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Klaus Engel
Klaus Engel, Sinsheim DE
| Patent application number | Description | Published |
|---|---|---|
| 20110072846 | HOUSEHOLD APPLIANCE - A household appliance including a housing that has an opening; a door rotatable about a first rotation axis between a closed position in which the opening is closed by the door and an open position in which the opening is opened; a first door-opening unit to generate a first opening force to the door at least when the door is in the closed position; and a second door-opening unit to generate a second opening force to the door at least when the door is in the closed position. The second door-opening unit is arranged closer to the first rotation axis than the first door-opening unit. | 03-31-2011 |
| 20110074263 | HOUSEHOLD APPLIANCE WITH A DOOR COMPRISING A BRAKING DEVICE - A household appliance including a door that tilts about a tilt axis; a braking device to dampen a tilt motion of the door; and a transferring unit to transfer rotation of the tilt axis to a braking axis during the tilt motion of the door. The braking axis is offset relative to the tilt axis and the braking device is in functional cooperation with the braking axis. | 03-31-2011 |
| 20110080083 | HOUSEHOLD APPLIANCE - A household appliance that includes a housing having an opening; a door rotatable about a first rotation axis to selectively open or close the opening; and a braking system to damp a rotational movement of the door when the door is opened or closed. The braking system includes a damper and a transmission unit that is coupled between the door and the damper to be driven by the door and for transmitting a movement of the door to the damper. | 04-07-2011 |
Klaus Engel, Nurnberg DE
| Patent application number | Description | Published |
|---|---|---|
| 20090189889 | Method and apparatus for visualizing 3D image data from tomographic imaging modalities - At least one embodiment of the present invention relates to a method and an apparatus for visualizing 3D image data from tomographic imaging modalities using a rendering technique in which every pixel is calculated by integrating or summing along respectively one ray through a volume surrounded by the 3D image data. In the method, a peeling function is additionally introduced into the integration or summation, by which, in the integration or summation, the 3D image data on the respective ray only contributes with its full data value to reducing the optical transparency beyond a prescribable value of an optical skin depth. The peeling function is selected such that, in a transition region before the prescribable value of the optical skin depth is reached, the 3D image data on the ray still contributes to reducing the optical transparency with a fraction of its full data value such that there is a smooth profile, generated by the peeling function, when an outer layer is peeled off. The method and the associated apparatus make it possible to avoid image artifacts such as pixel flickering during volume visualization. | 07-30-2009 |
| 20110069066 | INTERACTIVE CHANGING OF THE DEPICTION OF AN OBJECT DISPLAYED USING VOLUME RENDERING - A depiction of a three-dimensional object that is displayed using volume rendering is influenced. A representation of the object, in which values of a variable characterizing the object are given at spatial points of the object and in which color values are allocated to the variable during the course of rendering, is provided. A set of points defined in the space of representation of the object is input, and a distance from spatial points incorporated by the representation to the set of points is calculated. Color values allocated to spatial points are modified, or color values are determined according to the calculated distance. A depiction of the object by volume rendering is calculated using the representation of the object, the representation incorporating the modified or determined color values. | 03-24-2011 |
| 20110069069 | EFFICIENT DETERMINATION OF LIGHTING EFFECTS IN VOLUME RENDERING - A two-dimensional representation of an object using volume rendering, with a representation of the object being used in which values of a quantity characterizing the object are given at spatial points of the object, is provided. A blended color value for the representation as pixels on a screen is calculated using a volume rendering technique that does not use an illumination model or uses a local illumination model. At least one ray emanating from a surface of the object is simulated for the purpose of calculating the effect of shadows or the effect of ambient occlusion. A value for the effect of shadows or a value for the effect of ambient occlusion is calculated using the at least one ray. The blended color value and the calculated value are combined in order to obtain a blended color value that takes into account the effect of shadows or ambient occlusion. | 03-24-2011 |
| 20110069070 | EFFICIENT VISUALIZATION OF OBJECT PROPERTIES USING VOLUME RENDERING - A method for the visualization of an object using simulated radiation includes using a representation of the object, in which values of a variable that characterizes the object are given at spatial points in the object. A first ray is generated to determine a pixel color value assigned to a pixel for a two-dimensional representation of the object. The first ray is propagated through at least a part of the object. The method also includes determining, step-by-step, values of a variable on the first ray and detecting a surface of the object using the values determined on the first ray. At least one second ray is generated for determining a quantitative value that characterizes a property of the object, and the at least one second ray is propagated away from the surface, through at least a part of the object. The method also includes determining, step-by-step, values associated with the variable on the at least one second ray, determining the quantitative value that characterizes the property of the object using the at least one second ray, assigning a color value in accordance with the quantitative value, and using the color value to determine the pixel color value. | 03-24-2011 |
Klaus Engel, Donauworth DE
| Patent application number | Description | Published |
|---|---|---|
| 20080238932 | Method and device for adjusting color value for a low-noise visualization of volumetric objects - A device for adjusting a color value assigned to a spatial point for a low-noise volume rendering of an object is provided. The device mixes a first color value from a classification unit with a second color value obtained by the application of an illumination model on the first color value. | 10-02-2008 |
| 20080297508 | DISTRIBUTED CALCULATION OF IMAGES OF VOLUMETRIC OBJECTS - A method for calculating an image in the context of a volume visualization by ray casting using a plurality of computing nodes is provided. The method includes subdividing a volume that is to be visualized into subvolumes assigned to the plurality of computing nodes; assigning a subdivision of data to volume points and storing the subdivision of data in a memory associated with the plurality of computing nodes, the subdivision corresponding to the assignment of subvolumes to nodes; and computing at least one pixel by generating a ray leading through the volume, wherein computing includes taking into account points lying on the ray one after another. | 12-04-2008 |
| 20090033657 | Sliding Texture Volume Rendering - Subsets of volume data are sequentially stored for volume rendering from two dimensional textures. For example, pairs of adjacent two-dimensional images are loaded into RAM or cache. Strips of texture data are interpolated for polygons extending between the two-dimensional images. The strips or polygons are more orthogonal to a viewing direction than the two-dimensional images. After interpolating texture data from the two-dimensional images for a plurality of non-coplanar polygons, the texture data is rendered. The rendered information represents one portion of the three dimensional representation. Other portions are rendered by repeating the process for other pairs or subset groups of adjacent two-dimensional images. A lower cost apparatus, such as a programmed computer or a GPU with a limited amount of memory, is able to render images for three dimensional representations of very large three-dimensional arrays. The images may be rendered without copying volume data for different main axes. | 02-05-2009 |
Klaus Engel, Aachen DE
| Patent application number | Description | Published |
|---|---|---|
| 20080279328 | Systems and Methods Using X-Ray Tube Spectra For Computed Tomography Applications - Computed tomography (CT) systems are provided that utilize x-ray tube spectra in connection with the generation and/or interpretation of CT data. The disclosed systems and methods use x-ray tube spectra associated with CT systems to enhance contrast and/or image quality, e.g., by making use of energy selective detection techniques. The x-ray spectra may be determined in a variety of ways, e.g., incorporation of a spectral x-ray tube model into the CT system, using the output of Monte-Carlo simulations, and/or processing measured experimental spectral tube data for the CT system. The x-ray tube spectra is generally generated by and/or stored in a computer system associated with the CT system and may be used in support of an energy selective detective method and/or generation of spectral CT images. | 11-13-2008 |
Klaus Engel, Nuernberg DE
| Patent application number | Description | Published |
|---|---|---|
| 20120045105 | METHOD AND DEVICE TO PROVIDE QUALITY INFORMATION FOR AN X-RAY IMAGING PROCEDURE - In a method and device spatially resolved quality information is provided for an x-ray imaging procedure in which a data field representing the examination subject is reconstructed from a number of exposures of an examination subject. Quality information that indicates the reliability of the reconstructed data field for the corresponding element is determined for a number of elements of the data field. | 02-23-2012 |