31 Result(s)
within
Chapter
Georgios Sakas
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Chapter
Off-Grid Green Hydrogen Production Systems
This chapter introduces the role of hydrogen in the current energy system transition: from fossil-based to renewable and low-carbon emission sources. Although solar and wind energy are abundant renewable sourc...
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Chapter and Conference Paper
Visual Comparison of 3D Medical Image Segmentation Algorithms Based on Statistical Shape Models
3D medical image segmentation is needed for diagnosis and treatment. As manual segmentation is very costly, automatic segmentation algorithms are needed. For finding best algorithms, several algorithms need to...
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Chapter and Conference Paper
Path Planning for Multi-port Lateral Skull Base Surgery Based on First Clinical Experiences
Our research project investigates a multi-port minimally-traumatic approach for lateral skull base surgery, where the surgical target shall be reached through up to three drill canals. For this purpose, an acc...
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Chapter and Conference Paper
Intraoperative Registration for Liver Tumor Ablation
Computer aided navigation augments intraoperatively gathered U/S with planning information that the doctor carries out before the intervention on a CT volume. A crucial step for the navigation is the registrat...
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Chapter and Conference Paper
FIST: Fast Interactive Segmentation of Tumors
Automatic segmentation methods for tumors are typically only suitable for a specific type of tumor in a specific imaging modality and sometimes lack in accuracy whereas manual tumor segmentation achieves the d...
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Chapter and Conference Paper
Absolute Orientation of Stereoscopic Cameras by Aligning Contours in Pairs of Images and Reference Images
Most approaches use corresponding points to determining an object’s orientation from stereo-images, but this is not always possible. Imaging modalities that do not produce correspondences for different viewing...
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Chapter and Conference Paper
Closed Loop: A Classification Framework for Interventional Procedures
We present a closed-loop taxonomy framework for interventional procedures assisting to understand and locate an increasing number of “buzzword driven” techniques within the workflow of the interventionalist. O...
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Chapter and Conference Paper
Erweiterung modellbasierter Segmentierung durch lokale Deformationskriterien
Modellbasierte Ansätze sind heutzutage Stand der Technik zur automatischen Organsegmentierung in medizinischen Bilddatensätzen. In dieser Arbeit wird ein Verfahren vorgestellt, welches die modellbasierte Segme...
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Chapter and Conference Paper
Feature Extraction from Medical Images for an Oral Cancer Reoccurrence Prediction Environment
We present the concept of a novel image feature extraction approach that will be used to predict oral cancer reoccurrence in the scope of the NeoMark project. Based on current clinical practice, we propose sev...
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Chapter and Conference Paper
Segmentation and Navigation Support of Clinical Data Sets to Simulate the Bronchoscopy and Rhinoscopy
A training and simulation system for therapy planning is developed based on patient specific imaging data. A real endoscope is used for navigation through the virtual patient. For this purpose sensors were bui...
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Chapter
Mobile Tele-Echography Systems — Teleinvivo: A Case Study
Telemedicine, defined as practice of medicine at a distance, has been performed ever since humans learned to communicate: a messenger carrying over a medical advice from a distant expert to the bed of a patien...
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Chapter and Conference Paper
Prospective Head Motion Compensation for MRI by Updating the Gradients and Radio Frequency During Data Acquisition
Subject motion appears to be a limiting factor in numerous magnetic resonance imaging (MRI) applications. For head imaging the subject’s ability to maintain the same head position for a considerable period of ...
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Chapter and Conference Paper
EXOMIO: A 3D Simulator for External Beam Radiotherapy
Simulators are medical devices used in the oncology clinics to perform the simulation procedure for the external beam radiotherapy treatment. Unlikely for a clinic to obtain a real Simulator is a high investme...
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Chapter and Conference Paper
Volume Definition Tools for Medical Imaging Applications
Central focus of this work, are techniques used to improve time and interaction needed for a user when defining one or more structures. These techniques involve interpolation methods for the manual volume defi...
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Chapter and Conference Paper
Optimized Maximum Intensity Projection (MIP)
We present an improved version of the MIP algorithm that requires roughly 2%–10% of the computational effort of the brute-force, straight-forward version. The algorithm conserves the image quality and requires...
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Chapter and Conference Paper
Results of the 1994 Survey on Image Synthesis
At the 1992 Rendering Workshop in Bristol, Michael Cohen presented the results of what he called a very unscientific survey of image synthesis researchers. This survey stimulated a great deal of discussion, so...
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Chapter and Conference Paper
Texture Sha**: A Method for Modeling Arbitrarily Shaped Volume Objects in Texture Space
Texturing methods developed in the past few years are well suited for’ solid objects’, which possess a well-defined and sharp surface, but they are inadequate for texturing ’foggy’ or ’fuzzy’ volume objects, w...
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Chapter
Anhang: Farbbildbeispiele
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Chapter
Literatur
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Chapter
Prolog
In den letzten Jahren gab es in der Computergaphik viele Bemühungen, den realitätsnahen Eindruck von computergenerierten Bildern zu steigern. Der Bedarf nach realitätsnaher Graphik wird durch viele Beispiele a...
