Detection of three-dimensional image data

The invention relates to detection of three-dimensional image data. The invention relates to a camera (10) for detecting three-dimensional image data from a detection region (18), comprising: an illumination unit (12) for emitting emission light (16) modulated at least at a first modulation frequency; an image sensor (26) having a plurality of receiving elements (26a) for generating respective reception signals; a plurality of demodulation units (32) for demodulating the received signal at a first modulation frequency to obtain sampling values; a reference illumination unit (38) for emitting reference light (42) modulated at a first modulation frequency and directed within the camera onto the image sensor; and a control and evaluation unit (34). The control and evaluation unit is further designed to distribute reference part measurements for functional testing over a plurality of distance measurements. 本申请涉及三维图像数据的检测。给出了一种用于检测来自检测区域(18)的三维图像数据的相机(10)，具有：照明单元(12)，其用于发出至少以第一调制频率调制的发射光(16)；图像传感器(26)，其具有用于产生相应的接收