Abstract: A time-of-flight, ToF, camera for measuring distance information for objects of a scene. The ToF camera comprises a light source for illuminating the objects, an image sensor for acquiring light signals reflected from the objects, a processing unit for processing first portions of the reflected light signals modulated with oscillations of a first frequency, and for processing second portions of the reflected light signals modulated with oscillations of a second frequency. The second frequency is higher than the first frequency and a second distance measurement value range is smaller than a first distance measurement value range. The second frequency is a non-integer multiple of the first frequency. The processing unit is adapted to restrict, on the basis of a spacing, the determining of the second distance measurement value range to the zeroth repetition of a predetermined number of repetitions of the first distance measurement value range.

Abstract: A measuring apparatus (1) for measuring at least one geometric variable (h), and to a corresponding measuring method are provided. The measuring apparatus (1) is preferably designed as a handheld apparatus for creating a dimensional measurement of an examination object (3). The measuring method according to the invention is distinguished by the fact that from a sequence of images, preferably recorded by a camera (5), both robust features (9) and precise features (13) to be distinguished therefrom in a regular manner are detected, such that a robust 3D model is created and precise information about the geometric variable (h) to be measured is calculated.

Abstract: A method for identifying corresponding image regions in a sequence of images (1; 21) is provided, wherein one or more features (P2a, P2b) from a second image are assigned to each feature (P1a, P2a) from a first image using correspondence graphs. The costs (C1-C5) that are associated with each assignment are represented by functions. The concrete selection of a unique correspondence for each feature which is then used for the further calculations is performed on the basis of these costs.