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 time-of-flight, ToF, camera for measuring distance information for objects of a scene includes a light source for emitting modulated light signals for illuminating the objects, an image sensor for capturing reflected light signals, and shutters for opening and closing the exposure of the image sensor. A pulse generator generates first pulses for switching the light source and second pulses for switching the shutters. A first driver amplifies the first pulses and outputs the same to the light source, and a second driver amplifies the second pulses and outputs the same to the shutters. A time measurement unit measures the propagation time of the pulses through the drivers and/or the pulse duration of the pulses output from the drivers. A processing unit generates a distance measurement image based on the captured reflected light signals to reduce the influence of phase errors on the distance measurement image.