Vorrichtung und Verfahren zum räumlichen Vermessen von Oberflächen

The invention relates to a device for spatially measuring surfaces, comprising a projector (2) for projecting patterns into an object space, two cameras (3) for recording images of a surface (1) to be measured in the object space and a control and evaluation unit (5) for actuating the cameras (3) and for evaluating the images recorded therewith. The projector (2) comprises a light source (6), a projection lens (7) and at least one rotatably arranged pattern structure (8) as an imaging element, and also a drive (9) for rotating the at least one pattern structure (8), while the control and evaluation unit (5) is configured to carry out the following steps: - actuating the cameras (3) so that they simultaneously record one image at a multiplicity of successive recording times, such that a sequence of brightness values is captured for each point in image planes of the cameras (3), - identifying corresponding points (11) in the image planes of the cameras (3) by virtue of a correlation function being evaluated between the sequences of brightness values captured for potentially corresponding points and a value of a correlation thus formed being maximized, and - determining spatial coordinates of surface points (10) on the surface (1) by triangulation on the basis of the points (11) identified as corresponding to one another. Moreover, the invention relates to a corresponding method for measuring surfaces.