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检索条件"任意字段=Conference on Visualization in Biomedical Computing"

共 893 条记录，以下是291-300 订阅

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7th International conference on Medical Imaging and Augmented Reality, MIAR 2016

7th International Conference on Medical Imaging and Augmente...

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7th International conference on Medical Imaging and Augmented Reality, MIAR 2016

ISBN: (纸本)9783319437743

The proceedings contain 39 papers. The special focus in this conference is on Computer Assisted Interventions, Augmented Reality, Virtual Reality, Medical Image Analysis and Medical Image computing. The topics include: A novel computer-aided surgical simulation system to streamline orthognathic surgical planning;computer assisted planning, simulation and navigation of periacetabular osteotomy;FEM simulation with realistic sliding effect to improve facial-soft-tissue-change prediction accuracy for orthognathic surgery;detection and single-view depth prediction of catheter electrodes;inference of tissue haemoglobin concentration from stereo RGB;radiation-free 3D navigation and vascular reconstruction for aortic stent graft deployment;electromagnetic guided in-situ laser fenestration of endovascular stent-graft;endovascular tools sensorization strategy and preliminary laser testing;a cost-effective navigation system for peri-acetabular osteotomy surgery;motion-based technical skills assessment in transoesophageal echocardiography;advanced design system for infantile cranium shape model growth prediction;interactive mixed reality for muscle structure and function learning;visualization techniques for augmented reality in endoscopic surgery;augmented reality imaging for robot-assisted partial nephrectomy surgery;mobile laserprojection in computer assisted neurosurgery;towards augmented reality guided craniotomy planning in tumour resections;augmenting scintigraphy images with pinhole aligned endoscopic cameras;tactile augmented reality for arteries palpation in open surgery training;adaptive mean shift based hemodynamic brain parcellation in fMRICascade registration of micro CT volumes taken in multiple resolutions;3D vessel segmentation using random walker with oriented flux analysis and direction coherence and visualization and computational framework for multi-modal biomedical data analysis.

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Ray grouping based ray casting for visualization of medical data

Ray grouping based ray casting for visualization of medical ...

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International conference on computing Technologies and Intelligent Data Engineering (ICCTIDE)

作者： R. Mehaboobathunnisa A. A. Haseena Thasneem M. Mohamed Sathik Research Department of Computer Science Sadakathullah Appa College Tirunelveli India Sadakathullah Appa College Tirunelveli India

ISBN: (纸本)9781467384384

Three dimensional visualization of medical volume data is achieved by many of the volume rendering algorithms either Direct or Indirect. The focus of our work is to make some simplifications in the Ray casting algorithm, a Direct Volume Rendering technique. The idea is to group the rays that are cast from similar voxels and the groups are verified for similarity on every successive sampling. This paper also compares the results with those results generated by the traditional ray casting in order ensure image quality. As the rays are cast in groups, the computational complexity of the rendering algorithm is reduced due to the decrease in the total number of samples being actually processed.

关键词： Casting Rendering (computer graphics) Computational complexity Interpolation biomedical imaging Three-dimensional displays Data visualization

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A web platform for analysis of multivariate heterogeneous biomedical time-series — A preliminary report

A web platform for analysis of multivariate heterogeneous bi...

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International conference on Systems, Signals and Image Processing, IWSSIP

作者： Alan Jovic Davor Kukolja Kresimir Jozic Marko Horvat Faculty of Electrical Engineering and Computing University of Zagreb Zagreb Croatia INA - industrija nafte d.d. Avenija Veceslava Holjevca Zagreb Croatia

ISBN: (纸本)9781467395564

biomedical time-series analysis is a diverse field that includes biomedical engineering, computer science, and medical achievements, with the goal to save human lives and improve the quality of healthcare. In this paper, we present a preliminary report on construction of an innovative Web platform for heterogeneous multivariate biomedical time-series analysis. The platform will feature data upload, preprocessing, feature extraction, model construction, visualization of signals and disorders, and reporting. Several scenarios of use will be prepared for a user, depending on his research or practice goals. An expert system for feature recommendation, specifically designed to support clinical decisions, will be implemented in the platform. In the current phase of research on our project, we describe the features of the platform, including some of its technological details, and the way in which we designed scenarios of use. Future papers will focus on specific aspects of the platform.

关键词： Feature extraction Unified modeling language Electrocardiography Data visualization Heart rate variability Brain modeling Servers

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Edge preserving smoothing and enhancement for electronic portal images

Edge preserving smoothing and enhancement for electronic por...

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International conference on computing Communication Control and Automation (ICCUBEA)

作者： Swati Darange K. T. V. Talele Soumyabrata Ghosh Sardar Patel Institute of Technology Andheri Mumbai India SAMEER HT Bombay Mumbai India

ISBN: (纸本)9781509032921

Portal images, acquired by Electronic Portal Imaging Devices (EPID), suffers from inherently poor visual quality in terms of spatial resolution and contrast. Edge-preserving smoothing is an image processing technique that smooths away the noisy textures while retaining sharp edges. Since portal images used for in-line treatment, patient setup verification, image processing could be applied to improve the visualization of anatomical details. To quantify the degree of enhancement we present an image enhancement technique particularly effective for sharpening major edges while eliminating a manageable degree of noise. To achieve this task guided filtering is proposed, which has better behavior at the edges. In this research, we firstly try to reduce the noise and then perform edge preservation on EPI.

关键词： Image edge detection Portals Smoothing methods Feature extraction biomedical applications of radiation visualization

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Segmentation and 3D visualization of Pelvic Bone from CT Scan Images

Segmentation and 3D Visualization of Pelvic Bone from CT Sca...

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IEEE International Advance computing conference, IACC

作者： K. Punnam Chandar T. Satyasavithri Dept. of E.C.E Kakatiya University Telangana India Dept. of E.C.E Jawaharlal Nehru Technological University Telangana India

ISBN: (纸本)9781467382878

Segmentation of the pelvic bone from computed tomography (CT) images is a challenging task as CT images are noisy, have wide inhomogeneities in the intensity distribution and its anatomical structure is quite complex. In this paper a framework is proposed to automatic segmentation and 3D visualization of the pelvic bone from computed tomography images to assist the physician to take medical decisions. Further, we have compared the results with the active contour based segmentation and the results are satisfactory. The CT data set used is PELVIX data set from OSIRIX. We have implemented the proposed segmentation frame work in MATLAB and the results are reported.

关键词： Image segmentation Pelvic bones Computed tomography Three-dimensional displays Active contours Injuries biomedical imaging

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Band detection in DGGE images using connectionist models and evolutionary computation, a first approximation

Band detection in DGGE images using connectionist models and...

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Conferencia Latinoamericana En Informatica (CLEI)

作者： Carola Figueroa Cristopher Alvear M. Angélica Caro Universidad del Bio Bio Concepcion CL

The current research, shows the development of a first approximation to an algorithm of DGGE (Denaturing Gradient Gel Electrophoresis) Bands images identification. The proposed algorithm considers the use of Artificia... 详细信息

ISBN: (纸本)9781509016341

关键词： Image segmentation RNA Deformable models biomedical imaging visualization Evolutionary computation Silicon compounds

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Virtual-reality based visualization of cardiac arrhythmias on mobile devices

Virtual-reality based visualization of cardiac arrhythmias o...

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Computers in Cardiology (CinC)

作者： Joachim Greiner Tobias Oesterlein Gustavo Lenis Olaf Dössel Institute of Biomedical Engineering Karlsruhe Institute of Technology Karlsruhe Germany Institute of Biomedical Engineering Karlsruhe Institute of Technology Germany

ISBN: (纸本)9781509008964

Computer simulations and imaging of human physiology and anatomy are effectively used for diagnostics and medical treatments and are thus a focus of scientific research. Suitable representation of data is a critical aspect to achieve best results. Therefore, we developed an interactive visualization scheme especially for the representation of cardiac arrhythmias based on a conventional mobile device and virtual reality (VR) goggles (Google Cardboard and Samsung Gear VR) in combination with a game engine. The aim of this paper is to raise awareness for this new technique, evaluate its potential and propose a general workflow for such a visualization environment. The use of a conventional mobile device in combination with VR goggles creates a portable and low-cost system, equipped with enough processing power and pixel density for many types of applications. The user can interact with the data through head movement or a secondary controller As current game engines support a wide range of additional input methods and controllers, the interaction method can be customized to fit the target audience. To evaluate this method, we conducted a survey with eight typical phenomena from the field of cardiac arrhythmias. The participants were asked to rate different performance aspects on a scale from one (very bad) to five (very good). All participants (N=27) rated the performance as fluent (median=5). Furthermore, most participants (70%) ranked the overall impression as very good (median=5). On the long run, the system can be used for education and presentations as well as improved planning and guidance of medical procedures.

关键词： Data visualization Engines Mobile handsets Games Computational modeling Eye protection Solid modeling

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Remote and collaborative medical image visualization computing platform

Remote and collaborative medical image visualization computi...

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International Congress on Image and Signal Processing, biomedical Engineering and Informatics (CISP-BMEI)

作者： Zhuofu Deng Zhiliang Zhu Yen-Wei Chen College of Software Engineering Northeastern University Shenyang P. R. China College of Information Science & Engineering Ritsumeikan University Kusatsu Shiga Japan

ISBN: (纸本)9781509037117

With the development of computing capability and display size in computing hardware, mobile terminals like iPhone or iPad have been more and more accepted as a tool to help radiologists to examine medical images of patients in order to give more accurate diagnostic conclusion through server. The radiologists can observe the images by interacting them with different hand gestures to translate, rotate and zoom in or out the objects in the medical images of the mobile terminals. However, because of the requirements of remote medical, we need a system that should have one kind of function-collaboration, which means that when different radiologists located at different places hold a remote teleconference to discuss the same medical images for difficult miscellaneous disease, one expert wishes that when he changes the position of object in the images the other experts will see the changes at once so that they can keep accordance all the time to talk over the focus with voice communication and other auxiliary tools. This paper developed a remote and collaborative medical image visualization system where medical experts can work collaboratively with each other. In the proposed application, the server system can file the data of patients like CT, MR images and other information. Meanwhile, the terminal clients can download the medical 2D data and rendering them on itself including 3D image reconstruction, moreover the server can also support teleconference mode that the experts in different places discuss one patient's illness with this system like in the same location of conference. Finally, the performance issues regarding the remote 3D visualization of the medical images platform over the wireless network of the proposed system were also discussed. The result demonstrated that the proposed remote and collaborative medical image visualization computing platform could provide a perfect interactive experience in the WLAN and 4G network.

关键词： Rendering (computer graphics) Medical diagnostic imaging Three-dimensional displays Servers Data visualization Mobile communication

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A Multi-Disciplinary Framework for Continuous biomedical Monitoring Using Low-Power Passive RFID-Based Wireless Wearable Sensors

A Multi-Disciplinary Framework for Continuous Biomedical Mon...

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International conference on Smart computing (SMARTCOMP)

作者： William Mongan Endla Anday Genevieve Dion Adam Fontecchio Kelly Joyce Timothy Kurzweg Yuqiao Liu Owen Montgomery Ilhaan Rasheed Cem Sahin Shrenik Vora Kapil Dandekar Computer Science Pediatrics Fashion Design Electrical and Computer Engineering Sociology Obstetrics & Gynecology Drexel University Philadelphia PA

We have applied passive Radio Frequency Identification (RFID), typically used for inventory management, to implement a novel knit fabric strain gauge assembly using conductive thread. As the fabric antenna is stretched, the strength of the received signal varies, yielding potential for wearable, wireless, powerless smart-garment devices based on small and inexpensive passive RFID technology. Knit fabric sensors and other RFID biosensors can enable comfortable, continuous monitoring of biofeedback, but requires an integrated framework consisting of antenna modeling and fabrication, signal processing and machine learning on the noisy wireless signal, secure HIPAA- compliant data storage, visualization and human factors, and integration with existing medical devices and electronic health records (EHR) systems. We present a multidisciplinary, end-to-end framework to study, model, develop, and deploy RFID-based biosensors.

关键词： Radiofrequency identification Monitoring biomedical monitoring Clothing Fabrics Biosensors

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Parallax error compensation for head-mounted gaze trackers based on binocular data

Parallax error compensation for head-mounted gaze trackers b...

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IEEE International conference on Real-time computing and Robotics (RCAR)

作者： Dan Su Youfu Li Caihua Xiong Department of Mechanical and Biomedical Engineering City University of Hong Kong Kowloon Hong Kong City University of Hong Kong Shenzhen Research Institute School of Mechanical Science and Engineering Huazhong University of Science and Technology

ISBN: (纸本)9781467389600

The parallax error caused by the spatial offset between the eye monitoring camera and the scene camera is a common challenge for head-mounted gaze trackers. To address this problem, the parallax error is investigated based on the epipolar geometry at first and two parallax compensation methods for binocular gaze tracking setups are proposed in this paper to ensure the accurate gaze point estimation over a wide range of distances without on-line manual adjustments. A comparative study is conducted on these two methods, and simulation results demonstrate that our proposed compensation methods can be effectively applied on the binocular gaze trackers.

关键词： Calibration Cameras Cornea visualization Geometry Estimation error

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