Prohlížení Publikační činnost - 13133 dle autora "Cachard, Christian"

Zobrazují se záznamy 1-11 z 11

    • 3D Ultrasound real-time monitoring of surgical tools 

      Autor: Gaufillet, Fabian; Liebgott, Hervé; Uherčík, Marián; Cervenansky, Fréderic; Kybic, Jan; Cachard, Christian
      (IEEE, 2010-10)
      To assist surgeons during their surgical operations, which involve a tool insertion, a real-time application which is able to localise the surgical tool during its movement is proposed. The position of the needle is estimated ...

    • Comparison of Methods for Tool Localization in Biological Tissue from 3D Ultrasound Data 

      Autor: Barva, Martin; Kybic, Jan; Hlaváč, Václav; Liebgott, Hervé; Cachard, Christian
      (IEEE, 2006-10)
      In medical applications, miniature surgical instruments such as needles, or electrodes are introduced into human body. The position of instrument in tissue can be estimated using 3D ultrasound. In previous publications, ...

    • Line filtering for detection of microtools in 3D ultrasound data 

      Autor: Uherčík, Marián; Kybic, Jan; Cachard, Christian; Liebgott, Hervé
      (IEEE, 2009-09)
      We propose a robust method for localization of elongated surgical tools in 3D ultrasound data based on shape analysis. The tubular structures in input data are enhanced by a line filter in the pre-processing phase. A new ...

    • Line Filtering for Surgical Tool Localization in 3D Ultrasound Images 

      Autor: Uherčík, Marián; Kybic, Jan; Zhao, Yue; Cachard, Christian; Liebgott, Hervé
      (Elsevier, 2013)
      We present a method for automatic surgical tool localization in 3D ultrasound images based on line ltering, voxel classi cation and model tting. A possible application is to provide assistance for biopsy needle or ...

    • Model Fitting Using RANSAC for Surgical Tool Localization in 3-D Ultrasound Images 

      Autor: Uherčík, Marián; Kybic, Jan; Liebgott, Hervé; Cachard, Christian
      (IEEE, 2010-08)
      Ultrasound guidance is used for many surgical interventions such as biopsy and electrode insertion. We present a method to localize a thin surgical tool such as a biopsy needle or a microelectrode in a 3-D ultrasound image. ...

    • A Multi-Frequency Approach to Increase the Native Resolution of Ultrasound Images 

      Autor: Varray, François; Cachard, Christian; Kybic, Jan; Novell, Anthony; Bouakaz, Ayache; Basset, Olivier
      (IEEE, 2012)
      In ultrasound (US), a natural competition exists between the resolution of the image and the depth-of-field (DOF) into the medium, competition which is difficult to overcome with current US probe. Using large bandwidth ...

    • Multi-resolution parallel integral projection for fast localization of a straight electrode in 3D ultrasound images 

      Autor: Uherčík, Marián; Kybic, Jan; Liebgott, Hervé; Cachard, Christian
      (IEEE, 2008-05)
      We address the problem of fast and accurate localization of miniature surgical instruments like needles or electrodes using 3D ultrasound (US). An algorithm based on maximizing a parallel integral transform (PIP) can ...

    • Neuromuscular fiber segmentation through particle filtering and discrete optimization 

      Autor: Dietenbeck, Thomas; Varray, François; Kybic, Jan; Basset, Olivier; Cachard, Christian
      (SPIE, 2014)
      We present an algorithm to segment a set of parallel, intertwined and bifurcating bers from 3D images, targeted for the identi cation of neuronal bers in very large sets of 3D confocal microscopy images. The method ...

    • Neuromuscular fiber segmentation using particle filtering and discrete optimization 

      Autor: Dietenbeck, Thomas; Varray, François; Kybic, Jan; Basset, Olivier; Cachard, Christian
      (2012)
      We present an algorithm to segment a set of parallel, intertwined and bifurcating bers from 3D images, targeted for the identi cation of neuronal bers in very large sets of 3D confocal microscopy images. The method ...

    • Parallel integral projection transform for straight electrode localization in 3-D ultrasound images 

      Autor: Barva, Martin; Uherčík, Marián; Mari, Jean-Martial; Kybic, Jan; Duhamel, Jean-René; Liebgott, Hervé; Hlaváč, Václav; Cachard, Christian
      (IEEE, 2008-07)
      In surgical practice, small metallic instruments are frequently used to perform various tasks inside the human body. We address the problem of their accurate localization in the tissue. Recent experiments using medical ...

    • Radial Radon Transform dedicated to Micro-object Localization from Radio Frequency Ultrasound Signal 

      Autor: Barva, Martin; Kybic, Jan; Mari, Jean-Martial; Cachard, Christian
      (IEEE, 2004-08)
      In this paper we describe a method for automatic electrode localization in soft tissue from a radiofrequency signal. The method exploits a property of the Radon transform (RT) that allows us to localize a line-segment in ...