@misc{Zoeckler1997, type = {Master Thesis}, author = {Z{\"o}ckler, Malte}, title = {Molekulardynamische Simulation des Wachstums zirkumstellarer Silikatstaubteilchen}, year = {1997}, language = {en} } @article{ReinZoecklerTMaderetal.2002, author = {Rein, Karlheinz and Z{\"o}ckler, Malte and T. Mader, Michael and Gr{\"u}bel, Cornelia and Heisenberg, Martin}, title = {The Drosophila Standard Brain}, volume = {12}, journal = {Current Biology}, number = {3}, doi = {10.1016/S0960-9822(02)00656-5}, pages = {227 -- 231}, year = {2002}, language = {en} } @article{ZoecklerStalling2002, author = {Z{\"o}ckler, Malte and Stalling, Detlev}, title = {Using confocal microscopy and advanced 3-d visualization to investigate the Drosophila brain}, journal = {Scientific Computing \& Instrumentation}, year = {2002}, language = {en} } @article{ZoecklerStallingHege2000, author = {Z{\"o}ckler, Malte and Stalling, Detlev and Hege, Hans-Christian}, title = {Fast and Intuitive Generation of Geometric Shape Transitions}, volume = {16(5)}, journal = {The Visual Computer}, doi = {10.1007/PL00013396}, pages = {241 -- 253}, year = {2000}, language = {en} } @inproceedings{SeebassStallingZoeckleretal.1997, author = {Seebaß, Martin and Stalling, Detlev and Z{\"o}ckler, Malte and Hege, Hans-Christian and Wust, Peter and Felix, Roland and Deuflhard, Peter}, title = {Surface Mesh Generation for Numerical Simulations of Hyperthermia Treatments}, booktitle = {Proceedings of the 16th Annual Meeting of the European Society for Hyperthermic Oncology (ESHO-97)}, pages = {146}, year = {1997}, language = {en} } @inproceedings{ZoecklerStallingHege1996, author = {Z{\"o}ckler, Malte and Stalling, Detlev and Hege, Hans-Christian}, title = {Parallel Line Integral Convolution}, booktitle = {Proc. First Eurographics Workshop on Parallel Graphics and Visualization}, address = {Bristol, U.K.}, doi = {10.1016/S0167-8191(97)00039-2}, pages = {111 -- 128}, year = {1996}, language = {en} } @inproceedings{ZoecklerStallingHege1996, author = {Z{\"o}ckler, Malte and Stalling, Detlev and Hege, Hans-Christian}, title = {Interactive Visualization of 3D-Vector Fields Using Illuminated Streamlines}, booktitle = {Proc. IEEE Visualization 1996}, address = {San Fransisco}, doi = {10.1109/VISUAL.1996.567777}, pages = {107 -- 113}, year = {1996}, language = {en} } @article{StallingZoecklerHege1997, author = {Stalling, Detlev and Z{\"o}ckler, Malte and Hege, Hans-Christian}, title = {Fast Display of Illuminated Field Lines}, volume = {3}, journal = {IEEE Transactions on Visualization and Computer Graphics}, number = {2}, doi = {10.1109/2945.597795}, pages = {118 -- 128}, year = {1997}, language = {en} } @inproceedings{ReinZoecklerHeisenberg1999, author = {Rein, Karlheinz and Z{\"o}ckler, Malte and Heisenberg, Martin}, title = {A Quantitative 3D Model of the Flybrain: Shape and Arrangement of Neuropils}, booktitle = {Proc. First Vogt-Brodmann Symposium: Perspectives of Architectonic Brain Mapping}, address = {D{\"u}sseldorf /J{\"u}lich}, year = {1999}, language = {en} } @inproceedings{ReinZoecklerHeisenberg1999, author = {Rein, Karlheinz and Z{\"o}ckler, Malte and Heisenberg, Martin}, title = {A Deformable 3D Model of the Fly Brain}, booktitle = {Proc. Int. Conf. Neurobiology of Drosophila}, publisher = {Cold Spring Harbor}, address = {New York, USA}, year = {1999}, language = {en} } @inproceedings{StallingZoecklerHege1998, author = {Stalling, Detlev and Z{\"o}ckler, Malte and Hege, Hans-Christian}, title = {Segmentation of 3D Medical Images with Subvoxel Accuracy}, booktitle = {Proc. CARS '98 Computer Assisted Radiology and Surgery}, address = {Tokyo}, pages = {137 -- 142}, year = {1998}, language = {en} } @inproceedings{BrandtMalunSteegeetal.1999, author = {Brandt, Robert and Malun, Dagmar and Steege, A. and Z{\"o}ckler, Malte and Menzel, Randolf}, title = {Three Dimensional Reconstruction of Honey Bee Mushroom Bodies}, booktitle = {Annual Meeting of the Society for Neuroscience, Abstr. 25}, pages = {861}, year = {1999}, language = {en} } @article{ReinZoecklerHeisenberg1999, author = {Rein, Karlheinz and Z{\"o}ckler, Malte and Heisenberg, Martin}, title = {A Quantitative Three-Dimensional Model of the Drosophila Optic Lobes}, volume = {9}, journal = {Current Biology}, number = {2}, pages = {93 -- 96}, year = {1999}, language = {en} } @inproceedings{ReinZoecklerHeisenberg1999, author = {Rein, Karlheinz and Z{\"o}ckler, Malte and Heisenberg, Martin}, title = {Towards a Quantative 3D Model of the Fly Brain}, booktitle = {Proc. 27th G{\"o}ttingen Neurobiology Report}, editor = {Schnitzler, H.}, publisher = {G. Thieme Verlag}, address = {Stuttgart, Germany}, pages = {742}, year = {1999}, language = {en} } @inproceedings{SchirmacherZoecklerStallingetal.1998, author = {Schirmacher, Hartmut and Z{\"o}ckler, Malte and Stalling, Detlev and Hege, Hans-Christian}, title = {Boundary Surface Shrinking - a Continuous Approach to 3D Center Line Extraction}, booktitle = {Proc. of IMDSP'98, held in Alpbach}, editor = {Girod, Bernd and Niemann, Heinrich and Seidel, Hans}, address = {Austria}, pages = {25 -- 28}, year = {1998}, language = {en} } @phdthesis{neeZoeckler2003, author = {(n{\´e}e Z{\"o}ckler), Malte}, title = {Efficient Visualization and Reconstruction of 3D Geometric from Neuro-Biological Confocal Microscope Scans}, year = {2003}, language = {en} } @misc{HegeSeebassStallingetal.1997, author = {Hege, Hans-Christian and Seebass, Martin and Stalling, Detlev and Z{\"o}ckler, Malte}, title = {A Generalized Marching Cubes Algorithm Based on Non-Binary Classifications}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-2741}, number = {SC-97-05}, year = {1997}, abstract = {We present a new technique for generating surface meshes from a uniform set of discrete samples. Our method extends the well-known marching cubes algorithm used for computing polygonal isosurfaces. While in marching cubes each vertex of a cubic grid cell is binary classified as lying above or below an isosurface, in our approach an arbitrary number of vertex classes can be specified. Consequently the resulting surfaces consist of patches separating volumes of two different classes each. Similar to the marching cubes algorithm all grid cells are traversed and classified according to the number of different vertex classes involved and their arrangement. The solution for each configuration is computed based on a model that assigns probabilities to the vertices and interpolates them. We introduce an automatic method to find a triangulation which approximates the boundary surfaces - implicitly given by our model - in a topological correct way. Look-up tables guarantee a high performance of the algorithm. In medical applications our method can be used to extract surfaces from a 3D segmentation of tomographic images into multiple tissue types. The resulting surfaces are well suited for subsequent volumetric mesh generation, which is needed for simulation as well as visualization tasks. The proposed algorithm provides a robust and unique solution, avoiding ambiguities occuring in other methods. The method is of great significance in modeling and animation too, where it can be used for polygonalization of non-manifold implicit surfaces.}, language = {en} } @misc{StallingZoecklerHege1997, author = {Stalling, Detlev and Z{\"o}ckler, Malte and Hege, Hans-Christian}, title = {Fast Display of Illuminated Field Lines}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-2686}, number = {SC-96-58}, year = {1997}, abstract = {A new technique for interactive vector field visualization using large numbers of properly illuminated field lines is presented. Taking into account ambient, diffuse, and specular reflection terms as well as transparency and depth cueing, we employ a realistic shading model which significantly increases quality and realism of the resulting images. While many graphics workstations offer hardware support for illuminating surface primitives, usually no means for an accurate shading of line primitives are provided. However, we show that proper illumination of lines can be implemented by exploiting the texture mapping capabilities of modern graphics hardware. In this way high rendering performance with interactive frame rates can be achieved. We apply the technique to render large numbers of integral curves of a vector field. The impression of the resulting images can be further improved by a number of visual enhancements, like transparency and depth-cueing. We also describe methods for controlling the distribution of field lines in space. These methods enable us to use illuminated field lines for interactive exploration of vector fields.}, language = {en} } @misc{StallingZoecklerSanderetal.1998, author = {Stalling, Detlev and Z{\"o}ckler, Malte and Sander, Oliver and Hege, Hans-Christian}, title = {Weighted Labels for 3D Image Segmentation}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-3828}, number = {SC-98-39}, year = {1998}, abstract = {Segmentation tools in medical imaging are either based on editing geometric curves or on the assignment of region labels to image voxels. While the first approach is well suited to describe smooth contours at subvoxel accuracy, the second approach is conceptually more simple and guarantees a unique classification of image areas. However, contours extracted from labeled images typically exhibit strong staircase artifacts and are not well suited to represent smooth tissue boundaries. In this paper we describe how this drawback can be circumvented by supplementing region labels with additional weights. We integrated our approach into an interactive segmentation system providing a well-defined set of manual and semi-automatic editing tools. All tools update both region labels as well as the corresponding weights simultaneously, thus allowing one to define segmentation results at high resolution. We applied our techniques to generate 3D polygonal models of anatomical structures.}, language = {en} } @misc{ZoecklerStallingHege1999, author = {Z{\"o}ckler, Malte and Stalling, Detlev and Hege, Hans-Christian}, title = {Fast and Intuitive Generation of Geometric Shape Transitions}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-4219}, number = {SC-99-33}, year = {1999}, abstract = {We describe a novel method for continuously transforming two triangulated models of arbitrary topology into each other. Equal global topology for both objects is assumed, extensions for genus changes during metamorphosis are provided. The proposed method addresses the major challenge in 3D metamorphosis, namely specifying the morphing process intuitively, with minimal user interaction and sufficient detail. Corresponding regions and point features are interactively identified. These regions are parametrized automatically and consistently, providing a basis for smooth interpolation. Utilizing suitable 3D interaction techniques a simple and intuitive control over the whole morphing process is offered.}, language = {en} } @misc{StallingSeebassZoeckleretal.2000, author = {Stalling, Detlev and Seebass, Martin and Z{\"o}ckler, Malte and Hege, Hans-Christian}, title = {Hyperthermia Treatment Planning with HyperPlan - User's Manual}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-5957}, number = {00-27}, year = {2000}, abstract = {HyperPlan is a software system for performing 3D-simulations and treatment planning in regional hyperthermia. It allows the user to understand the complex effects of electromagnetic wave propagation and heat transport inside a patient's body. Optimized power amplitudes and phase settings can be calculated for the BSD radiowave applicators Sigma 60 and Sigma 2000 (eye-applicator). HyperPlan is built on top of the modular, object-oriented visualization system Amira. This system already contains powerful algorithms for image processing, geometric modelling and 3D graphics display. HyperPlan provides a number of hyperthermia-specific modules, allowing the user to create 3D tetrahedral patient models suitable for treatment planning. In addition, all numerical simulation modules required for hyperthermia simulation are part of HyperPlan. This guide provides a step-by-step introduction to hyperthermia planning using HyperPlan. It also describes the usage of the underlying visualization system Amira.}, language = {en} } @misc{ZoecklerReinBrandtetal.2001, author = {Z{\"o}ckler, Malte and Rein, Karlheinz and Brandt, Robert and Stalling, Detlev and Hege, Hans-Christian}, title = {Creating Virtual Insect Brains with Amira}, url = {http://nbn-resolving.de/urn:nbn:de:0297-zib-6589}, number = {01-32}, year = {2001}, abstract = {By combining techniques of preparation, histology, confocal microscopy, data visualization and data processing, we have created and recently published a standard brain model for drosophila and honey bee brains. This report describes the algorithms and implementation of the corresponding software modules. At the same time it serves as a user's guide for scientist who want to reproduce the results for differerent species or mutants.}, language = {en} }