Gmd-Forschungszentrum Informationstechnik Gmbh

Deutsches Zentrum Fuer Luft-Und Raumfahrt E.v

Deutsches Zentrum Fur Luft-Und Raumfahrt E.v.

Ines Ernst

Oliver Wittig

Anko Börner

Anko Boerner

Maximilian Buder

Juergen Wohlfeil

Dietmar Jackel

Eugen Funk

Heiko Hirschmueller

Jürgen Wohlfeil

Tom Thiele

Martin Bauer

Denis Griessbach

Jan-Peter Mund

Sebastian Ritter

Adrian Schischmanow

Dirk Baumbach

Sergey Zuev

A method and an apparatus reduce the temporary random access memory required when determining disparity values for at least two stereoscopically recorded images with known epipolar geometry, in which a disparity is determined for each pixel of an image. Path-dependent dissimilarity costs are calculated on the basis of a disparity-dependent cost function, and compared, in two runs for a number of paths which open in the pixel. The disparity-dependent cost function evaluates a pixel-based dissimilarity measure between the pixel and the corresponding pixel, according to the respective disparity, in a second image. The path-dependent dissimilarity costs for a first predetermined set of disparities are calculated in a first run for a number of first paths and in a second run for a number of remaining paths, and the corresponding path-dependent dissimilarity costs of the first paths and of the remaining paths are accumulated for a second predetermined set of disparities.

Method and apparatus for reducing the memory requirement for determining disparity values for at least two stereoscopically recorded images

In an apparatus and method for representing computer-modeled objects comprising a plurality of adjacent polygon surfaces, the image impression in the corner points of the polygon surfaces is calculated according to a local illumination model, whereas the image impression of the remaining pixels is interpolated according to the Gouraud shading method, and a color or brightness value is additionally calculated for simulating a surface structure for each pixel, the value taking into consideration the influence of the surface structure on the image impression without necessitating a complicated calculation of the local illumination model in each pixel.

Method and apparatus for representing computer-modeled objects

Image processing method for stimulating structure in relief, and device

Growing community of inventors

Berlin, Germany

Ines Ernst