The Experts below are selected from a list of 1302 Experts worldwide ranked by ideXlab platform

Feres Chaddadneto - One of the best experts on this subject based on the ideXlab platform.

  • clinical application of an open source 3d volume Rendering Software to neurosurgical approaches
    World Neurosurgery, 2017
    Co-Authors: Bruno Fernandes De Oliveira Santos, Marcos Devanir Silva Da Costa, Ricardo Silva Centeno, Sergio Cavalheiro, Manoel Antonio De Paiva Neto, Michael T Lawton, Feres Chaddadneto
    Abstract:

    Background Preoperative recognition of the anatomic individualities of each patient can help to achieve more precise and less invasive approaches. It also may help to anticipate potential complications and intraoperative difficulties. Here we describe the use, accuracy, and precision of a free tool for planning microsurgical approaches using 3-dimensional (3D) reconstructions from magnetic resonance imaging (MRI). Methods We used the 3D volume Rendering tool of a free open-source Software program for 3D reconstruction of images of surgical sites obtained by MRI volumetric acquisition. We recorded anatomic reference points, such as the sulcus and gyrus, and vascularization patterns for intraoperative localization of lesions. Lesion locations were confirmed during surgery by intraoperative ultrasound and/or electrocorticography and later by postoperative MRI. Results Between August 2015 and September 2016, a total of 23 surgeries were performed using this technique for 9 low-grade gliomas, 7 high-grade gliomas, 4 cortical dysplasias, and 3 arteriovenous malformations. The technique helped delineate lesions with an overall accuracy of 2.6 ± 1.0 mm. 3D reconstructions were successfully performed in all patients, and images showed sulcus, gyrus, and venous patterns corresponding to the intraoperative images. All lesion areas were confirmed both intraoperatively and at the postoperative evaluation. Conclusions With the technique described herein, it was possible to successfully perform 3D reconstruction of the cortical surface. This reconstruction tool may serve as an adjunct to neuronavigation systems or may be used alone when such a system is unavailable.

Elliot K Fishman - One of the best experts on this subject based on the ideXlab platform.

  • Multidetector row computed tomography and 3-dimensional volume Rendering for adult airway imaging.
    Current Problems in Diagnostic Radiology, 2002
    Co-Authors: Leo P. Lawler, Frank M. Corl, Edward F. Haponik, Elliot K Fishman
    Abstract:

    The new high-quality, large-volume data sets that can be rapidly acquired with current multidetector row computed tomography (CT) together with the latest advances in volume Rendering Software make 3-dimensional (3D) airway imaging feasible in routine clinical practice. The progress toward near-isotropic data sets and high-fidelity 3D CT volume Rendering will be illustrated through the discussion of these techniques and a depiction of their clinical applications to normal airway anatomy and disease.

  • Adenocarcinoma of the pancreas: CT imaging
    Radiologic Clinics of North America, 2002
    Co-Authors: Karen M Horton, Elliot K Fishman
    Abstract:

    CT currently plays a vital role in pancreatic cancer staging. Continued advancements in computers, scanner technology, and 3D Software have improved CT detection of smaller masses and staging. In particular, the introduction of MDCT and real-time 3D volume-Rendering Software have greatly improved the visualization of the pancreas and adjacent vasculature. This progress will continue as manufacturers introduce the next generation of scanners, which can acquire up to 32 slices per second with ever faster scan times. The impact of these new scanners on diagnostic accuracy will need to be carefully evaluated.

Alan Kendall - One of the best experts on this subject based on the ideXlab platform.

  • musical considerations in the design of 3 d sound Rendering Software
    Journal of the Acoustical Society of America, 2001
    Co-Authors: Gary S Kendall, David A Mann, Scott Robbin, Alan Kendall
    Abstract:

    The rapid growth of 3‐D‐sound technology has created a need for 3‐D audio tools which can be used by musicians and composers in much the same manner that visual artists use 3‐D graphics tools. Experience with such audio tools reveals some issues of special concern for music. For example, the rapid movement of musical sound sources can create Doppler shifts that produce harsh detunings of pitch, and the realistic Rendering of intensity loss with changing distance can cause some musical elements to be buried in the mix. Consider too that individual instruments are best spatialized in different environments—high strings in large reverberant halls, electric basses in small dry rooms—and that some musically useful spatial effects, like stereo decorrelation, are not conveniently produced with environmental models. Spatial sound Rendering Software needs to provide numerous exceptions to accurate physical modeling in order to adapt to the musical context and it must support a heterogeneous collection of musically...

  • Musical considerations in the design of 3‐D‐sound Rendering Software
    Journal of the Acoustical Society of America, 2001
    Co-Authors: Gary S Kendall, David A Mann, Scott Robbin, Alan Kendall
    Abstract:

    The rapid growth of 3‐D‐sound technology has created a need for 3‐D audio tools which can be used by musicians and composers in much the same manner that visual artists use 3‐D graphics tools. Experience with such audio tools reveals some issues of special concern for music. For example, the rapid movement of musical sound sources can create Doppler shifts that produce harsh detunings of pitch, and the realistic Rendering of intensity loss with changing distance can cause some musical elements to be buried in the mix. Consider too that individual instruments are best spatialized in different environments—high strings in large reverberant halls, electric basses in small dry rooms—and that some musically useful spatial effects, like stereo decorrelation, are not conveniently produced with environmental models. Spatial sound Rendering Software needs to provide numerous exceptions to accurate physical modeling in order to adapt to the musical context and it must support a heterogeneous collection of musically...

Bruno Fernandes De Oliveira Santos - One of the best experts on this subject based on the ideXlab platform.

  • clinical application of an open source 3d volume Rendering Software to neurosurgical approaches
    World Neurosurgery, 2017
    Co-Authors: Bruno Fernandes De Oliveira Santos, Marcos Devanir Silva Da Costa, Ricardo Silva Centeno, Sergio Cavalheiro, Manoel Antonio De Paiva Neto, Michael T Lawton, Feres Chaddadneto
    Abstract:

    Background Preoperative recognition of the anatomic individualities of each patient can help to achieve more precise and less invasive approaches. It also may help to anticipate potential complications and intraoperative difficulties. Here we describe the use, accuracy, and precision of a free tool for planning microsurgical approaches using 3-dimensional (3D) reconstructions from magnetic resonance imaging (MRI). Methods We used the 3D volume Rendering tool of a free open-source Software program for 3D reconstruction of images of surgical sites obtained by MRI volumetric acquisition. We recorded anatomic reference points, such as the sulcus and gyrus, and vascularization patterns for intraoperative localization of lesions. Lesion locations were confirmed during surgery by intraoperative ultrasound and/or electrocorticography and later by postoperative MRI. Results Between August 2015 and September 2016, a total of 23 surgeries were performed using this technique for 9 low-grade gliomas, 7 high-grade gliomas, 4 cortical dysplasias, and 3 arteriovenous malformations. The technique helped delineate lesions with an overall accuracy of 2.6 ± 1.0 mm. 3D reconstructions were successfully performed in all patients, and images showed sulcus, gyrus, and venous patterns corresponding to the intraoperative images. All lesion areas were confirmed both intraoperatively and at the postoperative evaluation. Conclusions With the technique described herein, it was possible to successfully perform 3D reconstruction of the cortical surface. This reconstruction tool may serve as an adjunct to neuronavigation systems or may be used alone when such a system is unavailable.

Sungjoo Park - One of the best experts on this subject based on the ideXlab platform.

  • Color and Illumination Compensation Scheme for Multi-view Video Service
    2019 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2019
    Co-Authors: Jongbin Park, Jong-jin Jung, Sungjoo Park
    Abstract:

    This paper deals with the problem of color and illumination compensation for multi-view video service. In particular, we focus on finding a simple and lightweight color compensation algorithm because it is more friendly for realtime service. In this paper, we developed multi-view Rendering Software and applied and tested the diagonal matrix based color compensation method. Through experiments, we confirmed that there are advantages of diagonal color transfer model compared with histogram matching and statistical color transfer scheme. We also have experimentally observed that the approach works even when the multi-view image is corrupted under realistic conditions such as rain or sun-flare.

  • BMSB - Color and Illumination Compensation Scheme for Multi-view Video Service
    2019 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), 2019
    Co-Authors: Jongbin Park, Jong-jin Jung, Sungjoo Park
    Abstract:

    This paper deals with the problem of color and illumination compensation for multi-view video service. In particular, we focus on finding a simple and lightweight color compensation algorithm because it is more friendly for realtime service. In this paper, we developed multi-view Rendering Software and applied and tested the diagonal matrix based color compensation method. Through experiments, we confirmed that there are advantages of diagonal color transfer model compared with histogram matching and statistical color transfer scheme. We also have experimentally observed that the approach works even when the multi-view image is corrupted under realistic conditions such as rain or sun-flare.