality guidance sys...

    Priyanka Phutane, Emmanuel Buc, Karine Poirot, Erol Ozgur in Surgical Endoscopy (2018)

  8. No Access

    Article

    A Study on Dexterous Grasps via Parallel Manipulation Analogy

    This paper proposes a new approach for studying the dexterous gras** mechanisms via parallel manipulation analogy. The approach exploits the theories already developed for the dexterous robotic hands and the...

    Erol Özgür, Grigore Gogu, Youcef Mezouar in Journal of Intelligent & Robotic Systems (2017)

  9. No Access

    Article

    Particle-SfT: A Provably-Convergent, Fast Shape-from-Template Algorithm

    The Shape-from-Template (SfT) problem is to recover the 3D shape of a deformable object from a single image, given a 3D template and a deformation constraint. We propose Particle-SfT, a new SfT algorithm which...

    Erol Özgür, Adrien Bartoli in International Journal of Computer Vision (2017)

  10. Chapter and Conference Paper

    Deformable Registration of a Preoperative 3D Liver Volume to a Laparoscopy Image Using Contour and Shading Cues

    The deformable registration of a preoperative organ volume to an intraoperative laparoscopy image is required to achieve augmented reality in laparoscopy. This is an extremely challenging objective for the liv...

    Bong** Koo, Erol Özgür, Bertrand Le Roy in Medical Image Computing and Computer Assis… (2017)

  11. Article

    Open Access

    Label-Free Biosensing with High Selectivity in Complex Media using Microtoroidal Optical Resonators

    Although label-free biosensors comprised of optical microcavities inherently possess the capability of resolving molecular interactions at individual level, this extreme sensitivity restricts their convenience...

    Erol Ozgur, Pelin Toren, Ozan Aktas, Ersin Huseyinoglu in Scientific Reports (2015)

  12. No Access

    Article

    The interplay between plasma membrane and endoplasmic reticulum Ca2+ATPases in agonist-induced temporal Ca2+ dynamics

    A change in the intracellular free Ca2+ concentration ([Ca2+]i) functions as a transmitter for signal transduction and shows a broad temporal pattern. Even genetically homogeneous cell types show different Ca2+ r...

    Figen Amber Cicek, Ekin Ozge Ozgur, Erol Ozgur in Journal of Bioenergetics and Biomembranes (2014)

  13. Article

    Erratum: Arrays of indefinitely long uniform nanowires and nanotubes

    Nature Materials 10, 494–501 (2011); published online: 12 June 2011; corrected after print: 19 July 2011. In the version of this Letter previously published, the key for Fig. 5c was incorrect. This error has n...

    Mecit Yaman, Tural Khudiyev, Erol Ozgur, Mehmet Kanik, Ozan Aktas in Nature Materials (2011)

  14. No Access

    Article

    Arrays of indefinitely long uniform nanowires and nanotubes

    Nanowires have many applications across a number of disciplines. So far, their length has been largely limited to mesoscale dimensions. Through the adaption of an iterative fibre-drawing process it is now poss...

    Mecit Yaman, Tural Khudiyev, Erol Ozgur, Mehmet Kanik, Ozan Aktas in Nature Materials (2011)

  15. No Access

    Article

    3D object recognition using invariants of 2D projection curves

    This paper presents a new method for recognizing 3D objects based on the comparison of invariants of their 2D projection curves. We show that Euclidean equivalent 3D surfaces imply affine equivalent 2D project...

    Mustafa Unel, Octavian Soldea, Erol Ozgur, Alp Bassa in Pattern Analysis and Applications (2010)