In medical imaging, registration is used to combine images containing information from different modalities or to track treatment effects over time in individual patients Most registration software packages do not provide an easy-to-use interface that facilitates the use of registration 2D visualization techniques are often used for visualizing 3D datasets
Using 3D models of medical data for surgery or treatment planning requires a comprehensive visualization of the data This is crucial to support the physician in creating a cognitive image of the presented model Vascular models are complex structures and, thus, the correct spatial interpretation is difficult We propose view-dependent circle glyphs that enh
Using 3D models of medical data for surgery or treatment planning requires a comprehensive visualization of the data This is crucial to support the physician in creating a cognitive image of the presented model Vascular models are complex structures and, thus, the correct spatial interpretation is difficult We propose view-dependent circle glyphs that enh
In this paper a new low cost bump mapping hardware is prcsented The new hardware approach does not rely on per pixel lighting, but instead uses Gouraud interpolated triangles The bump mapping effect is applied by blending the calculated per pixel bump map color onto the fragment s color This allows realtime animated distant light-sources to react on the s
In this paper a new low cost bump mapping hardware is prcsented The new hardware approach does not rely on per pixel lighting, but instead uses Gouraud interpolated triangles The bump mapping effect is applied by blending the calculated per pixel bump map color onto the fragment s color This allows realtime animated distant light-sources to react on the s
For the visualization of volume data the application of transfer functions is used widely In this area the preintegration technique allows high quality visualizations and the application of arbitrary transfer functions For regular grids, this approach leads to a two-dimensional pre-integration table which easily fits into texture memory In contrast to thi
For the visualization of volume data the application of transfer functions is used widely In this area the preintegration technique allows high quality visualizations and the application of arbitrary transfer functions For regular grids, this approach leads to a two-dimensional pre-integration table which easily fits into texture memory In contrast to thi
We present an illustrative rendering pipeline which combines anatomical information from CT scans with functional information from PET scans To treat lung metastases with Selective Internal Radiation Therapies (SIRTs), combined PET/CT recordings are used for treatment planning and intervention validation We firstly extract surface meshes from the lung lobe
We present an illustrative rendering pipeline which combines anatomical information from CT scans with functional information from PET scans To treat lung metastases with Selective Internal Radiation Therapies (SIRTs), combined PET/CT recordings are used for treatment planning and intervention validation We firstly extract surface meshes from the lung lobe
Biological multi-channel microscopy data are often characterized by a high local entropy and phenotypically identical structures covering only a few pixels and forming disjoint regions spread over, eg, a cell or a tissue section Toponome data as an example, comprise a fluorescence image (channel) per protein affinity reagent, and capture the location and
Biological multi-channel microscopy data are often characterized by a high local entropy and phenotypically identical structures covering only a few pixels and forming disjoint regions spread over, eg, a cell or a tissue section Toponome data as an example, comprise a fluorescence image (channel) per protein affinity reagent, and capture the location and
Magnetic resonance imaging is a technique which is routinely used by neuroradiologists Within the last decade, several techniques have been developed to visualize those MR images so that medical experts, and thus the patients, can benefit from it However, very little work has been done to use neuroanatomical MR data for educational purposes and to bring th
Neuro resection surgery is one of the last resorts when treating epilepsy patients where conservative treatment shows no effect on seizure reduction However, due to the severity of the surgery, the resection planning has to be as precise as possible in order to avoid harming any critical anatomy The tight time constraints in clinal routine demand for a hig
In this paper we present a new algorithm for real-time directional occlusion sampling We combine the real-time capabilities of Screen Space Ambient Occlusion (SSAO) with the Spherical Harmonics (SH) representation of local directional occlusion SH are well established and used in modern off-line rendering implementations such as PantaRay [PFHA10] Through
In this paper we present a new algorithm for real-time directional occlusion sampling We combine the real-time capabilities of Screen Space Ambient Occlusion (SSAO) with the Spherical Harmonics (SH) representation of local directional occlusion SH are well established and used in modern off-line rendering implementations such as PantaRay [PFHA10] Through
We present a semi-immersive 3D User Interface to sketch complex vascular structures and vessel pathologies by drawing centerlines in 3D Our framework comprises on-the-fly reconstruction of the corresponding vessel surface and subsequent local surface compression and expansion Additionally, we allow the enrichment with an illustrative, plausible blood flow
In clinical practice, hand drawn sketches are employed to express concepts and are an efficient method for the discussion of complex issues We present computer graphic methods to improve and support the creation and annotation of complex sketches, resulting in a more clear, expressive and understandable result For this, we consider the medical areas of tea
In clinical practice, hand drawn sketches are employed to express concepts and are an efficient method for the discussion of complex issues We present computer graphic methods to improve and support the creation and annotation of complex sketches, resulting in a more clear, expressive and understandable result For this, we consider the medical areas of tea
In medical visualization of surface information, problems often arise when visualizing several overlapping structures simultaneously There is a trade-off between visualizing multiple structures in a detailed way and limiting visual clutter, in order to allow users to focus on the main structures Illustrative visualization techniques can help alleviate thes
In medical visualization of surface information, problems often arise when visualizing several overlapping structures simultaneously There is a trade-off between visualizing multiple structures in a detailed way and limiting visual clutter, in order to allow users to focus on the main structures Illustrative visualization techniques can help alleviate thes
Annotations of relevant structures and regions are crucial in diagnostics, treatment planning, medical team meetings as well as in medical education They serve to focus discussions, present results of collaborative decision making, record and forward diagnostic findings, support orientation in complex or unfamiliar views on the data, and study anatomy Diff
Annotations of relevant structures and regions are crucial in diagnostics, treatment planning, medical team meetings as well as in medical education They serve to focus discussions, present results of collaborative decision making, record and forward diagnostic findings, support orientation in complex or unfamiliar views on the data, and study anatomy Diff
Large-scale longitudinal epidemiological studies, such as the Study of Health in Pomerania (SHIP), investigate thousands of individuals with common characteristics or experiences (a cohort) including a multitude of sociodemographic and biological factors Unique for SHIP is the inclusion of medical image data acquired via an extensive whole-body MRI protocol
The toponome of a cell describes the location and topological distribution of proteins across the cell In toponomics, the toponome is imaged and its inner structure and its semantics are investigated in order to understand how cells encode different functionalities both in health and disease Toponome imaging results in complex multiparameter data composed
The toponome of a cell describes the location and topological distribution of proteins across the cell In toponomics, the toponome is imaged and its inner structure and its semantics are investigated in order to understand how cells encode different functionalities both in health and disease Toponome imaging results in complex multiparameter data composed
In epidemiological studies, a group of people with common characteristics or experiences (a cohort) is studied including an analysis of socio-demographic as well as biological factors and correlations indicating per subject the absolute risk of getting a disease Longitudinal studies are carried out over years or even decades comprising up to thousands of in
Volume rendering has traditionally been an application for supercomputers, workstation networks or expensive special-purpose hardware In contrast, this report shows how far we have reached using the other extreme
This paper presents a reconfigurable, hardware accelerated, volume rendering system for high quality perspective ray casting The volume rendering accelerator performs ray casting by calculating the path of the ray through the volume using a programmable Xilinx Virtex FPGA which provides fast design changes and low cost development Volume datasets are store
This paper presents a reconfigurable, hardware accelerated, volume rendering system for high quality perspective ray casting The volume rendering accelerator performs ray casting by calculating the path of the ray through the volume using a programmable Xilinx Virtex FPGA which provides fast design changes and low cost development Volume datasets are store
We present an efficient implementation of a Dwyer-style Delaunay triangulation algorithm that runs in O(N) expected time An implicit quad-tree is constructed directly from the floating point bit patterns of the input points by sorting the corresponding Morton codes with a radix sorting procedure This unique structure adapts elegantly to any (non-)uniform d
We present an efficient implementation of a Dwyer-style Delaunay triangulation algorithm that runs in O(N) expected time An implicit quad-tree is constructed directly from the floating point bit patterns of the input points by sorting the corresponding Morton codes with a radix sorting procedure This unique structure adapts elegantly to any (non-)uniform d
Video segmentation requires separating foreground from background, but the general problem extends to more complicated scene segmentations of different objects and their multiple parts We develop a new approach to interactive multi-label video segmentation where many objects are segmented simultaneously with consistent spatio-temporal boundaries, based on i
Video segmentation requires separating foreground from background, but the general problem extends to more complicated scene segmentations of different objects and their multiple parts We develop a new approach to interactive multi-label video segmentation where many objects are segmented simultaneously with consistent spatio-temporal boundaries, based on i
Non-rigid 3D shape retrieval has become a research hotpot in communities of computer graphics, computer vision, pattern recognition, etc In this paper, we present the results of the SHREC15 Track
Non-rigid 3D shape retrieval has become a research hotpot in communities of computer graphics, computer vision, pattern recognition, etc In this paper, we present the results of the SHREC15 Track
Bounding volume hierarchies (BVH) are essential for efficient ray tracing In time-constrained situations such as real-time or large model visualization, fast construction of BVHs usually compromises hierarchy quality, resulting in reduced rendering speed We propose a parallel framework for the state-of-the-art BVH construction algorithm with spatial splits
Bounding volume hierarchies (BVH) are essential for efficient ray tracing In time-constrained situations such as real-time or large model visualization, fast construction of BVHs usually compromises hierarchy quality, resulting in reduced rendering speed We propose a parallel framework for the state-of-the-art BVH construction algorithm with spatial splits
This paper addresses the problem of reconstructing non-rigid 3D geometries from temporal image sequences captured with only a single camera under full perspective projection Without the knowledge of a shape deformation model, this task is severly under-constrained, because multiple shape configurations can produce the same image projections The challenge r
This paper addresses the problem of reconstructing non-rigid 3D geometries from temporal image sequences captured with only a single camera under full perspective projection Without the knowledge of a shape deformation model, this task is severly under-constrained, because multiple shape configurations can produce the same image projections The challenge r
Magnetic resonance imaging is a technique which is routinely used by neuroradiologists Within the last decade, several techniques have been developed to visualize those MR images so that medical experts, and thus the patients, can benefit from it However, very little work has been done to use neuroanatomical MR data for educational purposes and to bring th
